MESON Chess Problem Database

Problem Display
PID: 61824 (8/2Qpp1KB/8/6B1/3kP2R/5p2/n2NbN2/q1n5 w - - 0 1)

Charlick, Arthur Robert Baker

Het Belgisch Schaakbord (L'Echiquier Belge), 1956

8/2Qpp1KB/8/6B1/3kP2R/5p2/n2NbN2/q1n5

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bf1
      • 2.Sxf3#
    • 1...Bd3
      • 2.Sxf3#
    • 1...Bb5
      • 2.Sxf3#
    • 1...Ba6
      • 2.Sxf3#
    • 1...Sb3
      • 2.Sxb3#
    • 1...Sd3
      • 2.Sb3#
    • 1...d5
      • 2.e5#
  • Tries
    • 1.Qb6+?
      • 1...Ke5
        • 2.Sg4#
        • 2.Bf4#
      • 1...Kc3!
    • 1.Qc4+?
      • 1...Ke5
        • 2.Bf4#
        • 2.Qd5#
      • 1...Bxc4!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Qc4#
      • 1...Kxd3+
        • 2.e5#
      • 1...Bxd3
        • 2.Sxf3#
      • 1...Sxd3
        • 2.Sb3#
      • 1...Qc3
        • 2.Qxd7#
      • 1...d5
        • 2.e5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • B(d);N_GUARD::S(A),XP(e)
    • S(b);N_GUARD::S(A),XS(b)
    • S(b);N_GUARD::S(A)
    • P(g);SBLOCK::R(D)+P(C)
  • Tries
    • Try
      • Q(F);CHECK
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • Q(F);CHECK
      • Refutation
        • B(d);XQ(F)
  • Actual
    • S(B);
    • Threat
      • QAR1(F)
    • Vars
      • K(f);CHECK,P-FLIGHT,XS(B)::B(H)+P(C)
      • B(d);N_GUARD,SBLOCK,XS(B)::S(A),XP(e)
      • S(b);N_GUARD,SBLOCK,XS(B)::S(A)
      • Q(a);SBLOCK::QAR(F),XP(g)
      • P(g);SBLOCK::R(D)+P(C)
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