MESON Chess Problem Database

Problem Display
PID: 227119 (1Q2R3/8/4n3/b1p1R3/1rPkN3/2p1n3/4PPN1/4B2K w - - 0 1)

Fastosky, Pedro

L'Italia Scacchistica, 1968

1Q2R3/8/4n3/b1p1R3/1rPkN3/2p1n3/4PPN1/4B2K

#2

10 + 7

15601 Albrecht-Leiss-Degener Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc4
      • 2.fxe3#
    • 1...Sxc4
      • 2.Bxc3#
  • Tries
    • 1.Qd6+?
      • 1...Sd5
        • 2.Qxd5#
      • 1...Kxc4!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Re4#
      • 1...Kxe5
        • 2.Bxc3#
      • 1...Rxc4
        • 2.Sb5#
      • 1...Sxc4
        • 2.Sf5#
      • 1...Sg5
        • 2.fxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(c);SBLOCK,XP(F)::P(D),XS(b)
    • S(b);SBLOCK,XP(F)::B(A),XP(a)
  • Tries
    • Try
      • Q(I);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::QAR1(I),XS(b)
      • Refutation
        • K(d);P-FLIGHT,XP(F)
  • Actual
    • S(G);
    • Threat
      • R1(H)
    • Vars
      • K(d);P_SPINS(g),S_FLIGHT,XR(H)::B(A),XP(a)
      • R(c);N_GUARD,SBLOCK,XP(F)::S(G)
      • S(b);N_GUARD,SBLOCK,XP(F)::S(G)
      • S(g);::P(D),XS(b)
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