MESON Chess Problem Database

Problem Display
PID: 46899 (3Q4/2pK1p2/rRNp1N1p/3PPk1P/1B5P/b2P2Pb/1p6/4r3 w - - 0 1)

Mariani, Stefano

Schach, 1985

3Q4/2pK1p2/rRNp1N1p/3PPk1P/1B5P/b2P2Pb/1p6/4r3

#2

12 + 10

102 Probleemblad 2003

SOLUTION

  • SOUND
  • Sets
    • 1...Re4
      • 2.dxe4#
    • 1...Rxe5
      • 2.Sd4#
    • 1...dxe5
      • 2.Se7#
  • Tries
    • 1.Kxc7?
      • threat
        • 2.Qd7#
        • 2.Qc8#
      • 1...Rxe5
        • 2.Sd4#
      • 1...dxe5
        • 2.Se7#
      • 1...Ra8
        • 2.Qd7#
      • 1...Ra7+!
    • 1.Ke7?
      • threat
        • 2.Qd7#
        • 2.Qc8#
      • 1...Ra8
        • 2.Qd7#
      • 1...Rxe5+!
    • 1.Kc8?
      • threat
        • 2.Qd7#
      • 1...Rxe5
        • 2.Sd4#
      • 1...dxe5
        • 2.Se7#
      • 1...Ra8+!
    • 1.Sg4?
      • threat
        • 2.Sxh6#
      • 1...Bxg4
        • 2.Qf6#
      • 1...Kxg4!
    • 1.Bc3?
      • threat
        • 2.Se7#
      • 1...Rxe5
        • 2.Sd4#
      • 1...dxe5!
    • 1.Qe7?
      • threat
        • 2.Sd4#
      • 1...Re4
        • 2.dxe4#
      • 1...dxe5!
    • 1.Qe8?
      • threat
        • 2.Sd4#
      • 1...dxe5
        • 2.Se7#
      • 1...Re4
        • 2.dxe4#
      • 1...Rxe5!
    • 1.Qg8?
      • threat
        • 2.Qh7#
      • 1...dxe5
        • 2.Se7#
      • 1...Rxe5!
  • Keys
    • 1.Qh8!
      • threat
        • 2.Qh7#
      • 1...Rxe5
        • 2.Sd4#
      • 1...dxe5
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • R(a);OGATE::P(A),XR(a)
    • R(a);SBLOCK,XP(F)::S(I)
    • P(g);SBLOCK,XP(F)::S(I)
  • Tries
    • Try
      • K(K);P-FLIGHT,XP(i)
      • Threat
        • DUALS(2)
      • Vars
        • R(a);SBLOCK,XP(F)::S(I)
        • P(g);SBLOCK,XP(F)::S(I)
        • R(f);::QAB(L)
      • Refutation
        • R(f);CHECK
    • Try
      • K(K);P-FLIGHT,P_SPINP(F)
      • Threat
        • DUALS(2)
      • Vars
        • R(f);::QAB(L)
      • Refutation
        • R(a);CHECK,XP(F)
    • Try
      • K(K);S_FLIGHT
      • Threat
        • QAB(L)
      • Vars
        • R(a);SBLOCK,XP(F)::S(I)
        • P(g);SBLOCK,XP(F)::S(I)
      • Refutation
        • R(f);CHECK
    • Try
      • S(J);
      • Threat
        • S(J),XP(h)
      • Vars
        • B(d);SBLOCK,XS(J)::QAR1(L)
      • Refutation
        • K(e);S_FLIGHT,XS(J)
    • Try
      • B(C);
      • Threat
        • S(I)
      • Vars
        • R(a);SBLOCK,XP(F)::S(I)
      • Refutation
        • P(g);XP(F)
    • Try
      • Q(L);
      • Threat
        • S(I)
      • Vars
        • R(a);OGATE::P(A),XR(a)
      • Refutation
        • P(g);XP(F)
    • Try
      • Q(L);
      • Threat
        • S(I)
      • Vars
        • P(g);SBLOCK,XP(F)::S(I)
        • R(a);OGATE::P(A),XR(a)
      • Refutation
        • R(a);XP(F)
    • Try
      • Q(L);
      • Threat
        • QAB(L)
      • Vars
        • P(g);SBLOCK,XP(F)::S(I)
      • Refutation
        • R(a);XP(F)
  • Actual
    • Q(L);
    • Threat
      • QAB(L)
    • Vars
      • R(a);SBLOCK,XP(F)::S(I)
      • P(g);SBLOCK,XP(F)::S(I)
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