MESON Chess Problem Database

Problem Display
PID: 236945 (6kN/6P1/6K1/6n1/6B1/B7/8/8 w - - 0 1)

Gartser, Arthur Teodorovich

Shakh-M (Borovich), 1987

6kN/6P1/6K1/6n1/6B1/B7/8/8

#5

5 + 2

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Keys
    • 1.Kh6!
      • threat
        • 2.Bh5
          • threat
            • 3.Bc1
              • threat
                • 4.Bb2
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bd2
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Ba3
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Be3
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bf4
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bg6
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Sh3
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Se4
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Se6
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Sh7
                    • 5.Bf7#
                    • 5.Bxh7#
                • 4.Be8
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
              • 3...Sf7+
                • 4.Bxf7#
              • 3...Sf3
                • 4.Bf7#
              • 3...Sh3
                • 4.Bf7#
              • 3...Se4
                • 4.Bf7#
              • 3...Se6
                • 4.Bf7#
              • 3...Sh7
                • 4.Bf7#
            • 3.Bb2
              • threat
                • 4.Ba1
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bc1
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Ba3
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bc3
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bd4
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Be5
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bf6
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bg6
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Sh3
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Se4
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Se6
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Sh7
                    • 5.Bf7#
                    • 5.Bxh7#
                • 4.Be8
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
              • 3...Sf7+
                • 4.Bxf7#
              • 3...Sf3
                • 4.Bf7#
              • 3...Sh3
                • 4.Bf7#
              • 3...Se4
                • 4.Bf7#
              • 3...Se6
                • 4.Bf7#
              • 3...Sh7
                • 4.Bf7#
            • 3.Bb4
              • threat
                • 4.Be1
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bd2
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Ba3
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bc3
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Ba5
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bc5
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bd6
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Be7
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bf8
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bg6
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Sh3
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Se4
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Se6
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Sh7
                    • 5.Bf7#
                    • 5.Bxh7#
                • 4.Be8
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
              • 3...Sf7+
                • 4.Bxf7#
              • 3...Sf3
                • 4.Bf7#
              • 3...Sh3
                • 4.Bf7#
              • 3...Se4
                • 4.Bf7#
              • 3...Se6
                • 4.Bf7#
              • 3...Sh7
                • 4.Bf7#
            • 3.Bc5
              • threat
                • 4.Bg1
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bf2
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Ba3
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Be3
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bb4
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bd4
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bb6
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bd6
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Ba7
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Be7
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bf8
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bg6
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Sh3
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Se4
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Se6
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Sh7
                    • 5.Bf7#
                    • 5.Bxh7#
                • 4.Be8
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
              • 3...Sf7+
                • 4.Bxf7#
              • 3...Sf3
                • 4.Bf7#
              • 3...Sh3
                • 4.Bf7#
              • 3...Se4
                • 4.Bf7#
              • 3...Se6
                • 4.Bf7#
              • 3...Sh7
                • 4.Bf7#
            • 3.Bd6
              • threat
                • 4.Bg6
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Sh3
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Se4
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Se6
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Sh7
                    • 5.Bf7#
                    • 5.Bxh7#
                • 4.Be8
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bh2
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Ba3
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bg3
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bb4
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bf4
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bc5
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Be5
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bc7
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Be7
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bb8
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bf8
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
              • 3...Sf7+
                • 4.Bxf7#
              • 3...Sf3
                • 4.Bf7#
              • 3...Sh3
                • 4.Bf7#
              • 3...Se4
                • 4.Bf7#
              • 3...Se6
                • 4.Bf7#
              • 3...Sh7
                • 4.Bf7#
            • 3.Be7
              • threat
                • 4.Bg6
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Sh3
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Se4
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Se6
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Sh7
                    • 5.Bf7#
                    • 5.Bxh7#
                • 4.Be8
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Ba3
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bb4
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bc5
