MESON Chess Problem Database

Problem Display
PID: 252456 (2K5/1N6/k7/3Rp3/4P3/8/rP1P1B2/1n6 w - - 0 1)

Ahlheim, Karl-Heinz

1st Comm., Schweizerische Schachzeitung, 1966

2K5/1N6/k7/3Rp3/4P3/8/rP1P1B2/1n6

#4

7 + 4

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Keys
    • 1.Kb8!
      • threat
        • 2.b3
          • threat
            • 3.Rd6+
              • 3...Kb5
                • 4.Rb6#
      • 1...Ra4
        • 2.b4
          • threat
            • 3.b5#
          • 2...Sa3
            • 3.Ba7
              • 3...Rxb4
                • 4.Ra5#
              • 3...Ra5
                • 4.Rxa5#
              • 3...Sb1
                • 4.b5#
              • 3...Sc2
                • 4.b5#
              • 3...Sc4
                • 4.b5#
              • 3...Sb5
                • 4.Sc5#
          • 2...Sc3
            • 3.dxc3
              • threat
                • 4.b5#
              • 3...Rxb4
                • 4.Ra5#
              • 3...Ra5
                • 4.Rxa5#
      • 1...Sc3
        • 2.bxc3
          • threat
            • 3.c4
              • threat
                • 4.Rd6#
              • 3...Rxd2
                • 4.Ra5#
              • 3...Rb2
                • 4.Ra5#
          • 2...Ra1
            • 3.c4
              • threat
                • 4.Rd6#
              • 3...Rb1
                • 4.Ra5#
          • 2...Ra3
            • 3.c4
              • threat
                • 4.Rd6#
              • 3...Rb3
                • 4.Ra5#
              • 3...Rd3
                • 4.Ra5#
          • 2...Ra4
            • 3.c4
              • threat
                • 4.Rd6#
              • 3...Rxc4
                • 4.Ra5#
              • 3...Rb4
                • 4.Ra5#
        • 2.dxc3
          • threat
            • 3.c4
              • threat
                • 4.Rd6#
              • 3...Rxb2
                • 4.Ra5#
          • 2...Ra1
            • 3.b4
              • threat
                • 4.b5#
              • 3...Rb1
                • 4.Ra5#
              • 3...Ra5
                • 4.Rxa5#
            • 3.c4
              • threat
                • 4.Rd6#
              • 3...Rd1
                • 4.Ra5#
          • 2...Ra3
            • 3.b4
              • threat
                • 4.b5#
              • 3...Rb3
                • 4.Ra5#
              • 3...Ra5
                • 4.Rxa5#
            • 3.c4
              • threat
                • 4.Rd6#
              • 3...Rb3
                • 4.Ra5#
              • 3...Rd3
                • 4.Ra5#
          • 2...Ra4
            • 3.b4
              • threat
                • 4.b5#
              • 3...Rxb4
                • 4.Ra5#
              • 3...Ra5
                • 4.Rxa5#
            • 3.c4
              • threat
                • 4.Rd6#
              • 3...Rxc4
                • 4.Ra5#
              • 3...Rb4
                • 4.Ra5#

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