MESON Chess Problem Database

Problem Display
PID: 133134 (7n/4B3/3R1p2/2KpkN2/R5Pb/4Pn2/2B3N1/3r1r1q w - - 0 1)

Boyer, Jean-Pierre

Themes-64, 1983

7n/4B3/3R1p2/2KpkN2/R5Pb/4Pn2/2B3N1/3r1r1q

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Be1
      • 2.Bxf6#
    • 1...Bf2
      • 2.Bxf6#
    • 1...Bg3
      • 2.Bxf6#
    • 1...Sg5
      • 2.Bxf6#
  • Tries
    • 1.Sf4?
      • threat
        • 2.Re6#
      • 1...Sg5
        • 2.Bxf6#
      • 1...Sd4!
    • 1.Sg7?
      • threat
        • 2.Re6#
      • 1...Sd4
        • 2.Rxd5#
      • 1...Sg5!
  • Keys
    • 1.Raa6!
      • threat
        • 2.Re6#
      • 1...Sd4
        • 2.Rxd5#
      • 1...Sg5
        • 2.Bxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • B(e);N_GUARD::B(I),XP(h)
    • B(e);N_GUARD,P_PINP(C)::B(I),XP(h)
    • S(d);S_CUTB(e)::B(I),XP(h)
  • Tries
    • Try
      • S(B);
      • Threat
        • R1(H)
      • Vars
        • S(d);S_CUTB(e)::B(I),XP(h)
      • Refutation
        • S(d);
    • Try
      • S(G);
      • Threat
        • R1(H)
      • Vars
        • S(d);S_CUTR(a)::R1(H),XP(f)
      • Refutation
        • S(d);
  • Actual
    • R(D);
    • Threat
      • R1(H)
    • Vars
      • S(d);S_CUTR(a)::R1(H),XP(f)
      • S(d);S_CUTB(e)::B(I),XP(h)
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