MESON Chess Problem Database

Problem Display
PID: 193895 (Q7/2R5/6K1/RNq5/1pk1pP2/3bn3/P1p2b2/8 w - - 0 1)

Westbury, Eric Ernest

Pittsburgh Gazette-Times, 1916

Q7/2R5/6K1/RNq5/1pk1pP2/3bn3/P1p2b2/8

#2

7 + 8

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qc6+
      • 2.Qxc6#
    • 1...Bf1
      • 2.Qxe4#
    • 1...Be2
      • 2.Qxe4#
    • 1...Sd1
      • 2.Qg8#
    • 1...Sf1
      • 2.Qg8#
    • 1...Sg2
      • 2.Qg8#
    • 1...Sg4
      • 2.Qg8#
    • 1...Sf5
      • 2.Qg8#
  • Tries
    • 1.Qd8?
      • threat
        • 2.Qd4#
      • 1...Qc6+
        • 2.Rxc6#
      • 1...Sd1
        • 2.Qg8#
      • 1...Sf1
        • 2.Qg8#
      • 1...Sg2
        • 2.Qg8#
      • 1...Sg4
        • 2.Qg8#
      • 1...Sf5
        • 2.Qg8#
      • 1...Sd5!
  • Keys
    • 1.Qh8!
      • threat
        • 2.Qd4#
      • 1...Qc6+
        • 2.Sd6#
      • 1...Kd5
        • 2.Qg8#
      • 1...Sd5
        • 2.Sd6#
      • 1...Sd1
        • 2.Qg8#
      • 1...Sf1
        • 2.Qg8#
      • 1...Sg2
        • 2.Qg8#
      • 1...Sg4
        • 2.Qg8#
      • 1...Sf5
        • 2.Qg8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • Q(h);CHECK,OGATEB::QAR2(G),XQ(h)
    • B(c);N_GUARD::QAR2(G),XP(g)
    • S(d);N_GUARD::QAB(G)
  • Tries
    • Try
      • Q(G);
      • Threat
        • QAR1(G)
      • Vars
        • Q(h);CHECK,OGATEB::R(F),XQ(h)
        • S(d);N_GUARD::QAB(G)
      • Refutation
        • S(d);
  • Actual
    • Q(G);
    • Threat
      • QAR1(G)
    • Vars
      • Q(h);CHECK::S(D)
      • K(f);N_SPINQ(h),S_FLIGHT::QAB(G)
      • S(d);SBLOCK::S(D)
      • S(d);N_GUARD::QAB(G)
HTML5 logo

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).