MESON Chess Problem Database

Problem Display
PID: 138351 (n3b3/K2Q1p1q/1P1Pp3/1R3n2/pNkPB3/1pb5/1p6/3N4 w - - 0 1)

Righi, Mario

Deutsche Schachblatter, 1981

n3b3/K2Q1p1q/1P1Pp3/1R3n2/pNkPB3/1pb5/1p6/3N4

#2

9 + 11

14744 Nuova Antologia dei Problemisti Italiani 1992

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd4
      • 2.Bd3#
    • 1...Sxd4
      • 2.Se3#
  • Tries
    • 1.Sc2?
      • threat
        • 2.Rc5#
      • 1...Bxd4
        • 2.Sa3#
      • 1...Sxd4
        • 2.Sde3#
        • 2.Sa3#
        • 2.Sce3#
      • 1...Bb4
        • 2.Rxb4#
      • 1...bxc2!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Rc5#
      • 1...Kxb5
        • 2.Bd3#
      • 1...Bxd4
        • 2.Sa5#
      • 1...Sxd4
        • 2.Se5#
      • 1...Bb4
        • 2.Rxb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(c);P_PINP(F),SBLOCK,XP(C)::B(D)
    • S(f);N_GUARD,SBLOCK,XP(C)::S(A)
  • Tries
    • Try
      • S(B);
      • Threat
        • R1(E)
      • Vars
        • B(c);P_PINP(F),SBLOCK,XP(C)::S(B)
        • B(c);N_GUARD::R1(E),XB(c)
      • Refutation
        • P(b);XS(B)
  • Actual
    • S(B);
    • Threat
      • R1(E)
    • Vars
      • K(e);S_FLIGHT,XR(E)::B(D)
      • B(c);N_GUARD,P_PINP(F),SBLOCK,XP(C)::S(B)
      • S(f);SBLOCK,XP(C)::S(B)
      • B(c);N_GUARD::R1(E),XB(c)
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