MESON Chess Problem Database

Problem Display
PID: 235992 (4R3/8/3p2p1/1Qpk4/4p1K1/6B1/P7/8 w - - 0 1)

Koller, Paul

Freie Presse, 1968

4R3/8/3p2p1/1Qpk4/4p1K1/6B1/P7/8

#3

5 + 5

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...e3
      • 2.Re4
        • threat
          • 3.Qb7#
        • 2...Kxe4
          • 3.Qc4#
  • Tries
    • 1.Kg5?
      • 1...e3
        • 2.Rxe3
          • 2...Kd4
            • 3.Qd3#
      • 1...Kd4!
    • 1.Rd8?
      • threat
        • 2.Rxd6#
      • 1...Ke6
        • 2.Qb7
          • threat
            • 3.Rxd6#
          • 2...Kf6
            • 3.Rxd6#
          • 2...d5
            • 3.Rd6#
      • 1...e3
        • 2.Rxd6+
          • 2...Ke4
            • 3.Qd3#
            • 3.Qc4#
            • 3.Qc6#
            • 3.Qe8#
            • 3.Qb1#
            • 3.Qb7#
      • 1...Kd4!
    • 1.Qa4?
      • threat
        • 2.Qxe4#
      • 1...e3
        • 2.Qe4#
      • 1...c4!
  • Keys
    • 1.Bf4!
      • threat
        • 2.Rxe4
          • threat
            • 3.Qb7#
          • 2...Kxe4
            • 3.Qc4#
      • 1...Kd4
        • 2.Rxe4+
          • 2...Kc3
            • 3.Qb3#
          • 2...Kxe4
            • 3.Qc4#
          • 2...Kd5
            • 3.Qb7#
      • 1...e3
        • 2.Re4
          • threat
            • 3.Qb7#
          • 2...Kxe4
            • 3.Qc4#

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