MESON Chess Problem Database

Problem Display
PID: 246975 (k7/rp4K1/p2Bp1p1/4P3/4Q1b1/1R4P1/8/1n4b1 w - - 0 1)

Popandopulo, Avenir Nikolaevich

2nd Prize, Konkurs Estonskoi, 1957

k7/rp4K1/p2Bp1p1/4P3/4Q1b1/1R4P1/8/1n4b1

#4

6 + 9

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Keys
    • 1.Qh1!
      • threat
        • 2.Qh8#
      • 1...Bh2
        • 2.Kg8
          • threat
            • 3.Qc6
              • threat
                • 4.Qe8#
                • 4.Qc8#
              • 3...bxc6
                • 4.Rb8#
          • 2...Bf3
            • 3.Rxf3
              • threat
                • 4.Rf8#
            • 3.Qxf3
              • threat
                • 4.Qf8#
          • 2...a5
            • 3.Qc6
              • threat
                • 4.Qe8#
                • 4.Qc8#
              • 3...bxc6
                • 4.Rb8#
              • 3...Ra6
                • 4.Qxb7#
      • 1...Bh3
        • 2.Rf3
          • threat
            • 3.Rf8#
          • 2...b5+
            • 3.Rf7+
              • 3...Rb7
                • 4.Qxb7#
              • 3...Bg2
                • 4.Qh8#
          • 2...b6+
            • 3.Rf7+
              • 3...Rb7
                • 4.Qxb7#
              • 3...Bg2
                • 4.Qh8#
          • 2...Bb6
            • 3.Rf8+
              • 3...Bd8
                • 4.Rxd8#
      • 1...Bh5
        • 2.Rf3
          • threat
            • 3.Rf8#
          • 2...b5+
            • 3.Rf7+
              • 3...Rb7
                • 4.Qxb7#
              • 3...Bf3
                • 4.Qh8#
          • 2...b6+
            • 3.Rf7+
              • 3...Rb7
                • 4.Qxb7#
              • 3...Bf3
                • 4.Qh8#
          • 2...Bb6
            • 3.Rf8+
              • 3...Bd8
                • 4.Rxd8#
          • 2...g5
            • 3.Rf8+
              • 3...Be8
                • 4.Rxe8#

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