MESON Chess Problem Database

Problem Display
PID: 150084 (7k/1p3Kp1/1P1p2P1/1P1Ppp2/PNp2pp1/2P2r2/8/Q7 w - - 0 1)

Ott, Hans

HM., La Strategie, 1937

7k/1p3Kp1/1P1p2P1/1P1Ppp2/PNp2pp1/2P2r2/8/Q7

#4

9 + 10

15158 Hans Ott Schachprobleme (Kummer) 1986

SOLUTION

  • SOUND
  • Keys
    • 1.Qa2!
      • threat
        • 2.Qxc4
          • threat
            • 3.Qc8#
          • 2...Rxc3
            • 3.Qxc3
              • threat
                • 4.Qc8#
      • 1...Rxc3
        • 2.Qb1
          • threat
            • 3.Qxf5
              • threat
                • 4.Qc8#
                • 4.Qh5#
          • 2...Rc2
            • 3.Qh1+
              • 3...Rh2
                • 4.Qxh2#
            • 3.Sxc2
              • threat
                • 4.Qh1#
          • 2...Rd3
            • 3.Sxd3
              • threat
                • 4.Qh1#
          • 2...Rh3
            • 3.Qxf5
              • threat
                • 4.Qc8#
          • 2...e4
            • 3.Qa1
              • 3...Rc1
                • 4.Qxg7#
              • 3...Rc2
                • 4.Qxg7#
              • 3...Ra3
                • 4.Qxg7#
              • 3...Rb3
                • 4.Qxg7#
              • 3...Rd3
                • 4.Qxg7#
              • 3...Re3
                • 4.Qxg7#
              • 3...Rf3
                • 4.Qxg7#
              • 3...Rg3
                • 4.Qxg7#
              • 3...Rh3
                • 4.Qxg7#
              • 3...e3
                • 4.Qh1#
              • 3...f3
                • 4.Qh1#
              • 3...g3
                • 4.Qh1#
      • 1...Re3
        • 2.Qxc4
          • threat
            • 3.Qc8#
          • 2...Rxc3
            • 3.Qxc3
              • threat
                • 4.Qc8#
      • 1...Rd3
        • 2.Sxd3
          • threat
            • 3.Qh2#
          • 2...g3
            • 3.Qxc4
              • threat
                • 4.Qc8#
            • 3.Qg2
              • threat
                • 4.Qh1#
                • 4.Qh3#
        • 2.Qxc4
          • threat
            • 3.Qc8#
          • 2...Rxc3
            • 3.Qxc3
              • threat
                • 4.Qc8#
        • 2.Qb1
          • threat
            • 3.Sxd3
              • threat
                • 4.Qh1#
          • 2...Rxc3
            • 3.Qxf5
              • threat
                • 4.Qc8#
                • 4.Qh5#
          • 2...Rd1
            • 3.Qxf5
              • threat
                • 4.Qc8#
                • 4.Qh5#
            • 3.Qxd1
              • threat
                • 4.Qh1#
          • 2...Rd2
            • 3.Qh1+
              • 3...Rh2
                • 4.Qxh2#
            • 3.Qxf5
              • threat
                • 4.Qc8#
                • 4.Qh5#
          • 2...Re3
            • 3.Qxf5
              • threat
                • 4.Qc8#
                • 4.Qh5#
          • 2...Rf3
            • 3.Qxf5
              • threat
                • 4.Qc8#
                • 4.Qh5#
          • 2...Rg3
            • 3.Qxf5
              • threat
                • 4.Qc8#
                • 4.Qh5#
          • 2...Rh3
            • 3.Qxf5
              • threat
                • 4.Qc8#
      • 1...Rg3
        • 2.Qxc4
          • threat
            • 3.Qc8#
          • 2...Rxc3
            • 3.Qxc3
              • threat
                • 4.Qc8#
      • 1...Rh3
        • 2.Qxc4
          • threat
            • 3.Qc8#
          • 2...Rxc3
            • 3.Qxc3
              • threat
                • 4.Qc8#
      • 1...e4
        • 2.Qxc4
          • threat
            • 3.Qc8#
          • 2...Rxc3
            • 3.Qxc3
              • threat
                • 4.Qxg7#
                • 4.Qc8#

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