MESON Chess Problem Database

Problem Display
PID: 252028 (4bnr1/8/2PN4/P2k2p1/BQ6/6Pp/5p1P/5K2 w - - 0 1)

Isaryanov, Vladimir Petrovich

6th HM., Shakhmaty v SSSR, 1965

4bnr1/8/2PN4/P2k2p1/BQ6/6Pp/5p1P/5K2

#4

8 + 7

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Keys
    • 1.Sf5!
      • threat
        • 2.Qd6+
          • 2...Ke4
            • 3.Bc2+
              • 3...Kf3
                • 4.Qd1#
      • 1...Ke5
        • 2.Qd6+
          • 2...Ke4
            • 3.Bc2+
              • 3...Kf3
                • 4.Qd1#
          • 2...Kxf5
            • 3.Bc2+
              • 3...Kg4
                • 4.Qd1#
      • 1...Ke6
        • 2.Qe7+
          • 2...Kd5
            • 3.Bb3+
              • 3...Kxc6
                • 4.Sd4#
          • 2...Kxf5
            • 3.Bc2+
              • 3...Kg4
                • 4.Qe2#
      • 1...Rg6
        • 2.Qd4+
          • 2...Ke6
            • 3.Bb3+
              • 3...Kxf5
                • 4.g4#
      • 1...Se6
        • 2.Bb3+
          • 2...Ke5
            • 3.Qd6+
              • 3...Ke4
                • 4.Qd5#
              • 3...Kxf5
                • 4.Qxe6#
              • 3...Kf6
                • 4.Qxe6#
          • 2...Kxc6
            • 3.Qb6+
              • 3...Kd7
                • 4.Bxe6#
            • 3.Bxe6
              • threat
                • 4.Qb6#
              • 3...Kc7
                • 4.Qb6#
      • 1...g4
        • 2.Qd6+
          • 2...Ke4
            • 3.Bc2+
              • 3...Kf3
                • 4.Qa3#
                • 4.Qf4#
                • 4.Qd1#
                • 4.Qd3#
                • 4.Qd5#

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