MESON Chess Problem Database

Problem Display
PID: 253534 (3Q4/p7/8/5P2/1nrNPpK1/1N1pkP2/r4p2/4nB2 w - - 0 1)

Kalinin, Aleksandr Konstantinovich

Nauka i zizn, 1969

3Q4/p7/8/5P2/1nrNPpK1/1N1pkP2/r4p2/4nB2

#4

8 + 9

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Keys
    • 1.Qd6!
      • threat
        • 2.Qxf4#
      • 1...Sg2
        • 2.f6
          • threat
            • 3.Sf5#
          • 2...Ra5
            • 3.Sc2+
              • 3...Rxc2
                • 4.Qd4#
              • 3...Sxc2
                • 4.Qxd3#
              • 3...dxc2
                • 4.Qd2#
          • 2...Rc5
            • 3.Sc2+
              • 3...Raxc2
                • 4.Qd4#
              • 3...Rcxc2
                • 4.Qd4#
              • 3...Sxc2
                • 4.Qxd3#
              • 3...dxc2
                • 4.Qxc5#
                • 4.Qd2#
                • 4.Qd4#
            • 3.Sf5+
              • 3...Rxf5
                • 4.Qd4#
            • 3.Qxc5
              • threat
                • 4.Sc2#
                • 4.Se2#
                • 4.Sb5#
                • 4.Sf5#
                • 4.Sc6#
                • 4.Se6#
      • 1...Sd5
        • 2.exd5
          • threat
            • 3.Qxf4#
            • 3.Qe5#
            • 3.Qe7#
            • 3.Qe6#
          • 2...Rxd4
            • 3.Qe5+
              • 3...Re4
                • 4.Qxe4#
            • 3.Qe7+
              • 3...Re4
                • 4.Qxe4#
            • 3.Qe6+
              • 3...Re4
                • 4.Qxe4#

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