MESON Chess Problem Database

Problem Display
PID: 55584 (6b1/b2r4/8/1pp5/2k1BN1R/3p4/P2K2P1/1R4Br w - - 0 1)

Shanshin, Valery Yurevich

Troll, 1993

6b1/b2r4/8/1pp5/2k1BN1R/3p4/P2K2P1/1R4Br

#2

8 + 8

6113 Problemschach-Jahrbuch (1993) 1994

SOLUTION

  • SOUND
  • Sets
    • 1...Rb7
      • 2.Bxd3#
    • 1...Rc7
      • 2.Bxd3#
    • 1...Re7
      • 2.Bxd3#
    • 1...Rf7
      • 2.Bxd3#
      • 2.Bd5#
    • 1...Rg7
      • 2.Bxd3#
    • 1...Rh7
      • 2.Bxd3#
    • 1...Bd5
      • 2.Bxd3#
  • Tries
    • 1.Sd5?
      • threat
        • 2.Rc1#
      • 1...Rxg1
        • 2.Bf3#
      • 1...Rxd5
        • 2.Bxd3#
      • 1...Bxd5
        • 2.Bxd3#
      • 1...b4!
  • Keys
    • 1.Bc6!
      • threat
        • 2.Bxb5#
      • 1...Rxg1
        • 2.Sd5#
      • 1...Rb7
        • 2.Sh3#
      • 1...b4
        • 2.Rc1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • R(g);N_GUARD::B(F),XP(b)
    • B(h);S_CUTR(g)::B(F),XP(b)
  • Tries
    • Try
      • S(G);
      • Threat
        • R(A)
      • Vars
        • R(a);N_GUARD,XB(B)::R(H)+B(F)
        • R(g);SBLOCK,XS(G)::R(H)+B(F),DCHECK,XP(b)
        • B(h);SBLOCK,XS(G)::R(H)+B(F),DCHECK,XP(b)
      • Refutation
        • P(d);
  • Actual
    • B(F);
    • Threat
      • B(F),XP(d)
    • Vars
      • R(a);N_GUARD,XB(B)::R(H)+S(G)
      • R(g);N_GUARD::R(H)+S(G)
      • P(d);SBLOCK::R(A)
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