MESON Chess Problem Database

Problem Display
PID: 102355 (5b2/K1Q5/3p1pR1/1p5p/2p1pB1k/n4p1p/6br/3Nqr2 w - - 0 1)

Schmitt, Olivier

Schach-Aktiv, 1992

5b2/K1Q5/3p1pR1/1p5p/2p1pB1k/n4p1p/6br/3Nqr2

#4

5 + 15

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Keys
    • 1.Qa5!
      • threat
        • 2.Qxe1+
          • 2...Rxe1
            • 3.Bg3#
          • 2...Rf2
            • 3.Bg3#
            • 3.Qxf2#
          • 2...f2
            • 3.Bg3#
      • 1...Qxa5+
        • 2.Kb7
          • threat
            • 3.Bg3#
          • 2...Qb6+
            • 3.Kxb6
              • threat
                • 4.Bg3#
          • 2...Qc7+
            • 3.Kxc7
              • threat
                • 4.Bg3#
          • 2...Qa6+
            • 3.Kxa6
              • threat
                • 4.Bg3#
          • 2...Qa7+
            • 3.Kxa7
              • threat
                • 4.Bg3#
          • 2...Qa8+
            • 3.Kxa8
              • threat
                • 4.Bg3#
          • 2...Qe1
            • 3.Se3
              • threat
                • 4.Sf5#
              • 3...Qxe3
                • 4.Bg3#
              • 3...f5
                • 4.Sxf5#
      • 1...c3
        • 2.Qxc3
          • threat
            • 3.Qxf6#
          • 2...Qf2+
            • 3.Sxf2
              • threat
                • 4.Bg3#
                • 4.Qxf6#
          • 2...Qe3+
            • 3.Sxe3
              • threat
                • 4.Sf5#
                • 4.Bg3#
                • 4.Qxf6#
            • 3.Qxe3
              • threat
                • 4.Bg3#
          • 2...Bh6
            • 3.Qxe1+
              • 3...Rxe1
                • 4.Bg3#
              • 3...Rf2
                • 4.Bg3#
                • 4.Qxf2#
              • 3...f2
                • 4.Bg3#
            • 3.Qxf6+
              • 3...Bg5
                • 4.Qxg5#
          • 2...Be7
            • 3.Qxe1+
              • 3...Rxe1
                • 4.Bg3#
              • 3...Rf2
                • 4.Bg3#
                • 4.Qxf2#
              • 3...f2
                • 4.Bg3#
          • 2...Bg7
            • 3.Qxe1+
              • 3...Rxe1
                • 4.Bg3#
              • 3...Rf2
                • 4.Bg3#
                • 4.Qxf2#
              • 3...f2
                • 4.Bg3#
      • 1...b4
        • 2.Bg5+
          • 2...Kg3
            • 3.Bxf6+
              • 3...Kf4
                • 4.Qg5#
          • 2...Kg4
            • 3.Bxf6+
              • 3...Kf4
                • 4.Qg5#

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