MESON Chess Problem Database

Problem Display
PID: 268994 (1n3B2/1RpP1p2/p1PnRNP1/1pkP1p2/p2N4/2PK4/8/8 w - - 0 1)

Juricek, Stanislav

Sachova skladba, 2022

1n3B2/1RpP1p2/p1PnRNP1/1pkP1p2/p2N4/2PK4/8/8

#2

11 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...a3
      • 2.Sb3#
    • 1...b4
      • 2.cxb4#
    • 1...a5
      • 2.Rxb5#
    • 1...fxe6
      • 2.Sxe6#
  • Tries
    • 1.Rxd6?
      • threat
        • 2.Re6#
      • 1...Sxc6
        • 2.Rxc6#
      • 1...Sxd7
        • 2.Sxd7#
        • 2.Rxd7#
      • 1...cxd6!
  • Keys
    • 1.Re5!
      • 1...Sxc6
        • 2.dxc6#
      • 1...Sxd7
        • 2.Sxd7#
      • 1...fxg6
        • 2.Se6#
      • 1...a3
        • 2.Sb3#
      • 1...b4
        • 2.cxb4#
      • 1...f4
        • 2.Se4#
      • 1...a5
        • 2.Rxb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • P(a);N_GUARD::S(C)
    • P(b);OGATE::P(A),XP(b)
    • P(e);N_GUARD::R1(I),XP(b)
    • P(h);XR(F)::S(C),XP(h)
  • Tries
    • Try
      • R(F);XS(f)
      • Threat
        • B(K)+R(F)
      • Vars
        • S(i);OGATE,XP(E)::B(K)+R(F),DCHECK,XS(i)
      • Refutation
        • P(g);P_SPINP(g),XR(F)
  • Actual
    • R(F);
    • Vars
      • S(i);OGATE,XP(E)::R(F)+P(D),XS(i)
      • S(i);XP(J)::S(G),XS(i)
      • P(h);N_GUARD,XP(H)::S(C)
      • P(a);N_GUARD::S(C)
      • P(b);OGATE::P(A),XP(b)
      • P(d);N_GUARD::S(G)
      • P(e);N_GUARD::R1(I),XP(b)
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Developed and maintained by Brian Stephenson.
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