MESON Chess Problem Database

Problem Display
PID: 215634 (BB6/2NQ4/8/8/5k1P/R1b2Nn1/2pP3K/q4b2 w - - 0 1)

Ismile, Suratkal

The Problemist, 1987

BB6/2NQ4/8/8/5k1P/R1b2Nn1/2pP3K/q4b2

#2

9 + 6

SOLUTION

  • SOUND
  • Tries
    • 1.Sg5?
      • threat
        • 2.Sd5#
      • 1...Ke5
        • 2.Se8#
      • 1...Sf5!
    • 1.Sd5+?
      • 1...Ke4
        • 2.Sxc3#
        • 2.Se3#
        • 2.Sb4#
        • 2.Sf4#
        • 2.Sb6#
        • 2.Sf6#
        • 2.Se7#
      • 1...Kxf3!
    • 1.Qe7?
      • threat
        • 2.Qg5#
      • 1...Kg4
        • 2.Qg5#
      • 1...Kf5
        • 2.Qg5#
      • 1...Se4
        • 2.Qxe4#
      • 1...Bf6!
  • Keys
    • 1.Se5!
      • threat
        • 2.Sg6#
      • 1...Kxe5
        • 2.Se8#
      • 1...Bxe5
        • 2.Rf3#
      • 1...Bd3
        • 2.Sxd3#
      • 1...Se4
        • 2.Sd5#
      • 1...Sf5
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Threat
        • B(I)+S(F),DCHECK
      • Vars
        • K(f);S_FLIGHT::B(I)+S(F)
      • Refutation
        • S(e);
    • Try
      • S(F);CHECK
      • Refutation
        • K(f);P-FLIGHT,P_SPINB(d),XS(D)
    • Try
      • Q(G);
      • Threat
        • QAB1(G)
      • Vars
        • K(f);P-FLIGHT::QAR1(G)
        • S(e);N_GUARD::QAR1(G),XS(e)
      • Refutation
        • B(d);
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • K(f);S_FLIGHT,XS(D)::B(I)+S(F)
      • B(d);OGATE,SBLOCK,XS(D)::R1(C)
      • B(b);N_GUARD::S(D),XB(b)
      • S(e);SBLOCK::S(F)
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