MESON Chess Problem Database

Problem Display
PID: 64728 (K3Q3/3N4/k7/1r6/3n4/8/8/5B2 w - - 0 1)

Kipping, Cyril Stanley

Chess, 1947

K3Q3/3N4/k7/1r6/3n4/8/8/5B2

#2

4 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Qb8?
      • threat
        • 2.Qa7#
        • 2.Qb6#
      • 1...Se2
        • 2.Qa7#
      • 1...Sc6
        • 2.Qxb5#
        • 2.Qb6#
      • 1...Ka5!
    • 1.Qd8?
      • threat
        • 2.Sc5#
        • 2.Sb8#
        • 2.Qb6#
      • 1...Sb3
        • 2.Sb8#
        • 2.Qb6#
      • 1...Sc6
        • 2.Sc5#
        • 2.Qb6#
      • 1...Se6
        • 2.Sb8#
        • 2.Qb6#
      • 1...Se2!
  • Keys
    • 1.Qe3!
      • threat
        • 2.Qa3#
      • 1...Ka5
        • 2.Qa3#
      • 1...Sc2
        • 2.Qb6#
        • 2.Qa7#
      • 1...Se2
        • 2.Qa7#
      • 1...Sb3
        • 2.Qb6#
        • 2.Qa7#
      • 1...Sc6
        • 2.Qb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);N_SPINR(b)::QAR1(D)
      • Refutation
        • K(c);N_SPINR(b),P-FLIGHT
    • Try
      • Q(D);
      • Threat
        • DUALS(3)
      • Refutation
        • S(a);N_SPINR(b)
  • Actual
    • Q(D);
    • Threat
      • QAR(D)
    • Vars
      • K(c);N_SPINR(b),P-FLIGHT::QAR2(D)
      • S(a);N_SPINR(b),OGATE::QAR1(D)
      • S(a);OGATE::QAR1(D)
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Developed and maintained by Brian Stephenson.
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