MESON Chess Problem Database

Problem Display
PID: 108238 (3b4/2NN1p2/K2k1p2/1P3Q2/8/8/8/8 w - - 0 1)

Chocolous, Jiri

Montreal Gazette, 1895

3b4/2NN1p2/K2k1p2/1P3Q2/8/8/8/8

#2

5 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Be7
      • 2.Se8#
  • Tries
    • 1.Qe6+?
      • 1...Kxc7
        • 2.Qc6#
      • 1...fxe6!
    • 1.Qd5+?
      • 1...Kxc7
        • 2.Qc6#
      • 1...Ke7!
  • Keys
    • 1.Sb6!
      • 1...Kxc7
        • 2.Qf4#
      • 1...Ke7
        • 2.Qc5#
      • 1...Bxc7
        • 2.Sc8#
      • 1...Be7
        • 2.Se8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(d);SBLOCK::S(D)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT,XS(D)::QAR1(B)
      • Refutation
        • P(c);XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT,XS(D)::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(E);
    • Vars
      • K(a);S_FLIGHT,XS(D)::QAB(B)
      • K(a);S_FLIGHT::QAB(B)
      • B(d);SBLOCK,XS(D)::S(E)
      • B(d);SBLOCK::S(D)
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