MESON Chess Problem Database

Problem Display
PID: 58607 (1Q6/4p2K/1PB4B/NPk3rR/7b/Pp1RP1n1/4p2p/nbr1N3 w - - 0 1)

Salardini, Erio

Het Belgisch Schaakbord (L'Echiquier Belge), 1955

1Q6/4p2K/1PB4B/NPk3rR/7b/Pp1RP1n1/4p2p/nbr1N3

#2

12 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rd5
      • 2.Rxd5#
    • 1...Re5
      • 2.Rxe5#
    • 1...Bxd3+
      • 2.Sxd3#
    • 1...Sc2
      • 2.Rc3#
    • 1...Sf5
      • 2.Rd5#
    • 1...e5
      • 2.Bf8#
    • 1...e6
      • 2.Bf8#
  • Tries
    • 1.Rxg5+?
      • 1...Sf5
        • 2.Rd5#
      • 1...e5
        • 2.Bf8#
        • 2.Rxe5#
      • 1...Bxg5!
    • 1.Qa7?
      • threat
        • 2.b7#
      • 1...Rd5
        • 2.Rxd5#
      • 1...Bxd3+!
  • Keys
    • 1.Qd8!
      • threat
        • 2.Qd4#
      • 1...Bxd3+
        • 2.Sxd3#
      • 1...Rc4
        • 2.Sb7#
      • 1...Rd5
        • 2.Rxd5#
      • 1...Sc2
        • 2.Rc3#
      • 1...Sf5
        • 2.Rd5#
      • 1...e5
        • 2.Bf8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • R(j);OGATE::R1(G),XR(j)
    • R(j);OGATE::R(G),XR(j)
    • B(b);CHECK,XR(C)::S(A),XB(b)
    • S(a);N_PINR(C)::R(C)
    • S(g);N_PINR(C),N_SPINR(j)::R1(C)
    • P(k);N_SPINR(j),OGATEB::B(J)
    • P(k);OGATEB::B(J)
  • Tries
    • Try
      • R(G);CHECK,XR(j)
      • Vars
        • S(g);N_PINR(C),P_SPINS(g)::R1(C)
      • Refutation
        • B(h);XR(G)
    • Try
      • Q(L);
      • Threat
        • QAB(L)+P(H)
      • Vars
        • R(j);OGATE::R1(G),XR(j)
      • Refutation
        • B(b);CHECK,XR(C)
  • Actual
    • Q(L);
    • Threat
      • QAB1(L)
    • Vars
      • B(b);CHECK,XR(C)::S(A),XB(b)
      • R(c);SBLOCK::S(E)
      • R(j);OGATE::R1(G),XR(j)
      • S(a);N_PINR(C)::R(C)
      • S(g);N_PINR(C),N_SPINR(j)::R1(C)
      • P(k);N_SPINR(j),OGATEB::B(J)
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