MESON Chess Problem Database

Problem Display
PID: 267686 (Kbkr4/p1r5/1P2RP2/4P3/6R1/7B/8/8 w - - 0 1)

Stepochkin, Anatoly Viktorovich

Shakhmatnaya kompozitsiya, 1993

Kbkr4/p1r5/1P2RP2/4P3/6R1/7B/8/8

#2

7 + 5

SOLUTION

  • SOUND
  • Tries
    • 1.Rg8?
      • threat
        • 2.Rc6#
      • 1...Kd7
        • 2.Rd6#
      • 1...Rxg8
        • 2.Re8#
      • 1...Re8
        • 2.Rexe8#
      • 1...Rf8
        • 2.Re8#
      • 1...Rc6
        • 2.Rxc6#
        • 2.Rd6#
      • 1...Rd7!
    • 1.b7+?
      • 1...Kd7
        • 2.Rd4#
        • 2.Rg7#
      • 1...Rxb7!
  • Keys
    • 1.Rc4!
      • threat
        • 2.Re8#
      • 1...Kd7
        • 2.Re7#
      • 1...Rxc4
        • 2.Rc6#
      • 1...Re8
        • 2.Rxe8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);P_PINR(e)
      • Threat
        • B(A)+R(E)
      • Vars
        • K(d);N_SPINR(e),S_FLIGHT::B(A)+R(E),DCHECK
        • R(e);N_SPINR(e),XR(B)::B(A)+R(E),DCHECK
        • R(e);::B(A)+R(E),DCHECK,XR(e)
        • R(e);::B(A)+R(E),DCHECK
      • Refutation
        • R(b);
    • Try
      • P(D);CHECK
      • Refutation
        • R(b);XP(D)
  • Actual
    • R(B);P_PINR(b)
    • Threat
      • B(A)+R(E)
    • Vars
      • K(d);N_SPINR(b),S_FLIGHT::B(A)+R(E),DCHECK
      • R(b);N_SPINR(b),XR(B)::B(A)+R(E),DCHECK
      • R(e);::B(A)+R(E),DCHECK,XR(e)
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