MESON Chess Problem Database

Problem Display
PID: 72283 (6b1/3p1rn1/2N3pn/2Pp1kP1/Q4B2/3p1N2/8/5KRB w - - 0 1)

Fontaine, Leon

Chess, 1953

6b1/3p1rn1/2N3pn/2Pp1kP1/Q4B2/3p1N2/8/5KRB

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Sfd4#
    • 1...Se6
      • 2.Sh4#
  • Tries
    • 1.Bh2?
      • threat
        • 2.Sfd4#
      • 1...d4
        • 2.Sfxd4#
      • 1...Sg4
        • 2.Qxg4#
      • 1...Se6
        • 2.Sh4#
      • 1...Ke6!
  • Keys
    • 1.Bd6!
      • threat
        • 2.Sfd4#
      • 1...Ke6
        • 2.Sd4#
      • 1...d4
        • 2.Sfxd4#
      • 1...Sg4
        • 2.Qxg4#
      • 1...Se6
        • 2.Sh4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::S(D)
    • S(h);SBLOCK::S(D)
  • Tries
    • Try
      • B(F);
      • Threat
        • S(D)
      • Vars
        • P(b);::S(D),XP(b)
        • S(e);N_GUARD::QAB1(E),XS(e)
        • S(h);SBLOCK::S(D)
      • Refutation
        • K(c);P_PINS(D),S_FLIGHT
  • Actual
    • B(F);
    • Threat
      • S(D)
    • Vars
      • K(c);P_PINS(D),S_FLIGHT::S(I)
      • P(b);::S(D),XP(b)
      • S(e);N_GUARD::QAB1(E),XS(e)
      • S(h);SBLOCK::S(D)
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