MESON Chess Problem Database

Problem Display
PID: 132365 (1KB1nB2/2p5/N4p2/1P1k3N/nR1P4/3P4/1p4p1/2R2r2 w - - 0 1)

Parrinello, Mario

2nd HM., The Problemist, 1984/II

1KB1nB2/2p5/N4p2/1P1k3N/nR1P4/3P4/1p4p1/2R2r2

#2

10 + 8

14744 Nuova Antologia dei Problemisti Italiani 1992

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc1
      • 2.Sf4#
    • 1...Rd1
      • 2.Sf4#
    • 1...Re1
      • 2.Sf4#
    • 1...Rg1
      • 2.Sf4#
    • 1...Rh1
      • 2.Sf4#
    • 1...Rf4
      • 2.Sxf4#
    • 1...Sc5
      • 2.Rxc5#
    • 1...Sb6
      • 2.Rc5#
    • 1...Sd6
      • 2.Sxc7#
    • 1...Sg7
      • 2.Sxc7#
  • Tries
    • 1.Sxf6+?
      • 1...Sxf6
        • 2.Sxc7#
      • 1...Rxf6!
    • 1.Sg7?
      • threat
        • 2.Be6#
      • 1...Sxg7
        • 2.Sxc7#
      • 1...Sc5
        • 2.Rxc5#
      • 1...Re1!
    • 1.Sc5?
      • threat
        • 2.Be6#
      • 1...Sxc5
        • 2.Rxc5#
      • 1...Re1
        • 2.Sf4#
      • 1...Sg7!
    • 1.Re1?
      • threat
        • 2.Be6#
      • 1...Rxe1
        • 2.Sf4#
      • 1...Sg7
        • 2.Sxc7#
      • 1...Sc5!
  • Keys
    • 1.Rc6!
      • threat
        • 2.Be6#
      • 1...Re1
        • 2.Sf4#
      • 1...Sc5
        • 2.Rxc5#
      • 1...Sd6
        • 2.Sxc7#
      • 1...Sg7
        • 2.Sxc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • R(a);N_GUARD,XR(A)::S(F)
    • R(a);N_GUARD::S(F)
    • R(a);N_GUARD::S(F),XR(a)
    • S(d);N_GUARD::R1(A),XS(d)
    • S(d);N_GUARD::R1(A)
    • S(h);N_GUARD::S(G),XP(g)
  • Tries
    • Try
      • S(F);CHECK,XP(f)
      • Vars
        • S(h);XS(F)::S(G),XP(g)
      • Refutation
        • R(a);XS(F)
    • Try
      • S(F);
      • Threat
        • B(I)
      • Vars
        • S(h);N_GUARD,XS(F)::S(G),XP(g)
        • S(d);N_GUARD::R1(A),XS(d)
      • Refutation
        • R(a);
    • Try
      • S(G);
      • Threat
        • B(I)
      • Vars
        • S(d);OGATE,XS(G)::R1(A),XS(d)
        • R(a);N_GUARD::S(F)
      • Refutation
        • S(h);
    • Try
      • R(A);
      • Threat
        • B(I)
      • Vars
        • R(a);N_GUARD,XR(A)::S(F)
        • S(h);N_GUARD::S(G),XP(g)
      • Refutation
        • S(d);
  • Actual
    • R(A);
    • Threat
      • B(I)
    • Vars
      • R(a);N_GUARD::S(F)
      • S(d);N_GUARD::R1(A),XS(d)
      • S(h);N_GUARD::S(G),XP(g)
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