MESON Chess Problem Database

Problem Display
PID: 151979 (3n3q/2bN4/3p4/n2kNP2/K2P1p2/7R/8/1Q1R1B1b w - - 0 1)

Neill, Benjamin Milnes

Good Companions (January), 1915

3n3q/2bN4/3p4/n2kNP2/K2P1p2/7R/8/1Q1R1B1b

#2

9 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qf6
      • 2.Sxf6#
    • 1...Qxh3
      • 2.Sf6#
    • 1...Qh5
      • 2.Sf6#
    • 1...Qh7
      • 2.Sf6#
    • 1...Qg8
      • 2.Sf6#
    • 1...Be4
      • 2.Qb5#
    • 1...Bb6
      • 2.Sxb6#
    • 1...Bb8
      • 2.Sb6#
    • 1...Sb3
      • 2.Bc4#
    • 1...Sc4
      • 2.Bxc4#
    • 1...Sac6
      • 2.Bc4#
    • 1...Sab7
      • 2.Bc4#
  • Keys
    • 1.Sd3!
      • threat
        • 2.Sb4#
      • 1...Kc4
        • 2.Sb4#
        • 2.Sxf4#
      • 1...Kxd4
        • 2.Sc1#
        • 2.Se1#
        • 2.Sb2#
        • 2.Sf2#
        • 2.Sb4#
        • 2.Sxf4#
        • 2.S3c5#
        • 2.S3e5#
      • 1...Ke4
        • 2.Sb4#
      • 1...Kc6
        • 2.Qb5#
      • 1...Sac6
        • 2.Sxf4#
      • 1...Sdc6
        • 2.Sxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 11
  • Sets
    • Q(h);N_GUARD::S(I),XQ(h)
    • Q(h);N_GUARD,XR(D)::S(I)
    • Q(h);N_GUARD::S(I)
    • B(a);SBLOCK::QAR2(A)
    • B(f);N_GUARD::S(I),XB(f)
    • B(f);N_GUARD::S(I)
    • S(c);N_GUARD::B(C)
    • S(c);N_GUARD::B(C),XS(c)
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • K(d);S_FLIGHT::QAB(A)+S(G)
      • K(d);S_FLIGHT::QAB1(A)
      • S(c);SBLOCK::S(G),XP(b)
      • S(g);SBLOCK::S(G),XP(b)
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