MESON Chess Problem Database

Problem Display
PID: 6551 (2B3R1/4B2K/r3PN1p/R1N2k1p/3p1pp1/6p1/8/1b2r3 w - - 0 1)

Cristoffanini, Guido

Revista Romana de Sah, 1931

2B3R1/4B2K/r3PN1p/R1N2k1p/3p1pp1/6p1/8/1b2r3

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5+
      • 2.Sd3#
    • 1...Rd1
      • 2.Sxa6#
    • 1...Rf1
      • 2.Sxa6#
    • 1...Rg1
      • 2.Sxa6#
    • 1...Rh1
      • 2.Sxa6#
    • 1...Rexe6
      • 2.Sxa6#
    • 1...Raxe6
      • 2.Sce4#
  • Tries
    • 1.Kxh6?
      • threat
        • 2.Rg5#
      • 1...Ke5
        • 2.Sd3#
        • 2.Sxa6#
      • 1...f3!
    • 1.Sb3+?
      • 1...Re5
        • 2.Sxd4#
      • 1...Rxa5!
    • 1.Sd3+?
      • 1...Re5
        • 2.Rxe5#
      • 1...Rxa5!
  • Keys
    • 1.Rf8!
      • threat
        • 2.Sfd7#
      • 1...Ke5+
        • 2.Sd3#
      • 1...Kg5+
        • 2.Sfe4#
      • 1...Rexe6
        • 2.Sxa6#
      • 1...Raxe6
        • 2.Sce4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • K(g);CHECK,P-FLIGHT::R(A)+S(B),DCHECK
    • R(b);N_GUARD::R(A)+S(B),XR(i)
    • R(b);N_GUARD,P_SPINR(b),XP(C)::R(A)+S(B),XR(i)
    • R(i);N_GUARD,P_SPINR(i),XP(C)::R(A)+S(B)
  • Tries
    • Try
      • K(F);P-FLIGHT,XP(j)
      • Threat
        • R1(H)
      • Refutation
        • P(e);
    • Try
      • S(B);CHECK
      • Vars
        • R(b);P_SPINR(b)::S(B),XP(d)
      • Refutation
        • R(i);XR(A)
    • Try
      • S(B);CHECK
      • Vars
        • R(b);N_GUARD,P_SPINR(b)::R1(A),XR(b)
      • Refutation
        • R(i);XR(A)
  • Actual
    • R(H);
    • Threat
      • R(H)+S(D)
    • Vars
      • K(g);CHECK,P-FLIGHT::R(A)+S(B),DCHECK
      • K(g);CHECK,P-FLIGHT::B(E)+S(D),DCHECK
      • R(b);N_GUARD,P_SPINR(b),XP(C)::R(A)+S(B),XR(i)
      • R(i);N_GUARD,P_SPINR(i),XP(C)::R(A)+S(B)
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