MESON Chess Problem Database

Problem Display
PID: 84810 (Q4K2/1R2pBB1/2pnP3/N1bk4/r5R1/3P4/2NqP3/8 w - - 0 1)

Petite, Efren

Sakkelet, 1995

Q4K2/1R2pBB1/2pnP3/N1bk4/r5R1/3P4/2NqP3/8

#2

11 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Rb5?
      • threat
        • 2.Qxc6#
      • 1...Qxa5
        • 2.Se3#
      • 1...Rxa5
        • 2.Rd4#
      • 1...Sb7!
  • Keys
    • 1.Rd7!
      • threat
        • 2.Qxc6#
      • 1...Qxa5
        • 2.Rg5#
      • 1...Rxa5
        • 2.e4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(G);P_PINB(c),P_PINP(e)
      • Threat
        • QAB1(J),XP(e)
      • Vars
        • Q(a);N_GUARD,XS(E)::S(A)
        • R(b);N_GUARD,XS(E)::R1(D)
      • Refutation
        • S(f);N_SPINP(e)
  • Actual
    • R(G);P_PINP(e),P_PINS(f)
    • Threat
      • QAB1(J),XP(e)
    • Vars
      • Q(a);N_GUARD,XS(E)::R(D)
      • R(b);N_GUARD,XS(E)::P(B)
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