MESON Chess Problem Database

Problem Display
PID: 231897 (8/8/8/8/n2p4/3P4/b1Q5/k1K5 w - - 0 1)

Massmann, Wilhelm Karl Heinrich

Deutsche Schachblatter, 1937

8/8/8/8/n2p4/3P4/b1Q5/k1K5

#4

3 + 4

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Keys
    • 1.Qd1!
      • threat
        • 2.Kc2+
          • 2...Bb1+
            • 3.Qxb1#
        • 2.Qc2
          • 2...Bb1
            • 3.Qxb1#
          • 2...Bb3
            • 3.Qb1#
          • 2...Bc4
            • 3.Qb1#
          • 2...Bd5
            • 3.Qb1#
          • 2...Be6
            • 3.Qb1#
          • 2...Bf7
            • 3.Qb1#
          • 2...Bg8
            • 3.Qb1#
          • 2...Sb2
            • 3.Qxb2#
          • 2...Sc3
            • 3.Qb2#
          • 2...Sc5
            • 3.Qb2#
          • 2...Sb6
            • 3.Qb2#
      • 1...Sb2
        • 2.Qe2
          • threat
            • 3.Qxb2#
          • 2...Sxd3+
            • 3.Qxd3
              • threat
                • 4.Qxd4#
              • 3...Bb1
                • 4.Qxb1#
              • 3...Bb3
                • 4.Qb1#
              • 3...Bc4
                • 4.Qb1#
              • 3...Bd5
                • 4.Qb1#
              • 3...Be6
                • 4.Qb1#
              • 3...Bf7
                • 4.Qb1#
              • 3...Bg8
                • 4.Qb1#
          • 2...Sd1
            • 3.Qc2
              • 3...Bb1
                • 4.Qxb1#
              • 3...Bb3
                • 4.Qb1#
              • 3...Bc4
                • 4.Qb1#
              • 3...Bd5
                • 4.Qb1#
              • 3...Be6
                • 4.Qb1#
              • 3...Bf7
                • 4.Qb1#
              • 3...Bg8
                • 4.Qb1#
              • 3...Sb2
                • 4.Qxb2#
              • 3...Sf2
                • 4.Qb2#
              • 3...Sc3
                • 4.Qb2#
              • 3...Se3
                • 4.Qb2#
          • 2...Sa4
            • 3.Qc2
              • 3...Bb1
                • 4.Qxb1#
              • 3...Bb3
                • 4.Qb1#
              • 3...Bc4
                • 4.Qb1#
              • 3...Bd5
                • 4.Qb1#
              • 3...Be6
                • 4.Qb1#
              • 3...Bf7
                • 4.Qb1#
              • 3...Bg8
                • 4.Qb1#
              • 3...Sb2
                • 4.Qxb2#
              • 3...Sc3
                • 4.Qb2#
              • 3...Sc5
                • 4.Qb2#
              • 3...Sb6
                • 4.Qb2#
          • 2...Sc4
            • 3.dxc4
              • threat
                • 4.Qb2#
            • 3.Qc2
              • 3...Bb1
                • 4.Qxb1#
              • 3...Bb3
                • 4.Qb1#
              • 3...Sb2
                • 4.Qxb2#
              • 3...Sd2
                • 4.Qb2#
              • 3...Sa3
                • 4.Qb2#
              • 3...Se3
                • 4.Qb2#
              • 3...Sa5
                • 4.Qb2#
              • 3...Se5
                • 4.Qb2#
              • 3...Sb6
                • 4.Qb2#
              • 3...Sd6
                • 4.Qb2#
        • 2.Qd2
          • threat
            • 3.Qxb2#
          • 2...Sxd3+
            • 3.Qxd3
              • threat
                • 4.Qxd4#
              • 3...Bb1
                • 4.Qxb1#
              • 3...Bb3
                • 4.Qb1#
              • 3...Bc4
                • 4.Qb1#
              • 3...Bd5
                • 4.Qb1#
              • 3...Be6
                • 4.Qb1#
              • 3...Bf7
                • 4.Qb1#
              • 3...Bg8
                • 4.Qb1#
          • 2...Sd1
            • 3.Qc2
              • 3...Bb1
                • 4.Qxb1#
              • 3...Bb3
                • 4.Qb1#
              • 3...Bc4
                • 4.Qb1#
              • 3...Bd5
                • 4.Qb1#
              • 3...Be6
                • 4.Qb1#
              • 3...Bf7
                • 4.Qb1#
              • 3...Bg8
                • 4.Qb1#
              • 3...Sb2
                • 4.Qxb2#
              • 3...Sf2
                • 4.Qb2#
              • 3...Sc3
                • 4.Qb2#
              • 3...Se3
                • 4.Qb2#
          • 2...Sa4
            • 3.Qc2
              • 3...Bb1
                • 4.Qxb1#
              • 3...Bb3
                • 4.Qb1#
              • 3...Bc4
                • 4.Qb1#
              • 3...Bd5
                • 4.Qb1#
              • 3...Be6
                • 4.Qb1#
              • 3...Bf7
                • 4.Qb1#
              • 3...Bg8
                • 4.Qb1#
              • 3...Sb2
                • 4.Qxb2#
              • 3...Sc3
                • 4.Qb2#
              • 3...Sc5
                • 4.Qb2#
              • 3...Sb6
                • 4.Qb2#
          • 2...Sc4
            • 3.dxc4
              • threat
                • 4.Qb2#
                • 4.Qxd4#
            • 3.Qc2
              • 3...Bb1
                • 4.Qxb1#
              • 3...Bb3
                • 4.Qb1#
              • 3...Sb2
                • 4.Qxb2#
              • 3...Sd2
                • 4.Qb2#
              • 3...Sa3
                • 4.Qb2#
              • 3...Se3
                • 4.Qb2#
              • 3...Sa5
                • 4.Qb2#
              • 3...Se5
                • 4.Qb2#
              • 3...Sb6
                • 4.Qb2#
              • 3...Sd6
                • 4.Qb2#
      • 1...Sc3
        • 2.Qd2
          • threat
            • 3.Qb2#
          • 2...Se2+
            • 3.Qxe2
              • threat
                • 4.Qb2#
          • 2...Sd1
            • 3.Qc2
              • 3...Bb1
                • 4.Qxb1#
              • 3...Bb3
                • 4.Qb1#
              • 3...Bc4
                • 4.Qb1#
              • 3...Bd5
                • 4.Qb1#
              • 3...Be6
                • 4.Qb1#
              • 3...Bf7
                • 4.Qb1#
              • 3...Bg8
                • 4.Qb1#
              • 3...Sb2
                • 4.Qxb2#
              • 3...Sf2
                • 4.Qb2#
              • 3...Sc3
                • 4.Qb2#
              • 3...Se3
                • 4.Qb2#
          • 2...Sa4
            • 3.Qc2
              • 3...Bb1
                • 4.Qxb1#
              • 3...Bb3
                • 4.Qb1#
              • 3...Bc4
                • 4.Qb1#
              • 3...Bd5
                • 4.Qb1#
              • 3...Be6
                • 4.Qb1#
              • 3...Bf7
                • 4.Qb1#
              • 3...Bg8
                • 4.Qb1#
              • 3...Sb2
                • 4.Qxb2#
              • 3...Sc3
                • 4.Qb2#
              • 3...Sc5
                • 4.Qb2#
              • 3...Sb6
                • 4.Qb2#

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