MESON Chess Problem Database

Problem Display
PID: 144758 (1n5b/2Pp1Q2/1K1P1P1P/1RN1k1N1/2p2p1p/2P1q2B/6nB/4Rr2 w - - 0 1)

Salardini, Erio

Chess, 1954

1n5b/2Pp1Q2/1K1P1P1P/1RN1k1N1/2p2p1p/2P1q2B/6nB/4Rr2

#2

13 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd6
      • 2.cxb8Q#
      • 2.cxb8B#
    • 1...Qxe1
      • 2.Sce4#
      • 2.Sb7#
    • 1...Qe2
      • 2.Sce4#
      • 2.Sb7#
    • 1...Qe4
      • 2.Scxe4#
      • 2.Sb7#
  • Tries
    • 1.Sf3+?
      • 1...Kxd6
        • 2.cxb8Q#
        • 2.cxb8B#
        • 2.c8S#
      • 1...Rxf3!
    • 1.Bxd7?
      • threat
        • 2.Qe6#
      • 1...Kxd6
        • 2.cxb8Q#
        • 2.cxb8B#
      • 1...Sxd7+!
    • 1.Rxe3+?
      • 1...Kxd6
        • 2.Sce4#
        • 2.Sb7#
        • 2.cxb8Q#
        • 2.cxb8B#
        • 2.c8S#
      • 1...Sxe3!
    • 1.Qd5+?
      • 1...Kxf6
        • 2.Qf5#
      • 1...Kxd5!
  • Keys
    • 1.Qh5!
      • threat
        • 2.Se4#
      • 1...Kd5
        • 2.Se4#
      • 1...Kxd6
        • 2.Sf7#
      • 1...Kxf6
        • 2.Sh7#
      • 1...Bxf6
        • 2.Sf7#
      • 1...Qe2
        • 2.Sce4#
      • 1...Qe4
        • 2.Scxe4#
        • 2.Sgxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(g);N_SPINQ(c),S_FLIGHT,XP(I)::PXS(i)=Q
  • Tries
    • Try
      • S(G);CHECK
      • Refutation
        • R(a);XS(G)
    • Try
      • B(D);XP(h)
      • Threat
        • QAR1(M)
      • Vars
        • K(g);N_SPINQ(c),S_FLIGHT,XP(I)::PXS(i)=Q
      • Refutation
        • S(i);CHECK,XB(D)
    • Try
      • R(A);CHECK,N_SPINS(F),XQ(c)
      • Refutation
        • S(b);XR(A)
    • Try
      • Q(M);CHECK
      • Vars
        • K(g);N_SPINP(e),N_SPINQ(c),OGATE,S_FLIGHT,XP(J)::QAR1(M)
      • Refutation
        • K(g);N_SPINP(e),N_SPINQ(c),P-FLIGHT,XQ(M)
  • Actual
    • Q(M);
    • Threat
      • QAR(M)+S(G)
    • Vars
      • K(g);N_SPINP(e),N_SPINQ(c),P-FLIGHT::QAR(M)+S(G)
      • K(g);N_SPINQ(c),S_FLIGHT,XP(I)::S(G)
      • K(g);N_SPINP(e),N_SPINQ(c),S_FLIGHT,XP(J)::S(G)
      • B(j);SBLOCK,XP(J)::QAR(M)+S(G),DCHECK
      • Q(c);N_PINS(F)::R(E)+S(F)
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