MESON Chess Problem Database

Problem Display
PID: 103988 (4N3/8/3P4/3PkPp1/3nBpP1/2RK1P2/1R6/B3Q3 w - - 0 1)

Riczu, Lajos

le Grand, Henk

Schakend Nederland, 1979

4N3/8/3P4/3PkPp1/3nBpP1/2RK1P2/1R6/B3Q3

#2

12 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sxf3
      • 2.Bxf3#
  • Tries
    • 1.Kc4?
      • 1...Sxf3
        • 2.Bxf3#
      • 1...Sxf5
        • 2.Bxf5#
      • 1...Sc2
        • 2.Bxc2#
      • 1...Sb3
        • 2.Bb1#
        • 2.Bc2#
        • 2.Bd3#
      • 1...Sb5
        • 2.Bb1#
        • 2.Bc2#
        • 2.Bd3#
      • 1...Sc6
        • 2.Bb1#
        • 2.Bc2#
        • 2.Bd3#
      • 1...Se6
        • 2.Bb1#
        • 2.Bc2#
        • 2.Bd3#
      • 1...Se2!
  • Keys
    • 1.Rc5!
      • 1...Sxf3
        • 2.Bxf3#
      • 1...Sxf5
        • 2.Bxf5#
      • 1...Se2
        • 2.Rxe2#
      • 1...Sc2
        • 2.Rbxc2#
      • 1...Sb3
        • 2.Rxb3#
      • 1...Sb5
        • 2.Rbxb5#
      • 1...Sc6
        • 2.dxc6#
      • 1...Se6
        • 2.dxe6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • S(a);OGATE,XP(F)::QAR(B)+B(G),XS(a)
  • Tries
    • Try
      • K(E);S_FLIGHT
      • Vars
        • S(a);OGATE,XP(F)::QAR(B)+B(G),XS(a)
        • S(a);OGATE,XP(J)::QAR(B)+B(G),XS(a)
        • S(a);N_GUARD::QAR(B)+B(G),XS(a)
      • Refutation
        • S(a);
  • Actual
    • R(D);
    • Vars
      • S(a);OGATE,XP(F)::QAR(B)+B(G),XS(a)
      • S(a);OGATE,XP(J)::QAR(B)+B(G),XS(a)
      • S(a);OGATEB::B(A)+R(C),XS(a)
      • S(a);OGATE::R(D)+P(I),XS(a)
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