MESON Chess Problem Database

Problem Display
PID: 138358 (8/8/5N1n/2R4P/2K2k2/3B2RP/2pP1r1P/2Bb2N1 w - - 0 1)

Righi, Mario

Deutsche Schachzeitung, 1984

8/8/5N1n/2R4P/2K2k2/3B2RP/2pP1r1P/2Bb2N1

#2

11 + 5

14744 Nuova Antologia dei Problemisti Italiani 1992

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd2
      • 2.Bxd2#
    • 1...Re2
      • 2.Rf3#
    • 1...Bxh5
      • 2.Sxh5#
    • 1...Sg4
      • 2.Rf5#
    • 1...Sf5
      • 2.Rxf5#
    • 1...Sf7
      • 2.Rf5#
    • 1...Sg8
      • 2.Rf5#
  • Tries
    • 1.Rg4+?
      • 1...Sxg4
        • 2.Rf5#
      • 1...Bxg4!
  • Keys
    • 1.Be2!
      • threat
        • 2.d3#
        • 2.d4#
      • 1...Bxe2+
        • 2.d3#
      • 1...Rxe2
        • 2.Rf3#
      • 1...Rxh2
        • 2.Rf3#
      • 1...Rf3
        • 2.Rxf3#
      • 1...Sg4
        • 2.Rxg4#
      • 1...Sf5
        • 2.Rg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • R(c);OGATE,P_SPINR(c),XP(C)::B(A),XR(c)
    • R(c);N_GUARD,S_CUTB(a)::R1(F)
    • B(a);XP(J)::S(K),XB(a)
    • S(e);N_GUARD::R1(I)
    • S(e);N_GUARD::R1(I),XS(e)
  • Tries
    • Try
      • R(F);CHECK
      • Vars
        • S(e);XR(F)::R1(I)
      • Refutation
        • B(a);XR(F)
  • Actual
    • B(E);
    • Threat
      • DUALS(2)
    • Vars
      • B(a);CHECK,XB(E)::B(A)+P(C)
      • R(c);N_GUARD,XB(E)::R1(F)
      • R(c);N_GUARD,XP(D)::R1(F)
      • R(c);N_GUARD::R1(F),XR(c)
      • S(e);N_GUARD::R1(F),XS(e)
      • S(e);N_GUARD::R1(F)
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