MESON Chess Problem Database

Problem Display
PID: 89986 (5N2/1pp1B2K/1pk2pB1/4P3/Pn2RR2/4rp2/2b5/2Q5 w - - 0 1)

Onkoud, Abdelaziz

Die Schwalbe, 1998

5N2/1pp1B2K/1pk2pB1/4P3/Pn2RR2/4rp2/2b5/2Q5

#2

9 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sd5
      • 2.Be8#
      • 2.Rc4#
  • Tries
    • 1.Rd4?
      • threat
        • 2.Rxf6#
      • 1...fxe5
        • 2.Rf6#
      • 1...Sd5
        • 2.Rc4#
      • 1...f5
        • 2.Be8#
      • 1...Rxe5!
  • Keys
    • 1.Bf7!
      • threat
        • 2.Rxf6#
      • 1...fxe5
        • 2.Rf6#
      • 1...Rd3
        • 2.Rc4#
      • 1...Sd5
        • 2.Be8#
      • 1...f5
        • 2.Rc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);P_SPINB(F)
      • Threat
        • R(D),XP(g)
      • Vars
        • P(g);XP(E)::R(D)
        • S(d);SBLOCK::R(C)
        • P(g);N_PINB(F)::B(F)
      • Refutation
        • R(b);XP(E)
  • Actual
    • B(F);P_SPINR(C)
    • Threat
      • R(D),XP(g)
    • Vars
      • P(g);XP(E)::R(D)
      • R(b);N_PINR(C)::R(C)
      • S(d);SBLOCK::B(F)
      • P(g);N_PINR(C)::R(C)
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