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bd6
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bf6
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bd8
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bf8
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
              • 3...Sf7+
                • 4.Bxf7#
              • 3...Sf3
                • 4.Bf7#
              • 3...Sh3
                • 4.Bf7#
              • 3...Se4
                • 4.Bf7#
              • 3...Se6
                • 4.Bf7#
              • 3...Sh7
                • 4.Bf7#
            • 3.Bf8
              • threat
                • 4.Bg6
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Sh3
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Se4
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Se6
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Sh7
                    • 5.Bf7#
                    • 5.Bxh7#
                • 4.Be8
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Ba3
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bb4
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bc5
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bd6
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Be7
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
              • 3...Sf7+
                • 4.Bxf7#
              • 3...Sf3
                • 4.Bf7#
              • 3...Sh3
                • 4.Bf7#
              • 3...Se4
                • 4.Bf7#
              • 3...Se6
                • 4.Bf7#
              • 3...Sh7
                • 4.Bf7#
            • 3.Bg6
              • threat
                • 4.Bc1
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Sh3
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Se4
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Se6
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Sh7
                    • 5.Bf7#
                    • 5.Bxh7#
                • 4.Bb2
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Sh3
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Se4
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Se6
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Sh7
                    • 5.Bf7#
                    • 5.Bxh7#
                • 4.Bb4
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Sh3
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Se4
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Se6
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Sh7
                    • 5.Bf7#
                    • 5.Bxh7#
                • 4.Bc5
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Sh3
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Se4
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Se6
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Sh7
                    • 5.Bf7#
                    • 5.Bxh7#
                • 4.Bd6
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Sh3
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Se4
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Se6
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Sh7
                    • 5.Bf7#
                    • 5.Bxh7#
                • 4.Be7
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Sh3
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Se4
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Se6
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Sh7
                    • 5.Bf7#
                    • 5.Bxh7#
                • 4.Bf8
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Sh3
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Se4
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Se6
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Sh7
                    • 5.Bf7#
                    • 5.Bxh7#
                • 4.Bh5
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Be8
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
              • 3...Sf7+
                • 4.Bxf7#
              • 3...Sf3
                • 4.Bf7#
                • 4.Bh7#
              • 3...Sh3
                • 4.Bf7#
                • 4.Bh7#
              • 3...Se4
                • 4.Bf7#
                • 4.Bh7#
              • 3...Se6
                • 4.Bf7#
                • 4.Bh7#
              • 3...Sh7
                • 4.Bf7#
                • 4.Bxh7#
            • 3.Be8
              • threat
                • 4.Kg6
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sf7
                    • 5.Bxf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bc1
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bb2
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bb4
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bc5
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bd6
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Be7
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bf8
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bh5
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                  • 4...Sh3
                    • 5.Bf7#
                  • 4...Se4
                    • 5.Bf7#
                  • 4...Se6
                    • 5.Bf7#
                  • 4...Sh7
                    • 5.Bf7#
                • 4.Bg6
                  • 4...Sf7+
                    • 5.Bxf7#
                  • 4...Sf3
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Sh3
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Se4
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Se6
                    • 5.Bf7#
                    • 5.Bh7#
                  • 4...Sh7
                    • 5.Bf7#
                    • 5.Bxh7#
              • 3...Sf7+
                • 4.Bxf7#
              • 3...Sf3
                • 4.Bf7#
              • 3...Sh3
                • 4.Bf7#
              • 3...Se4
                • 4.Bf7#
              • 3...Se6
                • 4.Bf7#
              • 3...Sh7
                • 4.Bf7#
          • 2...Sf7+
            • 3.Bxf7#
          • 2...Sf3
            • 3.Bf7#
          • 2...Sh3
            • 3.Bf7#
          • 2...Se4
            • 3.Bf7#
          • 2...Se6
            • 3.Bf7#
          • 2...Sh7
            • 3.Bf7#
      • 1...Sf7+
        • 2.Sxf7
          • 2...Kxf7
            • 3.g8Q+
              • 3...Kxg8
                • 4.Be6+
                  • 4...Kh8
                    • 5.Bb2#
            • 3.g8R
              • threat
                • 4.Rf8#
              • 3...Kf6
                • 4.Bd6
                  • 4...Kf7
                    • 5.Rf8#
                • 4.Re8
                  • 4...Kf7
                    • 5.Rf8#
              • 3...Kxg8
                • 4.Be6+
                  • 4...Kh8
                    • 5.Bb2#
            • 3.Bd6
              • 3...Kf6
                • 4.g8R
                  • 4...Kf7
                    • 5.Rf8#

FEATURES

NOT CLASSIFIED
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).