MESON Chess Problem Database

Problem Display
PID: 165240 (4k2r/1R5p/7K/8/1R6/p7/8/8 w k - 0 1)

Zakhodyakin, Gleb Nikolaevich

Shakhmaty v SSSR, 1962

4k2r/1R5p/7K/8/1R6/p7/8/8

#2

3 + 4

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Tries
    • 1.Ra4?
      • threat
        • 2.Ra8#
      • 1...Kd8
        • 2.Ra8#
      • 1...Kf8
        • 2.Ra8#
      • 1...0-0!
    • 1.Ra7?
      • threat
        • 2.Rb8#
      • 1...Kd8
        • 2.Rb8#
      • 1...Kf8
        • 2.Rb8#
      • 1...0-0!
    • 1.Rxh7?
      • threat
        • 2.Rb8#
      • 1...Kd8
        • 2.Rb8#
      • 1...Kf8
        • 2.Rb8#
      • 1...0-0
        • 2.Rg4#
      • 1...Rxh7+!
  • Keys
    • 1.Rg7!
      • threat
        • 2.Rb8#
      • 1...Kd8
        • 2.Rb8#
      • 1...Kf8
        • 2.Rb8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);
      • Threat
        • R(A)
      • Vars
        • K(c);P-FLIGHT::R(A)
      • Refutation
        • K(c);0-0
    • Try
      • R(C);
      • Threat
        • R(A)
      • Vars
        • K(c);P-FLIGHT::R(A)
      • Refutation
        • K(c);0-0
    • Try
      • R(C);P_SPINR(C),XP(b)
      • Threat
        • R(A)
      • Vars
        • K(c);P-FLIGHT::R(A)
        • K(c);0-0,N_PINR(C),OGATEB::R(A)
      • Refutation
        • R(d);CHECK,XR(C)
  • Actual
    • R(C);
    • Threat
      • R(A)
    • Vars
      • K(c);P-FLIGHT::R(A)
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