MESON Chess Problem Database

Problem Display
PID: 18358 (3rr1q1/3R2pN/6Q1/2n2p2/n4k1p/B3N3/3PP2P/1b3K1B w - - 0 1)

Whyatt, William Albert

2nd Comm., Glos Pracy, 1955

3rr1q1/3R2pN/6Q1/2n2p2/n4k1p/B3N3/3PP2P/1b3K1B

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Qd6#
    • 1...Re4
      • 2.Qxf5#
    • 1...Re5
      • 2.Qg5#
    • 1...Rf8
      • 2.Qd6#
    • 1...Ba2
      • 2.Qxf5#
    • 1...Sd3
      • 2.Qxf5#
    • 1...Se4
      • 2.Qxf5#
    • 1...Se6
      • 2.Bd6#
    • 1...h3
      • 2.Qg3#
  • Tries
    • 1.Sg4?
      • threat
        • 2.Qg5#
      • 1...Se4
        • 2.e3#
      • 1...Se6
        • 2.Bd6#
        • 2.e3#
      • 1...Qxh7!
  • Keys
    • 1.d4!
      • threat
        • 2.Qg5#
      • 1...Kxe3
        • 2.Bc1#
      • 1...Qxh7
        • 2.Sd5#
      • 1...Se4
        • 2.Sg2#
      • 1...Se6
        • 2.Sd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • K(c);S_FLIGHT::QAB1(H)
    • R(i);S_CUTB(a)::QAR1(H),XP(f)
    • R(i);SBLOCK::QAB1(H)
    • R(i);N_GUARD::QAB(H)
    • B(a);N_GUARD::QAR1(H),XP(f)
    • S(e);S_CUTB(a)::QAR1(H),XP(f)
    • S(e);OGATE::B(F)
    • P(d);N_GUARD::QAB1(H)
  • Tries
    • Try
      • S(G);
      • Threat
        • QAB1(H)
      • Vars
        • S(e);S_CUTR(i)::P(D)
      • Refutation
        • Q(j);XS(J)
  • Actual
    • P(C);
    • Threat
      • QAB1(H)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(G)::B(F)
      • Q(j);N_GUARD,XS(J)::S(G)
      • S(e);SBLOCK::S(G)
      • S(e);S_CUTQ(j)::S(G)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).