MESON Chess Problem Database

Problem Display
PID: 168326 (1R6/B3p3/8/1N1n2p1/PPkpP1Br/KR1n2b1/8/4N3 w - - 0 1)

Petite, Efren

Sachove umeni (Ceskoslovensky sach), 1998

1R6/B3p3/8/1N1n2p1/PPkpP1Br/KR1n2b1/8/4N3

#2

10 + 8

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...e5
      • 2.Sd6#
  • Tries
    • 1.Be6?
      • threat
        • 2.Bxd5#
      • 1...Sxb4
        • 2.Rxb4#
      • 1...Sf4
        • 2.Rc8#
      • 1...Rxe4!
    • 1.Rc8+?
      • 1...Sc5
        • 2.Rxc5#
      • 1...Sc7
        • 2.Be6#
      • 1...Bc7!
  • Keys
    • 1.Be2!
      • threat
        • 2.Bxd3#
      • 1...Sxb4
        • 2.Rxb4#
      • 1...Sf4
        • 2.Rc8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • P(h);N_GUARD,S_CUTB(b)::S(H)
  • Tries
    • Try
      • B(G);P_PINS(f)
      • Threat
        • B(G),XS(f)
      • Vars
        • S(a);OGATE,XP(E)::R1(C),XS(a)
        • S(a);N_GUARD,S_CUTB(b)::R(J)
      • Refutation
        • R(e);XP(F)
    • Try
      • R(J);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::R1(J),XS(a)
        • S(f);P_SPINS(f),S_CUTB(b),S_CUTS(a)::B(G)
      • Refutation
        • B(b);P_SPINB(b)
  • Actual
    • B(G);P_PINS(a)
    • Threat
      • B(G),XS(a)
    • Vars
      • S(f);OGATE,XP(E)::R1(C),XS(f)
      • S(f);N_GUARD,S_CUTB(b)::R(J)
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