MESON Chess Problem Database

Problem Display
PID: 81167 (4n3/2p5/2P3R1/2P1R3/3PNk2/4p3/4K3/8 w - - 0 1)

Doudon, Max

Le Courrier des Echecs, 1997

4n3/2p5/2P3R1/2P1R3/3PNk2/4p3/4K3/8

#2

7 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Sf2?
      • threat
        • 2.Sd3#
        • 2.Sh3#
        • 2.Rg4#
      • 1...Sf6
        • 2.Sd3#
        • 2.Sh3#
      • 1...exf2!
    • 1.Sf6?
      • threat
        • 2.Sd5#
        • 2.Sh5#
        • 2.Rg4#
      • 1...Sg7
        • 2.Sd5#
        • 2.Rg4#
      • 1...Sxf6!
  • Keys
    • 1.Sg3!
      • threat
        • 2.Sh5#
        • 2.Re4#
        • 2.Rf5#
      • 1...Sd6
        • 2.Sh5#
      • 1...Sf6
        • 2.Rf5#
      • 1...Sg7
        • 2.Re4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • DUALS(3)
      • Refutation
        • P(a);XS(C)
    • Try
      • S(C);
      • Threat
        • DUALS(3)
      • Refutation
        • S(d);XS(C)
  • Actual
    • S(C);
    • Threat
      • DUALS(3)
    • Vars
      • S(d);::S(C)
      • S(d);::R1(E)
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