MESON Chess Problem Database

Problem Display
PID: 33738 (q7/2n5/8/1p1p1Q1p/R1b3p1/b7/ppNK4/1k6 w - - 0 1)

Siers, Theodor

2nd Prize, Problem (Zagreb), 1959

q7/2n5/8/1p1p1Q1p/R1b3p1/b7/ppNK4/1k6

#5

4 + 11

3389 Belgian Solving Championship 2003
5405 Chess Solving Yearbook 2003 2004

SOLUTION

  • SOUND
  • Keys
    • 1.Qf2!
      • threat
        • 2.Qe1#
      • 1...Qa5+
        • 2.Rxa5
          • threat
            • 3.Qe1#
          • 2...Bb4+
            • 3.Sxb4
              • threat
                • 4.Qe1#
              • 3...Ka1
                • 4.Sc2+
                  • 4...Kb1
                    • 5.Qe1#
              • 3...Be2
                • 4.Qe1+
                  • 4...Bd1
                    • 5.Qxd1#
                • 4.Qg1+
                  • 4...Bd1
                    • 5.Qxd1#
                  • 4...Bf1
                    • 5.Qxf1#
              • 3...Bb3
                • 4.Qe1+
                  • 4...Bd1
                    • 5.Qxd1#
                • 4.Qg1+
                  • 4...Bd1
                    • 5.Qxd1#
                • 4.Qf1+
                  • 4...Bd1
                    • 5.Qxd1#
      • 1...Bb4+
        • 2.Sxb4
          • threat
            • 3.Qe1#
          • 2...Qe8
            • 3.Qg1+
              • 3...Bf1
                • 4.Qxf1+
                  • 4...Qe1+
                    • 5.Qxe1#
      • 1...a1Q
        • 2.Qf5
          • threat
            • 3.Sb4+
              • 3...Bd3
                • 4.Qxd3#
          • 2...Qxa4
            • 3.Sb4+
              • 3...Bd3
                • 4.Qxd3+
                  • 4...Qc2+
                    • 5.Qxc2#
          • 2...Qc6
            • 3.Sxa3+
              • 3...Ka2
                • 4.Sxb5+
                  • 4...Kb3
                    • 5.Qc2#
            • 3.Sb4+
              • 3...Bd3
                • 4.Qxd3+
                  • 4...Qc2+
                    • 5.Qxc2#
          • 2...Qa2
            • 3.Sxa3+
              • 3...Ka1
                • 4.Qb1+
                  • 4...Qxb1
                    • 5.Sc2#
          • 2...Qc8
            • 3.Sxa3+
              • 3...Ka2
                • 4.Sxb5+
                  • 4...Kb3
                    • 5.Qc2#
          • 2...Qe8
            • 3.Sxa3+
              • 3...Ka2
                • 4.Sxb5+
                  • 4...Kb3
                    • 5.Qc2#
          • 2...Qf8
            • 3.Sxa3+
              • 3...Ka2
                • 4.Sxb5+
                  • 4...Kb3
                    • 5.Qc2#
                  • 4...Qa3
                    • 5.Rxa3#
          • 2...Bd3
            • 3.Qxd3
              • threat
                • 4.Sb4#
              • 3...Qxa4
                • 4.Sb4+
                  • 4...Qc2+
                    • 5.Qxc2#
              • 3...Qc6
                • 4.Sxa3+
                  • 4...Ka2
                    • 5.Sxb5#
                • 4.Sb4+
                  • 4...Qc2+
                    • 5.Qxc2#
                • 4.Qf1+
                  • 4...Ka2
                    • 5.Rxa3#
          • 2...d4
            • 3.Sb4+
              • 3...Qe4
                • 4.Qxe4+
                  • 4...Bd3
                    • 5.Qxd3#
                    • 5.Qe1#
                  • 4...d3
                    • 5.Qh1#
                    • 5.Qe1#
      • 1...a1S
        • 2.Qe1+
          • 2...Ka2
            • 3.Sb4+
              • 3...Kb3
                • 4.Qd1+
                  • 4...Sc2
                    • 5.Qxc2#
      • 1...a1R
        • 2.Qf5
          • threat
            • 3.Sb4+
              • 3...Bd3
                • 4.Qxd3#
          • 2...Qxa4
            • 3.Sb4+
              • 3...Bd3
                • 4.Qxd3+
                  • 4...Qc2+
                    • 5.Qxc2#
          • 2...Qc6
            • 3.Sxa3+
              • 3...Ka2
                • 4.Sxb5+
                  • 4...Kb3
                    • 5.Qc2#
            • 3.Sb4+
              • 3...Bd3
                • 4.Qxd3+
                  • 4...Qc2+
                    • 5.Qxc2#
          • 2...Qc8
            • 3.Sxa3+
              • 3...Ka2
                • 4.Sxb5+
                  • 4...Kb3
                    • 5.Qc2#
          • 2...Qe8
            • 3.Sxa3+
              • 3...Ka2
                • 4.Sxb5+
                  • 4...Kb3
                    • 5.Qc2#
          • 2...Qf8
            • 3.Sxa3+
              • 3...Ka2
                • 4.Sxb5+
                  • 4...Kb3
                    • 5.Qc2#
                  • 4...Qa3
                    • 5.Rxa3#
          • 2...Bd3
            • 3.Qxd3
              • threat
                • 4.Sb4#
              • 3...Qxa4
                • 4.Sb4+
                  • 4...Qc2+
                    • 5.Qxc2#
              • 3...Qc6
                • 4.Sxa3+
                  • 4...Ka2
                    • 5.Sxb5#
                • 4.Sb4+
                  • 4...Qc2+
                    • 5.Qxc2#
                • 4.Qf1+
                  • 4...Ka2
                    • 5.Rxa3#
          • 2...d4
            • 3.Sb4+
              • 3...Qe4
                • 4.Qxe4+
                  • 4...Bd3
                    • 5.Qxd3#
                    • 5.Qe1#
                  • 4...d3
                    • 5.Qh1#
                    • 5.Qe1#

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