MESON Chess Problem Database

Problem Display
PID: 2804 (8/n2rp1B1/4B1N1/R2b4/2k1p3/Pp2R3/2qP1p1p/3r2bK w - - 0 1)

Williams, Philip Hamilton

Harrow Observer, 1906

8/n2rp1B1/4B1N1/R2b4/2k1p3/Pp2R3/2qP1p1p/3r2bK

#2

8 + 12

2794 Terms & Themes of Chess Problems 1907
15351 SCPF/BCPS Black Books 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Qb1
      • 2.Rc3#
    • 1...Qa2
      • 2.Rc3#
    • 1...Qc3
      • 2.Rxc3#
    • 1...Rb7
      • 2.Bxd5#
    • 1...Rc7
      • 2.Bxd5#
  • Keys
    • 1.d4!
      • threat
        • 2.Rc5#
      • 1...exd4 ep+
        • 2.Re4#
      • 1...Rxd4
        • 2.Se5#
      • 1...Rc7
        • 2.Bxd5#
      • 1...Sb5
        • 2.Ra4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • Q(c);N_GUARD::R1(D)
    • Q(c);N_GUARD::R1(D),XQ(c)
    • R(k);N_GUARD::B(F),XB(i)
  • Actual
    • P(B);
    • Threat
      • R1(E)
    • Vars
      • P(h);CHECK,EP,OGATEB,XP(B)::R(D)
      • R(a);SBLOCK,XP(B)::S(G)
      • R(k);N_GUARD::B(F),XB(i)
      • S(j);SBLOCK::R(E)
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