MESON Chess Problem Database

Problem Display
PID: 270584 (1r2b3/RP6/1P1k1P2/2p2B2/5P2/r2P1Q1K/7B/8 w - - 0 1)

Westbury, Eric Ernest

Birmingham Weekly Mercury, 1900

1r2b3/RP6/1P1k1P2/2p2B2/5P2/r2P1Q1K/7B/8

#2

10 + 5

17417 Westbury Scrapbooks 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Rc8
      • 2.bxc8S#
  • Tries
    • 1.Be6?
      • threat
        • 2.Qd5#
        • 2.f5#
      • 1...Rxd3
        • 2.f5#
      • 1...c4
        • 2.Qd5#
      • 1...Ra2
        • 2.Qd5#
      • 1...Ra4
        • 2.Qd5#
      • 1...Bc6
        • 2.f5#
      • 1...Kxe6!
  • Keys
    • 1.Bd7!
      • threat
        • 2.Qc6#
      • 1...Bxd7+
        • 2.f5#
      • 1...Kxd7
        • 2.Qd5#
      • 1...Rxd3
        • 2.Qxd3#
      • 1...Rc8
        • 2.bxc8S#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(d);OGATE::PXR(d)=S
  • Tries
    • Try
      • B(F);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);P_PINQ(C),XP(B)::B(A)+P(E)
        • P(b);::QAR1(C)
        • R(a);::QAR1(C)
        • B(e);::B(A)+P(E)
      • Refutation
        • K(c);P-FLIGHT,XB(F)
  • Actual
    • B(F);
    • Threat
      • QAR1(C)
    • Vars
      • B(e);CHECK,SBLOCK,XB(F)::B(A)+P(E)
      • K(c);N_GUARD,P-FLIGHT,XB(F)::QAR2(C)
      • R(a);OGATE,P_PINQ(C),XP(B)::QAR(C),XR(a)
      • R(d);OGATE::PXR(d)=S
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