MESON Chess Problem Database

Problem Display
PID: 32822 (2b1k3/n7/2P2Kn1/8/B2Q4/6B1/8/8 w - - 0 1)

Huggins, Colonel AZ

Source?, 0000

2b1k3/n7/2P2Kn1/8/B2Q4/6B1/8/8

#2

5 + 4

3500 Chess Problems by A. Z. Huggins 1872

SOLUTION

  • SOUND
  • Sets
    • 1...Kf8
      • 2.Qd8#
  • Tries
    • 1.Bc7?
      • threat
        • 2.Qd8#
      • 1...Kf8
        • 2.Qd8#
      • 1...Bd7!
    • 1.Qd7+?
      • 1...Kf8
        • 2.Qf7#
        • 2.Qd8#
      • 1...Bxd7!
    • 1.c7+?
      • 1...Kf8
        • 2.Qd8#
      • 1...Sb5
        • 2.Qd8#
      • 1...Sc6
        • 2.Qd8#
      • 1...Bd7!
  • Keys
    • 1.Qd8+!
      • 1...Kxd8
        • 2.c7#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(d);P-FLIGHT::QAR2(C)
  • Tries
    • Try
      • B(A);
      • Threat
        • QAR1(C)
      • Vars
        • K(d);P-FLIGHT::QAR2(C)
      • Refutation
        • B(c);
    • Try
      • Q(C);CHECK
      • Refutation
        • B(c);XQ(C)
    • Try
      • P(D);CHECK
      • Vars
        • K(d);P-FLIGHT::QAR2(C)
        • S(b);P_SPINS(b)::QAR1(C)
      • Refutation
        • B(c);P_SPINB(c)
  • Actual
    • Q(C);CHECK
    • Vars
      • K(d);P-FLIGHT,XQ(C)::P(D)
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