MESON Chess Problem Database

Problem Display
PID: 249839 (1B4B1/QK1ppp2/3pP3/3kP3/6P1/b7/1NPP4/3RR3 w - - 0 1)

Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)

Uralski Problemist, 2008

1B4B1/QK1ppp2/3pP3/3kP3/6P1/b7/1NPP4/3RR3

#2

12 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...dxe5
      • 2.Rxe5#
    • 1...dxe6
      • 2.c4#
    • 1...fxe6
      • 2.c4#
    • 1...f5
      • 2.c4#
    • 1...f6
      • 2.c4#
  • Tries
    • 1.Qd4+?
      • 1...Kxe6
        • 2.exd6#
      • 1...Kxd4!
  • Keys
    • 1.d4!
      • 1...Kxe6
        • 2.d5#
      • 1...Bxb2
        • 2.Qa2#
      • 1...dxe5
        • 2.Rxe5#
      • 1...dxe6
        • 2.c4#
      • 1...fxe6
        • 2.c4#
      • 1...Bb4
        • 2.Qa2#
      • 1...Bc5
        • 2.Qa2#
      • 1...f5
        • 2.c4#
      • 1...f6
        • 2.c4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(c);OGATE,XP(G)::R1(B),XP(c)
    • P(d);SBLOCK,XP(H)::P(D)
    • P(f);P_SPINP(f),XP(H)::P(D)
    • P(f);::P(D)
  • Tries
    • Try
      • Q(I);CHECK
      • Vars
        • K(b);N_GUARD,P_SPINP(f),S_FLIGHT,XP(H)::R(B)+P(G),XP(c)
      • Refutation
        • K(b);P-FLIGHT,XQ(I)
  • Actual
    • P(E);
    • Vars
      • K(b);OGATE,P_SPINP(f),S_FLIGHT,XP(H)::P(E)
      • B(a);OGATE,XS(C)::QAB(I)
      • P(c);OGATE,XP(G)::R1(B),XP(c)
      • P(d);SBLOCK,XP(H)::P(D)
      • P(f);P_SPINP(f),XP(H)::P(D)
      • B(a);OGATE::QAB(I)
      • P(f);::P(D)
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