MESON Chess Problem Database

Problem Display
PID: 8010 (k7/b7/1pK5/8/8/8/8/2Q5 w - - 0 1)

Rice, John Michael

Chess Problems for Solving, 1995

k7/b7/1pK5/8/8/8/8/2Q5

#2

2 + 3

3713 Snap 2001

SOLUTION

  • SOUND
  • Tries
    • 1.Qa3?
      • 1...Kb8
        • 2.Qf8#
      • 1...b5!
    • 1.Qa1?
      • 1...Kb8
        • 2.Qh8#
      • 1...b5!
  • Keys
    • 1.Qh1!
      • threat
        • 2.Kc7#
      • 1...Kb8
        • 2.Qh8#
      • 1...Bb8
        • 2.Kxb6#

Anticipated by 38393(1877), 76886(1947)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);P_PINB(b)
      • Vars
        • K(c);N_SPINB(b),P-FLIGHT::QAR(A)
      • Refutation
        • P(a);
    • Try
      • Q(A);P_PINB(b)
      • Vars
        • K(c);N_SPINB(b),P-FLIGHT::QAR(A)
      • Refutation
        • P(a);
  • Actual
    • Q(A);
    • Threat
      • QAB(A)+K(B)
    • Vars
      • K(c);P-FLIGHT::QAR(A)
      • B(b);SBLOCK::QAB(A)+K(B),XP(a)
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