MESON Chess Problem Database

Problem Display
PID: 276204 (8/2K2p2/4B3/Bb2n1Rr/2pkpN2/5P2/3N1P2/bR6 w - - 0 1)

Kopyl, Valery Volodimirovich

Melnichenko, Viktor Oleksandrovich

Pat a Mat, 2004

8/2K2p2/4B3/Bb2n1Rr/2pkpN2/5P2/3N1P2/bR6

#2

9 + 8

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Bb6#
    • 1...Bc3
      • 2.Bb6#
    • 1...Sd3
      • 2.Se2#
    • 1...c3
      • 2.Sb3#
      • 2.Bb6#
  • Tries
    • 1.Sxe4?
      • threat
        • 2.Bb6#
      • 1...Sd3
        • 2.Se2#
      • 1...Sd7
        • 2.Rd1#
      • 1...Sxf3!
    • 1.Se2+?
      • 1...Kc5
        • 2.Sxe4#
        • 2.Bb4#
        • 2.Bb6#
      • 1...Kd3!
    • 1.Rc1?
      • threat
        • 2.Bb6#
      • 1...Kc5
        • 2.Sb3#
      • 1...Sd3
        • 2.Se2#
      • 1...Sd7!
    • 1.Rd1?
      • threat
        • 2.Sb3#
      • 1...Kc5
        • 2.Sxe4#
      • 1...Sd3
        • 2.Se2#
      • 1...exf3!
  • Keys
    • 1.Rb3!
      • threat
        • 2.Bb6#
      • 1...Kc5
        • 2.Bb6#
      • 1...cxb3
        • 2.Sxb3#
      • 1...Sd3
        • 2.Se2#
      • 1...Sd7
        • 2.Se2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(c);N_GUARD,P_SPINS(f),S_FLIGHT::B(F)
    • B(a);SBLOCK::B(F)
    • S(f);SBLOCK::S(E)
  • Tries
    • Try
      • S(B);XP(d)
      • Threat
        • B(F)
      • Vars
        • S(f);SBLOCK::S(E)
        • S(f);N_GUARD::R(A)
      • Refutation
        • S(f);XP(D)
    • Try
      • S(E);CHECK
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • R(A);
      • Threat
        • B(F)
      • Vars
        • K(c);P_SPINP(b),P_SPINS(f),S_FLIGHT::S(B)
        • S(f);SBLOCK::S(E)
      • Refutation
        • S(f);
    • Try
      • R(A);
      • Threat
        • R(A)+S(B),DCHECK
      • Vars
        • K(c);P_SPINS(f),S_FLIGHT::S(B),XP(d)
        • S(f);SBLOCK::S(E)
      • Refutation
        • P(d);XP(D)
  • Actual
    • R(A);
    • Threat
      • B(F)
    • Vars
      • K(c);P_SPINS(f),S_FLIGHT::B(F)
      • P(b);XR(A)::S(B),XP(b)
      • S(f);::S(E)
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