MESON Chess Problem Database

Problem Display
PID: 79885 (8/B3p3/1qBPK3/1PP1Rp2/1rrk1p1R/4pp2/2n5/2N2NQ1 w - - 0 1)

Gvozdjak, Peter

2nd HM., Einat-Comay-50 JT, 2008

8/B3p3/1qBPK3/1PP1Rp2/1rrk1p1R/4pp2/2n5/2N2NQ1

#2

11 + 10

721 Variantim 2008

SOLUTION

  • SOUND
  • Sets
    • 1...Rc3
      • 2.Rxf4#
    • 1...Sa1
      • 2.Qxe3#
    • 1...Se1
      • 2.Qxe3#
    • 1...Sa3
      • 2.Qxe3#
  • Tries
    • 1.Rxe3?
      • threat
        • 2.Rd3#
      • 1...Kxc5
        • 2.Re5#
      • 1...Qxc6
        • 2.Qg7#
      • 1...Rxc5
        • 2.Rxf4#
      • 1...Sxe3
        • 2.Qxe3#
      • 1...Rc3
        • 2.Re4#
      • 1...f2!
    • 1.Rd5+?
      • 1...Ke4
        • 2.Sg3#
      • 1...Kc3!
  • Keys
    • 1.Qg7!
      • threat
        • 2.Rxf5#
      • 1...Kc3
        • 2.Rxe3#
      • 1...Qxc6
        • 2.Rxe3#
      • 1...Rxc5
        • 2.Re4#
      • 1...Rc3
        • 2.Rxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • R(e);SBLOCK::R(D),XP(g)
    • S(a);N_GUARD::QAB1(C),XP(b)
  • Tries
    • Try
      • R(G);P_PINP(g),XP(b)
      • Threat
        • QAB(C)+R(G),DCHECK
      • Vars
        • K(f);N_SPINP(g),P_SPINQ(i),S_FLIGHT,XP(F)::QAB(C)+R(G),DCHECK
        • Q(i);P_PINP(I),XB(H)::QAB(C)
        • R(e);SBLOCK,XP(F)::R(D),XP(g)
        • S(a);OGATE,P_SPINS(a),XR(G)::QAB1(C),XS(a)
        • R(e);SBLOCK::QAB(C)+R(G),DCHECK
      • Refutation
        • P(c);
    • Try
      • R(G);CHECK
      • Vars
        • K(f);N_SPINP(b),P-FLIGHT,P_SPINP(g)::S(B)
      • Refutation
        • K(f);N_SPINP(b),S_FLIGHT
  • Actual
    • Q(C);N_PINP(b),P_PINP(g)
    • Threat
      • QAB(C)+R(G),XP(h)
    • Vars
      • K(f);N_SPINP(g),S_FLIGHT::QAB(C)+R(G),DCHECK,XP(b)
      • Q(i);P_PINP(I),XB(H)::QAB(C)+R(G),XP(b)
      • R(e);SBLOCK,XP(F)::QAB(C)+R(G),DCHECK
      • R(e);SBLOCK::R(D),XP(g)
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