MESON Chess Problem Database

Problem Display
PID: 72024 (2rQ2qb/2N4r/pP1N2p1/k3n3/P1pB2n1/K1pp1b2/8/8 w - - 0 1)

Lyris, Basil D

3rd Prize, To Mat, 1954

2rQ2qb/2N4r/pP1N2p1/k3n3/P1pB2n1/K1pp1b2/8/8

#2

7 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Bd1
      • 2.Sb7#
    • 1...Be2
      • 2.Sb7#
    • 1...Bb7
      • 2.Sxb7#
    • 1...Sc6
      • 2.Sb7#
    • 1...Sf7
      • 2.Sxc4#
  • Keys
    • 1.Sd5!
      • threat
        • 2.Bxc3#
      • 1...Sc6
        • 2.Sxc4#
      • 1...Sd7
        • 2.Sb7#
      • 1...Sf7
        • 2.Sb7#
      • 1...c2
        • 2.Bc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • B(c);N_GUARD::S(E)
    • B(c);N_GUARD::S(E),XB(c)
    • S(g);S_CUTB(c)::S(E)
    • S(g);N_GUARD,S_CUTQ(l)::S(E),XP(d)
  • Actual
    • S(F);
    • Threat
      • B(C),XP(a)
    • Vars
      • S(g);N_GUARD,S_CUTR(k)::S(E),XP(d)
      • S(g);S_CUTR(j)::S(E)
      • P(a);::B(C)
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Developed and maintained by Brian Stephenson.
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