MESON Chess Problem Database

Problem Display
PID: 59027 (3r1b2/3p2p1/1N1P2B1/1PP1kPp1/3p1p1p/P2p4/4nN1K/8 w - - 0 1)

Gulyaev, Aleksandr Pavlovich (aka Grin, AP)

3rd Prize, Shakhmaty v SSSR, 1939

3r1b2/3p2p1/1N1P2B1/1PP1kPp1/3p1p1p/P2p4/4nN1K/8

#4

9 + 11

1099 WCSC 1983
5396 World Chess Solving Championship 1977-1996 1997

SOLUTION

  • SOUND
  • Keys
    • 1.a4!
      • threat
        • 2.Sc4+
          • 2...Kd5
            • 3.Bf7+
              • 3...Kxc5
                • 4.Sxd3#
      • 1...Bxd6
        • 2.Sc4+
          • 2...Kd5
            • 3.Bf7+
              • 3...Kxc5
                • 4.Sxd3#
          • 2...Kf6
            • 3.cxd6
              • threat
                • 4.Se4#
                • 4.Sg4#
      • 1...f3
        • 2.Sxd3+
          • 2...Ke4
            • 3.f6+
              • 3...Ke3
                • 4.Sc4#
      • 1...Re8
        • 2.Sxd7+
          • 2...Kd5
            • 3.Bf7+
              • 3...Re6
                • 4.Bxe6#
      • 1...Sc1
        • 2.Kg2
          • threat
            • 3.Sg4+
              • 3...Ke4
                • 4.f6#
            • 3.Kf3
              • threat
                • 4.Sg4#
              • 3...g4+
                • 4.Sxg4#
              • 3...Kf6
                • 4.Sg4#
          • 2...f3+
            • 3.Kxf3
              • threat
                • 4.Sg4#
              • 3...g4+
                • 4.Sxg4#
              • 3...Kf6
                • 4.Sg4#
          • 2...g4
            • 3.Sxg4+
              • 3...Ke4
                • 4.f6#
      • 1...d2
        • 2.Sc4+
          • 2...Kd5
            • 3.Bf7+
              • 3...Kxc5
                • 4.Sd3#

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