MESON Chess Problem Database

Problem Display
PID: 136730 (2R5/2K4p/2Bp4/3NP3/Ppkr4/1n1N4/P1pbP2q/1nr2QB1 w - - 0 1)

Mosiashvili, Givi

Comm., Probleemblad, 2010

2R5/2K4p/2Bp4/3NP3/Ppkr4/1n1N4/P1pbP2q/1nr2QB1

#2

11 + 11

102 Probleemblad 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd3
      • 2.exd3#
    • 1...Re4
      • 2.Sb2#
    • 1...Rf4
      • 2.Sb2#
    • 1...Rg4
      • 2.Sb2#
    • 1...Rh4
      • 2.Sb2#
    • 1...Bc3
      • 2.Se3#
      • 2.Sb6#
    • 1...Sc3
      • 2.Sb6#
    • 1...Sc5
      • 2.Sb2#
  • Tries
    • 1.Kxd6?
      • threat
        • 2.Sb2#
        • 2.Bb5#
      • 1...Qxe5+
        • 2.Sxe5#
      • 1...Rxd5+
        • 2.Bxd5#
      • 1...Rxd3
        • 2.Bb5#
        • 2.exd3#
      • 1...Bc3
        • 2.Bb5#
      • 1...Qh6+!
    • 1.Qf3?
      • threat
        • 2.Bb5#
      • 1...Rxd5
        • 2.Sb2#
      • 1...Re4
        • 2.Sb2#
      • 1...Sc3
        • 2.Sb6#
      • 1...Sa3!
  • Keys
    • 1.Kb6!
      • threat
        • 2.Sb2#
      • 1...Rxd3
        • 2.exd3#
      • 1...Rxd5
        • 2.Bb5#
      • 1...Bc3
        • 2.Se3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • R(i);OGATE,XS(E)::P(D),XR(i)
    • R(i);::S(E)
    • S(a);SBLOCK::S(G)
    • S(f);SBLOCK::S(E)
  • Tries
    • Try
      • K(J);P_SPINP(H),P_SPINS(G),S_FLIGHT,XP(j)
      • Threat
        • DUALS(2)
      • Vars
        • Q(e);CHECK,XP(H)::S(E),XQ(e)
        • R(i);CHECK,OGATE,XS(G)::R(K)+B(I),DCHECK,XR(i)
        • B(d);::R(K)+B(I),DCHECK
      • Refutation
        • Q(e);CHECK,N_PINP(H)
    • Try
      • Q(A);
      • Threat
        • B(I)
      • Vars
        • R(i);XS(G)::S(E)
        • R(i);::S(E)
        • S(a);SBLOCK::S(G)
      • Refutation
        • S(a);
  • Actual
    • K(J);S_FLIGHT
    • Threat
      • S(E)
    • Vars
      • R(i);OGATE,XS(E)::P(D),XR(i)
      • R(i);SBLOCK,XS(G)::R(K)+B(I),DCHECK
      • B(d);N_GUARD,SBLOCK::S(G)
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