MESON Chess Problem Database

Problem Display
PID: 287355 (1K6/5Rp1/2PpN1N1/3k4/5p2/1R3p2/1BP2P2/1B6 w - - 0 1)

Egorov, Gennady Sergeevich

Oleinik, Aleksandr Petrovich

Uralski Problemist, 2005

1K6/5Rp1/2PpN1N1/3k4/5p2/1R3p2/1BP2P2/1B6

#2

10 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.c4#
  • Tries
    • 1.Sgxf4+?
      • 1...Ke4
        • 2.Sg5#
        • 2.Re3#
        • 2.Rb4#
        • 2.c4#
      • 1...Kxc6
        • 2.Rc7#
      • 1...Kc4!
    • 1.Se7+?
      • 1...Kc4
        • 2.Rxf4#
      • 1...Ke4
        • 2.Sg5#
        • 2.Rb4#
        • 2.Rxf4#
        • 2.c4#
      • 1...Kxe6!
    • 1.Ba2?
      • 1...Kc4
        • 2.Rb6#
        • 2.Rbb7#
      • 1...Ke4
        • 2.Rb4#
      • 1...Kxe6
        • 2.Re3#
      • 1...Kxc6!
    • 1.Rb5+?
      • 1...Ke4
        • 2.Sg5#
        • 2.Rxf4#
        • 2.c3#
        • 2.c4#
      • 1...Kxc6
        • 2.Sd4#
      • 1...Kxe6
        • 2.Re7#
      • 1...Kc4!
    • 1.Rb6?
      • 1...Kc4
        • 2.Ba2#
      • 1...Ke4
        • 2.c4#
      • 1...Kxe6!
    • 1.c4+?
      • 1...Kxc6
        • 2.Rc7#
      • 1...Kxe6
        • 2.Re7#
      • 1...Kxc4!
  • Keys
    • 1.Rbb7!
      • 1...Kc4
        • 2.Ba2#
      • 1...Ke4
        • 2.c4#
      • 1...Kxc6
        • 2.Se7#
      • 1...Kxe6
        • 2.Sxf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(c);N_GUARD,S_FLIGHT::B(A)+P(C)
  • Tries
    • Try
      • S(H);CHECK,XP(b)
      • Vars
        • K(c);N_GUARD,S_FLIGHT,XP(F)::R1(I)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(H);CHECK
      • Vars
        • K(c);N_GUARD,S_FLIGHT::R(I),XP(b)
      • Refutation
        • K(c);S_FLIGHT,XS(G)
    • Try
      • B(A);
      • Vars
        • K(c);N_GUARD,S_FLIGHT::R(E)
        • K(c);N_GUARD,S_FLIGHT,XS(G)::B(A)+R(E),DCHECK
      • Refutation
        • K(c);S_FLIGHT,XP(F)
    • Try
      • R(E);CHECK
      • Vars
        • K(c);N_GUARD,S_FLIGHT,XP(F)::S(G)
        • K(c);N_GUARD,S_FLIGHT,XS(G)::R1(I)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(E);
      • Vars
        • K(c);N_GUARD,S_FLIGHT::B(A)
        • K(c);N_GUARD,S_FLIGHT::B(A)+P(C)
      • Refutation
        • K(c);S_FLIGHT,XS(G)
    • Try
      • P(C);CHECK
      • Vars
        • K(c);N_GUARD,S_FLIGHT,XP(F)::R1(I)
        • K(c);N_GUARD,S_FLIGHT,XS(G)::R1(I)
      • Refutation
        • K(c);S_FLIGHT,XP(C)
  • Actual
    • R(E);
    • Vars
      • K(c);N_GUARD,S_FLIGHT::B(A)
      • K(c);N_GUARD,S_FLIGHT::B(A)+P(C)
      • K(c);N_GUARD,S_FLIGHT,XP(F)::S(H)
      • K(c);N_GUARD,S_FLIGHT,XS(G)::S(H),XP(b)
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