MESON Chess Problem Database

Problem Display
PID: 97638 (1rk5/3p4/1p1P4/1K1Q4/2P2P2/5p2/8/8 w - - 0 1)

ten Cate, Pieter

Problemas, 1971

1rk5/3p4/1p1P4/1K1Q4/2P2P2/5p2/8/8

#2

5 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd8
      • 2.Qg8#
    • 1...Rb7
      • 2.Qg8#
    • 1...Ra8
      • 2.Qxa8#
  • Tries
    • 1.f5?
      • 1...Kd8
        • 2.Qg8#
      • 1...Rb7
        • 2.Qg8#
      • 1...Ra8
        • 2.Qxa8#
      • 1...f2!
  • Keys
    • 1.Ka6!
      • threat
        • 2.Qg8#
      • 1...Ra8+
        • 2.Qxa8#
      • 1...Kd8
        • 2.Qg8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • K(e);P-FLIGHT::QAR(D)
    • R(d);SBLOCK::QAR(D)
    • R(d);OGATEB::QAR2(D),XR(d)
  • Tries
    • Try
      • P(B);
      • Vars
        • K(e);P-FLIGHT::QAR(D)
        • R(d);SBLOCK::QAR(D)
        • R(d);OGATEB::QAR2(D),XR(d)
      • Refutation
        • P(a);
  • Actual
    • K(C);S_FLIGHT
    • Threat
      • QAR(D)
    • Vars
      • R(d);CHECK,OGATEB::QAR2(D),XR(d)
      • K(e);P-FLIGHT::QAR(D)
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