MESON Chess Problem Database

Problem Display
PID: 157766 (8/1pp5/1N1p4/6R1/3kp1p1/1b1N3r/1K2RP1B/1B6 w - - 0 1)

Petite, Efren

Probleemblad, 1954

8/1pp5/1N1p4/6R1/3kp1p1/1b1N3r/1K2RP1B/1B6

#2

8 + 8

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Re3
      • 2.fxe3#
    • 1...Bd1
      • 2.Rd5#
    • 1...Bc2
      • 2.Rd5#
    • 1...Ba4
      • 2.Rd5#
    • 1...Bd5
      • 2.Rxd5#
    • 1...e3
      • 2.Rxg4#
    • 1...d5
      • 2.Be5#
  • Keys
    • 1.Sc5!
      • threat
        • 2.Rxe4#
      • 1...Bd5
        • 2.Rxd5#
      • 1...d5
        • 2.Se6#
      • 1...Re3
        • 2.fxe3#
      • 1...Bc2
        • 2.Rd5#
      • 1...e3
        • 2.Sxb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • R(b);OGATE::P(D),XR(b)
    • B(a);N_GUARD::R1(G)
    • B(a);N_GUARD::R1(G),XB(a)
    • P(d);OGATEB::R(G),XP(e)
    • P(f);N_GUARD::B(E)
  • Actual
    • S(F);
    • Threat
      • R1(C),XP(d)
    • Vars
      • B(a);N_GUARD::R1(G),XB(a)
      • P(f);S_CUTB(a)::S(F)
      • R(b);OGATE::P(D),XR(b)
      • B(a);N_GUARD::R1(G)
      • P(d);S_CUTR(b)::S(F),XB(a)
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