MESON Chess Problem Database

Problem Display
PID: 267908 (8/3rrp2/3PbP2/2pPNP2/4k2K/4P3/4B3/Q1RN4 w - - 0 1)

Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)

Mat, 1980

8/3rrp2/3PbP2/2pPNP2/4k2K/4P3/4B3/Q1RN4

#2

11 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd5
      • 2.Bd3#
    • 1...Bxf5
      • 2.Bf3#
  • Tries
    • 1.Sg4?
      • threat
        • 2.Qe5#
      • 1...Kxf5
        • 2.Bd3#
        • 2.Qb1#
      • 1...Bxd5
        • 2.Qb1#
      • 1...Bxf5
        • 2.Sc3#
      • 1...Kxd5!
    • 1.Rc4+?
      • 1...Kxf5
        • 2.Rf4#
      • 1...Kxd5!
    • 1.Qd4+?
      • 1...Kxf5
        • 2.Qf4#
      • 1...cxd4!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Qe5#
      • 1...Kxd5
        • 2.Bf3#
      • 1...Kxf5
        • 2.Bd3#
      • 1...Bxd5
        • 2.Qb1#
      • 1...Bxf5
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(c);SBLOCK,XP(G)::B(D)
    • B(c);SBLOCK,XP(I)::B(D)
  • Tries
    • Try
      • S(H);
      • Threat
        • QAR1(A)
      • Vars
        • B(c);SBLOCK,XP(G)::QAB(A)
        • B(c);SBLOCK,XP(I)::S(C)
      • Refutation
        • K(a);S_FLIGHT,XP(G)
    • Try
      • R(B);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT,XP(I)::R1(B)
      • Refutation
        • K(a);S_FLIGHT,XP(G)
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT,XP(I)::QAR1(A)
      • Refutation
        • P(b);XQ(A)
  • Actual
    • S(H);
    • Threat
      • QAR1(A)
    • Vars
      • K(a);N_GUARD,S_FLIGHT,XP(G)::B(D)
      • K(a);N_GUARD,S_FLIGHT,XP(I)::B(D)
      • B(c);SBLOCK,XP(G)::QAB(A)
      • B(c);SBLOCK,XP(I)::S(C)
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