MESON Chess Problem Database

Problem Display
PID: 138458 (R7/2kp4/8/3P4/NK2B3/2B5/1Q3P2/8 w - - 0 1)

Quah, James

British Chess Magazine, 1992

R7/2kp4/8/3P4/NK2B3/2B5/1Q3P2/8

#2

8 + 2

14772 Creative and Imaginative Chess Concepts 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Kb7
      • 2.d6#
  • Tries
    • 1.Be1?
      • 1...Kb7
        • 2.d6#
      • 1...d6
        • 2.Qg7#
      • 1...Kd6!
    • 1.Bd2?
      • 1...Kb7
        • 2.d6#
      • 1...d6
        • 2.Qg7#
      • 1...Kd6!
    • 1.Be5+?
      • 1...Kb7
        • 2.d6#
      • 1...d6!
    • 1.Bf6?
      • 1...Kd6
        • 2.Qe5#
      • 1...Kb7
        • 2.d6#
      • 1...d6!
    • 1.Bg7?
      • 1...Kd6
        • 2.Qe5#
      • 1...Kb7
        • 2.d6#
      • 1...d6!
  • Keys
    • 1.Bh8!
      • 1...Kd6
        • 2.Qe5#
      • 1...Kb7
        • 2.d6#
      • 1...d6
        • 2.Qg7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::B(F)+P(G)
  • Tries
    • Try
      • B(C);
      • Vars
        • K(a);P-FLIGHT::B(F)+P(G)
        • P(b);OGATEB,SBLOCK::QAR(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(C);
      • Vars
        • K(a);P-FLIGHT::B(F)+P(G)
        • P(b);OGATEB,SBLOCK::QAR(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(C);CHECK
      • Vars
        • K(a);P-FLIGHT::B(F)+P(G)
      • Refutation
        • P(b);P_SPINP(b)
    • Try
      • B(C);
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
        • K(a);P-FLIGHT::B(F)+P(G)
      • Refutation
        • P(b);
    • Try
      • B(C);
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
        • K(a);P-FLIGHT::B(F)+P(G)
      • Refutation
        • P(b);
  • Actual
    • B(C);
    • Vars
      • K(a);S_FLIGHT::QAB1(A)
      • K(a);P-FLIGHT::B(F)+P(G)
      • P(b);OGATEB,SBLOCK::QAR(A)
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