MESON Chess Problem Database

Problem Display
PID: 197849 (KB6/1R3B2/2k5/2P4r/8/8/2R1N2r/6b1 w - - 0 1)

Fomichev, Evgeny Vasilevich

Smirnov, Valery Gennadevich

Sachova skladba, 1986

KB6/1R3B2/2k5/2P4r/8/8/2R1N2r/6b1

#2

7 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Rf2
      • 2.Sd4#
    • 1...Bd4
      • 2.Sxd4#
    • 1...Bxc5
      • 2.Sd4#
  • Tries
    • 1.Be6?
      • threat
        • 2.Rb6#
      • 1...Bxc5
        • 2.Sd4#
      • 1...Rxc5!
    • 1.Rcb2?
      • threat
        • 2.Rc7#
      • 1...Kxc5
        • 2.Rc2#
      • 1...Rxc5
        • 2.R2b6#
      • 1...Bxc5!
  • Keys
    • 1.Sc3!
      • threat
        • 2.Rc7#
      • 1...Kxc5
        • 2.Se2#
      • 1...Rxc5
        • 2.Be8#
      • 1...Bxc5
        • 2.Be8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • R(b);S_CUTB(a)::S(B)
    • B(a);N_GUARD::S(B),XB(a)
    • B(a);N_GUARD,P_SPINB(a),XP(C)::S(B)
  • Tries
    • Try
      • B(E);
      • Threat
        • R1(D)
      • Vars
        • B(a);N_GUARD,P_SPINB(a),XP(C)::S(B)
      • Refutation
        • R(c);P_SPINR(c),XP(C)
    • Try
      • R(A);
      • Threat
        • R1(D)
      • Vars
        • K(d);OGATEB,P-FLIGHT,XP(C)::R(A)
        • R(c);SBLOCK,XP(C)::R1(A)
      • Refutation
        • B(a);XP(C)
  • Actual
    • S(B);
    • Threat
      • R1(D)
    • Vars
      • K(d);P-FLIGHT,XP(C)::R(A)+S(B)
      • R(c);SBLOCK,XP(C)::B(E)
      • B(a);SBLOCK,XP(C)::B(E)
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