MESON Chess Problem Database

Problem Display
PID: 278183 (r6N/5p2/5R2/4N1Pp/p3KBBk/4p2p/4p2P/8 w - - 0 1)

Petite, Efren

Phenix, 2007

r6N/5p2/5R2/4N1Pp/p3KBBk/4p2p/4p2P/8

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...hxg4
      • 2.Rh6#
  • Tries
    • 1.Be6?
      • threat
        • 2.Sf3#
      • 1...fxe6
        • 2.Shg6#
      • 1...e1S!
  • Keys
    • 1.Kf5!
      • threat
        • 2.Sf3#
        • 2.Bg3#
      • 1...hxg4
        • 2.Rh6#
      • 1...e1Q
        • 2.Sf3#
      • 1...e1S
        • 2.Bg3#
      • 1...e1B
        • 2.Sf3#
      • 1...Ra5
        • 2.Bg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(f);OGATEB,XB(D)::R(G)
  • Tries
    • Try
      • B(D);
      • Threat
        • S(E)
      • Vars
        • P(g);N_GUARD,XB(D)::S(H)
      • Refutation
        • P(a);
  • Actual
    • K(B);S_FLIGHT
    • Threat
      • DUALS(2)
    • Vars
      • P(f);OGATEB,XB(D)::R(G)
      • P(a);::S(E)
      • P(a);::B(C)
      • R(h);P_PINS(E),SBLOCK::B(C)
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