Problem Display
PID: 285410 (k1n5/2QK4/8/8/8/8/8/8 w - - 0 1)

Bogdanov, Evgeny Mikhailovich

Comm., Mat 64, 2000

k1n5/2QK4/8/8/8/8/8/8

#3

2 + 2


3713 Snap 2026
6490 yacpdb 2026

SOLUTION


  • SOUND
  • Sets
    • 1...Sb6+
      • 2.Kc6
        • threat
          • 3.Qb7#
    • 1...Sd6
      • 2.Kc6
        • 2...Sb7
          • 3.Qxb7#
        • 2...Sc4
          • 3.Qb7#
        • 2...Se4
          • 3.Qb7#
        • 2...Sb5
          • 3.Qb7#
        • 2...Sf5
          • 3.Qb7#
        • 2...Sf7
          • 3.Qb7#
        • 2...Sc8
          • 3.Qb7#
        • 2...Se8
          • 3.Qb7#
  • Tries
    • 1.Qc6+?
      • 1...Ka7
        • 2.Kc7
          • threat
            • 3.Qa4#
            • 3.Qb7#
      • 1...Kb8!
  • Keys
    • 1.Kc6!
      • threat
        • 2.Qb7#
      • 1...Sa7+
        • 2.Kb6
          • threat
            • 3.Qxa7#
            • 3.Qb7#
          • 2...Sc8+
            • 3.Qxc8#
      • 1...Se7+
        • 2.Qxe7
          • 2...Kb8
            • 3.Qb7#
      • 1...Sd6
        • 2.Qb6
          • 2...Sb7
            • 3.Qxb7#
          • 2...Sc4
            • 3.Qb7#
          • 2...Se4
            • 3.Qb7#
          • 2...Sb5
            • 3.Qb7#
          • 2...Sf5
            • 3.Qb7#
          • 2...Sf7
            • 3.Qb7#
          • 2...Sc8
            • 3.Qb7#
          • 2...Se8
            • 3.Qb7#

Anticipated by 112418(1974), 248716(1978)

FEATURES


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