MESON Chess Problem Database

Problem Display
PID: 133085 (6r1/8/5N2/1R1R2P1/3N3k/5P2/7K/3b4 w - - 0 1)

Ferron de la Fuente, Ernesto

Problem Observer, 2006

6r1/8/5N2/1R1R2P1/3N3k/5P2/7K/3b4

#2

7 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Bxf3
      • 2.Sxf3#
  • Tries
    • 1.Rf5?
      • threat
        • 2.Rf4#
      • 1...Bxf3
        • 2.Sxf3#
      • 1...Rxg5!
    • 1.g6?
      • threat
        • 2.Rh5#
      • 1...Bxf3
        • 2.Sxf3#
      • 1...Rh8!
  • Keys
    • 1.Rb4!
      • threat
        • 2.Sc2#
        • 2.Se2#
        • 2.Sb3#
        • 2.Sb5#
        • 2.Sc6#
        • 2.Se6#
      • 1...Rxg5
        • 2.Sf5#
      • 1...Bxf3
        • 2.Sxf3#
      • 1...Rb8
        • 2.Sb5#
      • 1...Rc8
        • 2.Sc6#
      • 1...Re8
        • 2.Se6#
      • 1...Bc2
        • 2.Sxc2#
      • 1...Be2
        • 2.Sxe2#
      • 1...Bb3
        • 2.Sxb3#

This is after

After a problem by J Hartong.

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • B(a);XP(B)::S(C),XB(a)
  • Tries
    • Try
      • R(E);
      • Threat
        • R(E)
      • Vars
        • B(a);XP(B)::S(C),XB(a)
      • Refutation
        • R(c);XP(F)
    • Try
      • P(F);
      • Threat
        • R1(E)
      • Vars
        • B(a);XP(B)::S(C),XB(a)
      • Refutation
        • R(c);
  • Actual
    • R(D);
    • Threat
      • DUALS(6)
    • Vars
      • R(c);SBLOCK,XP(F)::R(D)+S(C),DCHECK
      • B(a);XP(B)::R(D)+S(C),DCHECK,XB(a)
      • R(c);::R(D)+S(C)
      • B(a);::R(D)+S(C),XB(a)
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