MESON Chess Problem Database

Problem Display
PID: 197289 (6kr/3K1RPN/8/5R2/8/8/8/8 w - - 0 1)

Malishev, Aleksandr Fedorovich

Zadachi i Etyudi, 1996

6kr/3K1RPN/8/5R2/8/8/8/8

#2

5 + 2

5454 Near Snap 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Re7?
      • threat
        • 2.Sf6#
      • 1...Rxh7
        • 2.Rf8#
      • 1...Kxh7!
  • Keys
    • 1.Rg5!
      • 1...Kxf7
        • 2.gxh8S#
      • 1...Kxh7
        • 2.g8S#
      • 1...Rxh7
        • 2.Rf8#

Anticipated by 139065(0000), 198392(1920), 80742(1962)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);
      • Threat
        • S(E)
      • Vars
        • R(b);SBLOCK,XS(E)::R1(A)
      • Refutation
        • K(a);S_FLIGHT,XS(E)
  • Actual
    • R(A);
    • Vars
      • K(a);S_FLIGHT,XR(C)::PXR(b)=S
      • K(a);OGATE,S_FLIGHT,XS(E)::P=S
      • R(b);SBLOCK,XS(E)::R1(C)
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