MESON Chess Problem Database

Problem Display
PID: 255252 (8/8/8/3b4/7n/K7/1p6/kNR5 w - - 0 1)

Speckmann, Werner

Schach, 1991

8/8/8/3b4/7n/K7/1p6/kNR5

#5

3 + 4

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Keys
    • 1.Rg1!
      • threat
        • 2.Sd2+
          • 2...b1Q
            • 3.Rxb1#
          • 2...b1S+
            • 3.Rxb1#
          • 2...b1B
            • 3.Rxb1#
          • 2...b1R
            • 3.Rxb1#
        • 2.Sc3+
          • 2...b1Q
            • 3.Rxb1#
          • 2...b1S+
            • 3.Rxb1#
          • 2...b1B
            • 3.Rxb1#
          • 2...b1R
            • 3.Rxb1#
      • 1...Sf3
        • 2.Rd1
          • threat
            • 3.Sd2+
              • 3...b1Q
                • 4.Rxb1#
              • 3...b1S+
                • 4.Rxb1#
              • 3...b1B
                • 4.Rxb1#
              • 3...b1R
                • 4.Rxb1#
            • 3.Sc3+
              • 3...b1Q
                • 4.Rxb1#
              • 3...b1S+
                • 4.Rxb1#
              • 3...b1B
                • 4.Rxb1#
              • 3...b1R
                • 4.Rxb1#
          • 2...Ba2
            • 3.Sd2+
              • 3...b1Q
                • 4.Rxb1+
                  • 4...Bxb1
                    • 5.Sb3#
              • 3...b1S+
                • 4.Rxb1+
                  • 4...Bxb1
                    • 5.Sb3#
              • 3...b1B
                • 4.Rxb1+
                  • 4...Bxb1
                    • 5.Sb3#
              • 3...b1R
                • 4.Rxb1+
                  • 4...Bxb1
                    • 5.Sb3#
          • 2...Bb3
            • 3.Kxb3
              • threat
                • 4.Sd2+
                  • 4...b1Q+
                    • 5.Rxb1#
                  • 4...b1S
                    • 5.Rxb1#
                  • 4...b1B
                    • 5.Rxb1#
                  • 4...b1R+
                    • 5.Rxb1#
                • 4.Sa3+
                  • 4...b1Q+
                    • 5.Rxb1#
                  • 4...b1S
                    • 5.Sc2#
                    • 5.Rxb1#
                  • 4...b1B
                    • 5.Sc2#
                    • 5.Rxb1#
                  • 4...b1R+
                    • 5.Rxb1#
                • 4.Sc3+
                  • 4...b1Q+
                    • 5.Rxb1#
                  • 4...b1S
                    • 5.Rxb1#
                  • 4...b1B
                    • 5.Rxb1#
                  • 4...b1R+
                    • 5.Rxb1#
              • 3...Sd2+
                • 4.Sxd2+
                  • 4...b1Q+
                    • 5.Rxb1#
                  • 4...b1S
                    • 5.Rxb1#
                  • 4...b1B
                    • 5.Rxb1#
                  • 4...b1R+
                    • 5.Rxb1#
                • 4.Rxd2
                  • 4...Kxb1
                    • 5.Rd1#
              • 3...Sd4+
                • 4.Rxd4
                  • 4...Kxb1
                    • 5.Rd1#
          • 2...Be4
            • 3.Sd2+
              • 3...b1S+
                • 4.Rxb1+
                  • 4...Bxb1
                    • 5.Sb3#

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