MESON Chess Problem Database

Problem Display
PID: 78431 (2N5/1p6/b2R1p2/Npk3bR/1n6/B3P3/2nP4/2K5 w - - 0 1)

Grossi, Damien

La France du Sud-Est, 1950

2N5/1p6/b2R1p2/Npk3bR/1n6/B3P3/2nP4/2K5

#2

8 + 8

274 diagrammes 1973

SOLUTION

  • SOUND
  • Sets
    • 1...Sa1
      • 2.d4#
    • 1...Se1
      • 2.d4#
    • 1...Sxa3
      • 2.d4#
    • 1...Sxe3
      • 2.d4#
    • 1...Sd4
      • 2.exd4#
  • Tries
    • 1.Bxb4+?
      • 1...Sxb4
        • 2.d4#
      • 1...Kxb4!
    • 1.Rxg5+?
      • 1...f5
        • 2.Rxf5#
      • 1...fxg5!
    • 1.d3?
      • threat
        • 2.Sb3#
      • 1...Sa1
        • 2.d4#
      • 1...Sd4!
    • 1.e4?
      • threat
        • 2.Rd5#
      • 1...Se3
        • 2.d4#
      • 1...Sxa3!
  • Keys
    • 1.Rh7!
      • threat
        • 2.Rc7#
      • 1...Sxa3
        • 2.d4#
      • 1...Sd4
        • 2.exd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • S(a);N_GUARD::P(B)
    • S(a);N_GUARD,N_SPINS(b),XB(C)::P(B)
    • S(a);N_GUARD,XP(D)::P(B)
    • S(a);OGATE::P(D),XS(a)
  • Tries
    • Try
      • B(C);CHECK,XS(b)
      • Vars
        • S(a);SBLOCK,XB(C)::P(B)
      • Refutation
        • K(d);N_SPINB(e),S_FLIGHT,XB(C)
    • Try
      • R(F);CHECK,XB(e)
      • Vars
        • P(g);P_SPINP(g)::R(F),XP(g)
      • Refutation
        • P(g);XR(F)
    • Try
      • P(B);P_SPINP(D)
      • Threat
        • S(E)
      • Vars
        • S(a);N_GUARD::P(B)
      • Refutation
        • S(a);
    • Try
      • P(D);P_SPINP(B)
      • Threat
        • R1(G)
      • Vars
        • S(a);N_PINP(B)::P(B)
      • Refutation
        • S(a);N_SPINS(b),XB(C)
  • Actual
    • R(F);N_PINB(e)
    • Threat
      • R(F)
    • Vars
      • S(a);N_GUARD,N_SPINS(b),XB(C)::P(B)
      • S(a);OGATE::P(D),XS(a)
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