MESON Chess Problem Database

Problem Display
PID: 62500 (6KB/7B/8/3P4/3r4/P1kp2R1/Q3b2p/4bR2 w - - 0 1)

Rossomakho, Yakov V

Phenix, 1998

6KB/7B/8/3P4/3r4/P1kp2R1/Q3b2p/4bR2

#2

8 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Bf2
      • 2.Rc1#
    • 1...Bxg3
      • 2.Rc1#
    • 1...Bd1
      • 2.Rxd3#
    • 1...Bg4
      • 2.Rxd3#
    • 1...Bh5
      • 2.Rxd3#
  • Tries
    • 1.Rf8?
      • threat
        • 2.Rc8#
      • 1...Bg4
        • 2.Rxd3#
      • 1...Bxg3!
    • 1.Rg4?
      • threat
        • 2.Bxd4#
      • 1...Bf2
        • 2.Rc1#
      • 1...Bxg4!
  • Keys
    • 1.Rg7!
      • threat
        • 2.Rc7#
      • 1...Rg4
        • 2.Rxg4#
      • 1...Bg3
        • 2.Rc1#
      • 1...d2
        • 2.Qc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • B(a);OGATE::R(A)
    • B(a);N_SPINP(e),OGATE,XR(D)::R(A)
    • B(b);N_GUARD::R1(D),XP(e)
  • Tries
    • Try
      • R(A);
      • Threat
        • R(A)
      • Vars
        • B(b);N_GUARD::R1(D),XP(e)
      • Refutation
        • B(a);N_SPINP(e),XR(D)
    • Try
      • R(D);N_PINP(e)
      • Threat
        • B(H),XR(f)
      • Vars
        • B(a);OGATE::R(A)
      • Refutation
        • B(b);XR(D)
  • Actual
    • R(D);N_PINP(e),N_PINR(f)
    • Threat
      • R(D)
    • Vars
      • R(f);OGATEB,P_PINR(D)::B(H)+R(D),XR(f)
      • B(a);OGATE::R(A)
      • P(e);N_GUARD::QAR1(B)
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