MESON Chess Problem Database

Problem Display
PID: 253982 (k1K5/P1p2NQ1/2P4P/4b3/1P3P2/1N2P3/8/R7 w - - 0 1)

Koller, Paul

Schach, 1966

k1K5/P1p2NQ1/2P4P/4b3/1P3P2/1N2P3/8/R7

#3

11 + 3

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bd6
      • 2.Sxd6
        • 2...cxd6
          • 3.Qb7#
  • Tries
    • 1.Qg5?
      • 1...Bxa1
        • 2.Sxa1
          • 2...Kxa7
            • 3.Qa5#
        • 2.Qb5
          • threat
            • 3.Qb7#
            • 3.Qb8#
          • 2...Kxa7
            • 3.Qa5#
            • 3.Qb7#
      • 1...Bxf4
        • 2.Qb5
          • threat
            • 3.Qb7#
            • 3.Qb8#
      • 1...Bb2
        • 2.Qb5
          • threat
            • 3.Qb7#
            • 3.Qb8#
      • 1...Bc3
        • 2.Qb5
          • threat
            • 3.Qb7#
            • 3.Qb8#
      • 1...Bd6
        • 2.Qb5
          • threat
            • 3.Qb7#
            • 3.Qb8#
      • 1...Bf6
        • 2.Qb5
          • threat
            • 3.Qb7#
            • 3.Qb8#
      • 1...Bg7
        • 2.Qb5
          • threat
            • 3.Qb7#
            • 3.Qb8#
      • 1...Bh8
        • 2.Qb5
          • threat
            • 3.Qb7#
            • 3.Qb8#
      • 1...Bd4!
    • 1.Qg8?
      • threat
        • 2.Kd7#
      • 1...Bd6
        • 2.Kd7+
          • 2...Bf8
            • 3.Qxf8#
        • 2.Sxd6
          • 2...cxd6
            • 3.Kc7#
            • 3.Kd7#
      • 1...Bf6
        • 2.Kxc7+
          • 2...Bd8+
            • 3.Qxd8#
        • 2.Kd7+
          • 2...Bd8
            • 3.Qxd8#
      • 1...Bg7
        • 2.Kxc7+
          • 2...Bf8
            • 3.Qxf8#
        • 2.Kd7+
          • 2...Bf8
            • 3.Qxf8#
      • 1...Bxa1!
  • Keys
    • 1.Sa5!
      • threat
        • 2.Sxe5
          • 2...Kxa7
            • 3.Sac4#
        • 2.Qxe5
          • 2...Kxa7
            • 3.Sc4#
        • 2.fxe5
          • 2...Kxa7
            • 3.Sc4#
      • 1...Kxa7
        • 2.Sc4+
          • 2...Bxa1
            • 3.Qxa1#
      • 1...Bxa1
        • 2.Qxa1
          • 2...Kxa7
            • 3.Sc4#
      • 1...Bxf4
        • 2.exf4
          • 2...Kxa7
            • 3.Sc4#
      • 1...Bxg7
        • 2.hxg7
          • 2...Kxa7
            • 3.Sc4#
      • 1...Bb2
        • 2.Qxb2
          • 2...Kxa7
            • 3.Sc4#
      • 1...Bc3
        • 2.Qxc3
          • 2...Kxa7
            • 3.Sc4#
      • 1...Bd4
        • 2.exd4
          • 2...Kxa7
            • 3.Sc4#
      • 1...Bd6
        • 2.Sxd6
          • 2...Kxa7
            • 3.Sac4#
          • 2...cxd6
            • 3.Qb7#
      • 1...Bf6
        • 2.Qxf6
          • 2...Kxa7
            • 3.Sc4#

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