MESON Chess Problem Database

Problem Display
PID: 255480 (4k2K/2p1Bp1p/2P2P1P/4R3/8/1q6/6B1/8 w - - 0 1)

Kalinin, Aleksandr Konstantinovich

Shakhmaty v SSSR, 1971

4k2K/2p1Bp1p/2P2P1P/4R3/8/1q6/6B1/8

#4

7 + 5

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Keys
    • 1.Ra5!
      • threat
        • 2.Ra8+
          • 2...Qb8
            • 3.Rxb8#
      • 1...Qa2
        • 2.Bh3
          • threat
            • 3.Bd7#
          • 2...Qd5
            • 3.Ra8+
              • 3...Qd8
                • 4.Bd7#
                • 4.Rxd8#
          • 2...Qe6
            • 3.Ra8+
              • 3...Qc8
                • 4.Bd7#
                • 4.Rxc8#
          • 2...Qd2
            • 3.Ra8+
              • 3...Qd8
                • 4.Bd7#
                • 4.Rxd8#
            • 3.Rg5
              • threat
                • 4.Rg8#
              • 3...Qxg5
                • 4.Bd7#
              • 3...Qg2
                • 4.Bd7#
      • 1...Qa4
        • 2.Rg5
          • threat
            • 3.Rg8#
          • 2...Qg4
            • 3.Bh3
              • 3...Qxh3
                • 4.Rg8#
              • 3...Qxg5
                • 4.Bd7#
              • 3...Qd1
                • 4.Rg8#
              • 3...Qe2
                • 4.Bd7#
                • 4.Rg8#
              • 3...Qf3
                • 4.Bd7#
                • 4.Rg8#
              • 3...Qf5
                • 4.Rg8#
              • 3...Qh5
                • 4.Bd7#
                • 4.Rg8#
              • 3...Qe6
                • 4.Rg8#
              • 3...Qd7
                • 4.Bxd7#
                • 4.Rg8#
                • 4.cxd7#
              • 3...Qc8
                • 4.Rg8#
              • 3...Qg1
                • 4.Bd7#
              • 3...Qg2
                • 4.Bd7#
              • 3...Qg3
                • 4.Bd7#
              • 3...Qa4
                • 4.Bd7#
                • 4.Rg8#
              • 3...Qb4
                • 4.Bd7#
                • 4.Rg8#
              • 3...Qc4
                • 4.Bd7#
                • 4.Rg8#
              • 3...Qd4
                • 4.Rg8#
              • 3...Qe4
                • 4.Bd7#
                • 4.Rg8#
              • 3...Qf4
                • 4.Bd7#
                • 4.Rg8#
              • 3...Qh4
                • 4.Bd7#
                • 4.Rg8#

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