MESON Chess Problem Database

Problem Display
PID: 102778 (2b5/nN4Q1/8/PpNk1p2/1p3p2/1K3P2/8/8 w - - 0 1)

Palkoska, Emil

L'Echiquier Francais, 1907

2b5/nN4Q1/8/PpNk1p2/1p3p2/1K3P2/8/8

#2

6 + 7

78 Bulletin Ouvrier des Echecs 1952
3713 Snap 2009
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qd4+?
      • 1...Kc6
        • 2.Qd6#
      • 1...Kxd4!
    • 1.Qe5+?
      • 1...Kc6
        • 2.Sd8#
        • 2.Qd6#
      • 1...Kxe5!
    • 1.Qd7+?
      • 1...Ke5
        • 2.Qd6#
      • 1...Bxd7!
  • Keys
    • 1.Sd3!
      • 1...Kc6
        • 2.Sxb4#
      • 1...Ke6
        • 2.Sxf4#
      • 1...Bxb7
        • 2.Qd7#
      • 1...Be6
        • 2.Sxb4#
      • 1...Bd7
        • 2.Qxd7#
      • 1...Sc6
        • 2.Sxf4#

This anticipates 121519(1913)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(F);CHECK
      • Vars
        • K(d);OGATE,S_FLIGHT::QAR1(F)
      • Refutation
        • K(d);P-FLIGHT,XQ(F)
    • Try
      • Q(F);CHECK
      • Refutation
        • K(d);P-FLIGHT,XQ(F)
    • Try
      • Q(F);CHECK
      • Vars
        • K(d);P-FLIGHT::QAB1(F)
      • Refutation
        • B(g);XQ(F)
  • Actual
    • S(D);
    • Vars
      • K(d);S_FLIGHT::S(D),XP(a)
      • K(d);S_FLIGHT::S(D),XP(b)
      • B(g);N_GUARD,XS(E)::QAR2(F)
      • B(g);SBLOCK::S(D),XP(a)
      • B(g);N_GUARD::QAR2(F),XB(g)
      • S(f);SBLOCK::S(D),XP(b)
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