MESON Chess Problem Database

Problem Display
PID: 17442 (K3k2r/3p3R/3P4/1p2p1B1/2p3R1/1Q6/8/1B6 w k - 0 1)

ten Cate, Pieter

South African Chess Magazine, 1946

K3k2r/3p3R/3P4/1p2p1B1/2p3R1/1Q6/8/1B6

#2

7 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...c3
      • 2.Rxh8#
      • 2.Qf7#
    • 1...0-0+
      • 2.Bd8#
  • Tries
    • 1.Qxc4?
      • threat
        • 2.Rxh8#
        • 2.Qf7#
        • 2.Qc8#
      • 1...Kf8
        • 2.Qf7#
        • 2.Qc8#
      • 1...Rxh7
        • 2.Qg8#
      • 1...Rf8
        • 2.Qc8#
      • 1...Rg8
        • 2.Qf7#
        • 2.Qxg8#
        • 2.Qc8#
      • 1...bxc4!
    • 1.Qxb5?
      • threat
        • 2.Qb8#
      • 1...0-0+
        • 2.Bd8#
      • 1...Kf8
        • 2.Qb8#
      • 1...Rxh7!
  • Keys
    • 1.Rxc4!
      • threat
        • 2.Rc8#
      • 1...0-0+
        • 2.Rc8#
      • 1...Kf8
        • 2.Rc8#
      • 1...bxc4
        • 2.Qb8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(e);0-0,CHECK,OGATEB,P_SPINP(a)::R(C)+B(D)
  • Tries
    • Try
      • Q(B);XP(a)
      • Threat
        • DUALS(3)
      • Vars
        • R(f);N_GUARD,XR(F)::QAR2(B)
        • R(f);SBLOCK::QAR2(B)
      • Refutation
        • P(b);XQ(B)
    • Try
      • Q(B);P_PINP(d),XP(b)
      • Threat
        • QAR(B)
      • Vars
        • K(e);0-0,CHECK,N_SPINP(d),OGATEB::R(C)+B(D)
        • K(e);N_SPINP(d),P-FLIGHT::QAR(B)
      • Refutation
        • R(f);XR(F)
  • Actual
    • R(C);XP(a)
    • Threat
      • R(C)
    • Vars
      • K(e);0-0,CHECK::QAB(B)+R(C)
      • K(e);P-FLIGHT::R(C)
      • P(b);OGATE,XR(C)::QAR(B)
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