MESON Chess Problem Database

Problem Display
PID: 92084 (8/2pKp3/N5N1/3k4/2pnp3/1P1R1P2/2P1P2r/8 w - - 0 1)

Wielgos, Oskar

Deutsche Schachzeitung, 1976

8/2pKp3/N5N1/3k4/2pnp3/1P1R1P2/2P1P2r/8

#2

8 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...cxd3
      • 2.c4#
    • 1...exd3
      • 2.e4#
    • 1...c5
      • 2.Sc7#
    • 1...e5
      • 2.Se7#
  • Tries
    • 1.e3?
      • threat
        • 2.Rxd4#
      • 1...cxd3
        • 2.c4#
      • 1...exd3
        • 2.e4#
      • 1...c5
        • 2.Sc7#
      • 1...e5
        • 2.Se7#
      • 1...Rd2!
  • Keys
    • 1.c3!
      • threat
        • 2.Rxd4#
      • 1...cxd3
        • 2.c4#
      • 1...exd3
        • 2.e4#
      • 1...c5
        • 2.Sc7#
      • 1...e5
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • P(b);N_SPINS(c),OGATE,XR(D)::P(A)
    • P(d);N_SPINS(c),OGATE,XR(D)::P(B)
    • P(f);SBLOCK::S(F)
    • P(g);SBLOCK::S(G)
  • Tries
    • Try
      • P(B);
      • Threat
        • R1(D),XS(c)
      • Vars
        • P(b);N_SPINS(c),OGATE,XR(D)::P(A)
        • P(d);N_SPINS(c),OGATE,XR(D)::P(B)
        • P(f);SBLOCK::S(F)
        • P(g);SBLOCK::S(G)
      • Refutation
        • R(a);
  • Actual
    • P(A);
    • Threat
      • R1(D),XS(c)
    • Vars
      • P(b);N_SPINS(c),OGATE,XR(D)::P(A)
      • P(d);N_SPINS(c),OGATE,XR(D)::P(B)
      • P(f);SBLOCK::S(F)
      • P(g);SBLOCK::S(G)
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