MESON Chess Problem Database

Problem Display
PID: 257338 (8/8/8/pKpQ4/8/3p4/1N6/k7 w - - 0 1)

Hultberg, Gustav Herbert

Springaren, 1991

8/8/8/pKpQ4/8/3p4/1N6/k7

#3

3 + 4

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Sxd3?
      • threat
        • 2.Qg2
          • threat
            • 3.Qb2#
          • 2...Kb1
            • 3.Qb2#
        • 2.Qb3
          • threat
            • 3.Qb2#
        • 2.Qe5+
          • 2...Kb1
            • 3.Qb2#
          • 2...Ka2
            • 3.Qb2#
      • 1...Kb1
        • 2.Qg2
          • threat
            • 3.Qb2#
          • 2...Ka1
            • 3.Qb2#
        • 2.Qb3+
          • 2...Ka1
            • 3.Qb2#
      • 1...a4
        • 2.Qe5+
          • 2...Kb1
            • 3.Qb2#
          • 2...Ka2
            • 3.Qb2#
      • 1...c4!
    • 1.Sc4?
      • threat
        • 2.Qe5+
          • 2...Kb1
            • 3.Qb2#
          • 2...Ka2
            • 3.Qb2#
      • 1...Ka2
        • 2.Qe5
          • threat
            • 3.Qb2#
          • 2...Kb1
            • 3.Qb2#
          • 2...Kb3
            • 3.Qb2#
      • 1...Kb1!
    • 1.Qe5?
      • threat
        • 2.Sd1+
          • 2...Kb1
            • 3.Qb2#
          • 2...Ka2
            • 3.Qb2#
        • 2.Sxd3+
          • 2...Kb1
            • 3.Qb2#
          • 2...Ka2
            • 3.Qb2#
        • 2.Sa4+
          • 2...Kb1
            • 3.Qb2#
          • 2...Ka2
            • 3.Qb2#
        • 2.Sc4+
          • 2...Kb1
            • 3.Qb2#
          • 2...Ka2
            • 3.Qb2#
      • 1...Ka2
        • 2.Sd1
          • threat
            • 3.Qb2#
          • 2...Kb1
            • 3.Qb2#
          • 2...Ka3
            • 3.Qb2#
          • 2...Kb3
            • 3.Qb2#
        • 2.Sxd3
          • threat
            • 3.Qb2#
          • 2...Kb1
            • 3.Qb2#
          • 2...Ka3
            • 3.Qb2#
          • 2...Kb3
            • 3.Qb2#
        • 2.Sa4
          • threat
            • 3.Qb2#
          • 2...Kb1
            • 3.Qb2#
          • 2...Ka3
            • 3.Qb2#
          • 2...Kb3
            • 3.Qb2#
        • 2.Sc4
          • threat
            • 3.Qb2#
          • 2...Kb1
            • 3.Qb2#
          • 2...Kb3
            • 3.Qb2#
      • 1...d2
        • 2.Sd1+
          • 2...Kb1
            • 3.Qb2#
          • 2...Ka2
            • 3.Qb2#
        • 2.Sd3+
          • 2...Kb1
            • 3.Qb2#
          • 2...Ka2
            • 3.Qb2#
        • 2.Sa4+
          • 2...Kb1
            • 3.Qb2#
          • 2...Ka2
            • 3.Qb2#
        • 2.Sc4+
          • 2...Kb1
            • 3.Qb2#
          • 2...Ka2
            • 3.Qb2#
      • 1...a4
        • 2.Sd1+
          • 2...Kb1
            • 3.Qb2#
          • 2...Ka2
            • 3.Qb2#
        • 2.Sxd3+
          • 2...Kb1
            • 3.Qb2#
          • 2...Ka2
            • 3.Qb2#
        • 2.Sxa4+
          • 2...Kb1
            • 3.Qb2#
          • 2...Ka2
            • 3.Qb2#
        • 2.Sc4+
          • 2...Kb1
            • 3.Qb2#
          • 2...Ka2
            • 3.Qb2#
      • 1...c4
        • 2.Sxc4+
          • 2...Kb1
            • 3.Qb2#
          • 2...Ka2
            • 3.Qb2#
      • 1...Kb1!
  • Keys
    • 1.Qb3!
      • threat
        • 2.Sd1
          • threat
            • 3.Qb2#
        • 2.Sxd3
          • threat
            • 3.Qb2#
        • 2.Sa4
          • threat
            • 3.Qb2#
        • 2.Sc4
          • threat
            • 3.Qb2#
      • 1...Kb1
        • 2.Sxd3+
          • 2...Ka1
            • 3.Qb2#
      • 1...d2
        • 2.Sd1
          • threat
            • 3.Qb2#
      • 1...a4
        • 2.Sxa4
          • threat
            • 3.Qb2#
      • 1...c4
        • 2.Sxc4
          • threat
            • 3.Qb2#

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