MESON Chess Problem Database

Problem Display
PID: 278018 (8/8/Q7/1P6/1N6/Kp6/pPb1P3/k7 w - - 0 1)

Jahn, Gunther

Schach, 1986

8/8/Q7/1P6/1N6/Kp6/pPb1P3/k7

#4

6 + 4

6490 yacpdb 2024

SOLUTION

  • SOUND
  • Keys
    • 1.Sxa2!
      • 1...Kb1
        • 2.Sc3+
          • 2...Ka1
            • 3.Kb4+
              • 3...Kxb2
                • 4.Qa3#
      • 1...bxa2
        • 2.Qf6
          • threat
            • 3.b3+
              • 3...Kb1
                • 4.Qb2#
            • 3.b4+
              • 3...Kb1
                • 4.Qb2#
          • 2...Kb1
            • 3.Qf1+
              • 3...Bd1
                • 4.Qxd1#
          • 2...Bb3
            • 3.Qf1+
              • 3...Bd1
                • 4.Qxd1#
            • 3.Kxb3
              • 3...Kb1
                • 4.Qf1#
      • 1...Bb1
        • 2.Sc3
          • threat
            • 3.Kxb3+
              • 3...Ba2+
                • 4.Qxa2#
          • 2...Ba2
            • 3.Qg6
              • 3...Bb1
                • 4.Qxb1#
          • 2...Bc2
            • 3.Kb4+
              • 3...Kxb2
                • 4.Qa3#
      • 1...Bd1
        • 2.Sc3
          • 2...Bc2
            • 3.Kb4+
              • 3...Kxb2
                • 4.Qa3#
      • 1...Bd3
        • 2.exd3
          • threat
            • 3.Qc8
              • threat
                • 4.Qc1#
              • 3...Kb1
                • 4.Qc1#
            • 3.Qc6
              • threat
                • 4.Qh1#
                • 4.Qc1#
              • 3...Kb1
                • 4.Qc1#
            • 3.Qh6
              • threat
                • 4.Qc1#
                • 4.Qh1#
              • 3...Kb1
                • 4.Qc1#
          • 2...Kb1
            • 3.Kxb3
              • 3...Ka1
                • 4.Sc3#
          • 2...bxa2
            • 3.Qa4
              • 3...Kb1
                • 4.Qd1#
      • 1...Be4
        • 2.Sc3
          • threat
            • 3.Kxb3#
          • 2...Bb1
            • 3.Kxb3+
              • 3...Ba2+
                • 4.Qxa2#
          • 2...Bc2
            • 3.Kb4+
              • 3...Kxb2
                • 4.Qa3#
          • 2...Bd5
            • 3.Qa7
              • threat
                • 4.Qg1#
              • 3...Bg2
                • 4.Kxb3#
              • 3...Be4
                • 4.Kxb3#
          • 2...Bb7
            • 3.Qa7
              • threat
                • 4.Qg1#
              • 3...Bg2
                • 4.Kxb3#
              • 3...Be4
                • 4.Kxb3#
      • 1...Bf5
        • 2.Sc3
          • threat
            • 3.Kxb3#
          • 2...Bb1
            • 3.Kxb3+
              • 3...Ba2+
                • 4.Qxa2#
          • 2...Bc2
            • 3.Kb4+
              • 3...Kxb2
                • 4.Qa3#
          • 2...Be6
            • 3.Qa7
              • threat
                • 4.Qg1#
              • 3...Bh3
                • 4.Kxb3#
              • 3...Bf5
                • 4.Kxb3#
          • 2...Bc8
            • 3.Qa7
              • threat
                • 4.Qg1#
              • 3...Bh3
                • 4.Kxb3#
              • 3...Bf5
                • 4.Kxb3#
      • 1...Bh7
        • 2.Sc3
          • threat
            • 3.Kxb3#
          • 2...Bb1
            • 3.Kxb3+
              • 3...Ba2+
                • 4.Qxa2#
          • 2...Bc2
            • 3.Kb4+
              • 3...Kxb2
                • 4.Qa3#
          • 2...Bg8
            • 3.Qa7
              • threat
                • 4.Qg1#
              • 3...Bh7
                • 4.Kxb3#

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