MESON Chess Problem Database

Problem Display
PID: 119763 (5n2/N2N4/3p4/3k4/4p1Q1/2P5/1KbPP2q/8 w - - 0 1)

Martin, Godefroy Jose

Ruch, 1948

5n2/N2N4/3p4/3k4/4p1Q1/2P5/1KbPP2q/8

#2

7 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sh7
      • 2.Qg8#
    • 1...e3
      • 2.c4#
  • Tries
    • 1.Qf5+?
      • 1...Kc4
        • 2.Sb6#
        • 2.Qb5#
      • 1...Qe5!
  • Keys
    • 1.d4!
      • threat
        • 2.Sb6#
      • 1...Kc4
        • 2.Sb6#
      • 1...Sxd7
        • 2.Qg8#
      • 1...exd4 ep
        • 2.c4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • S(f);N_GUARD::QAB(E)
    • P(c);::P(D)
  • Tries
    • Try
      • Q(E);CHECK
      • Refutation
        • Q(b);P_PINP(D),P_SPINQ(b)
  • Actual
    • P(B);
    • Threat
      • S(G)
    • Vars
      • K(d);S_FLIGHT::S(G)
      • S(f);N_GUARD,XS(G)::QAB(E)
      • P(c);EP,XP(B)::P(D)
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