MESON Chess Problem Database

Problem Display
PID: 162981 (kb6/1p6/2N5/6r1/B7/R6r/6Pp/5R1K w - - 0 1)

Placanico, Pietro L

Best Problems, 2012

kb6/1p6/2N5/6r1/B7/R6r/6Pp/5R1K

#2

6 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Bg3
      • 2.Bb5#
    • 1...Be5
      • 2.Bb3#
    • 1...bxc6
      • 2.Bxc6#
  • Tries
    • 1.Bb3+?
      • 1...Ba7
        • 2.Rf8#
        • 2.Rxa7#
      • 1...Ra5!
    • 1.Bb5+?
      • 1...Ba7
        • 2.Rf8#
        • 2.Rxa7#
      • 1...Rxa3!
  • Keys
    • 1.Rf8!
      • threat
        • 2.Rxb8#
      • 1...bxc6
        • 2.Bxc6#
      • 1...Rh8
        • 2.Bb5#
      • 1...Rg8
        • 2.Bb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(f);N_GUARD,S_CUTR(b)::R(D)+B(E)
    • B(f);N_GUARD,S_CUTR(c)::R(D)+B(E)
    • P(d);OGATE,XS(F)::R(D)+B(E),DCHECK,XP(d)
  • Tries
    • Try
      • B(E);CHECK
      • Refutation
        • R(c);P_SPINR(c)
    • Try
      • B(E);CHECK
      • Refutation
        • R(b);XR(D)
  • Actual
    • R(A);P_PINB(f)
    • Threat
      • R1(A),XB(f)
    • Vars
      • P(d);OGATE,XS(F)::R(D)+B(E),DCHECK,XP(d)
      • R(b);N_GUARD::R(D)+B(E)
      • R(c);N_GUARD::R(D)+B(E)
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