MESON Chess Problem Database

Problem Display
PID: 245993 (5b2/2B3pn/2Pp1kBp/3K3P/3N3p/5P1P/1P2P3/4Q3 w - - 0 1)

Petite, Efren

Europa-Rochade, 1992

5b2/2B3pn/2Pp1kBp/3K3P/3N3p/5P1P/1P2P3/4Q3

#2

11 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sf5?
      • 1...Kg5
        • 2.Qxh4#
      • 1...Sg5
        • 2.Qc3#
      • 1...Be7!
    • 1.Se6?
      • 1...Ke7
        • 2.Bd8#
      • 1...Be7
        • 2.Qc3#
      • 1...Sg5!
  • Keys
    • 1.Qc3!
      • 1...Kg5
        • 2.Se6#
      • 1...Ke7
        • 2.Sf5#
      • 1...Be7
        • 2.Se6#
      • 1...Sg5
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);
      • Vars
        • K(c);S_FLIGHT::QAB1(A),XP(a)
        • S(f);SBLOCK::QAB(A)
      • Refutation
        • B(g);
    • Try
      • S(F);
      • Vars
        • K(c);S_FLIGHT::B(K)
        • B(g);SBLOCK::QAB(A)
      • Refutation
        • S(f);
  • Actual
    • Q(A);
    • Vars
      • K(c);S_FLIGHT::S(F)
      • B(g);SBLOCK::QAB(A)+S(F)
      • S(f);SBLOCK::QAB(A)+S(F)
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