MESON Chess Problem Database

Problem Display
PID: 219057 (8/8/3bpp2/4k3/4p3/2r1P3/1B2Q3/2RK4 w - - 0 1)

Faysse Pere, J

Baltimore American and Commercial Advertiser, 1881

8/8/3bpp2/4k3/4p3/2r1P3/1B2Q3/2RK4

#2

5 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kf5
      • 2.Qh5#
  • Tries
    • 1.Bxc3+?
      • 1...Kf5
        • 2.Qh5#
      • 1...Kd5!
    • 1.Qh2+?
      • 1...Kf5
        • 2.Qh5#
      • 1...Kd5!
  • Keys
    • 1.Qb5+!
      • 1...Bc5
        • 2.Qxc5#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(c);N_SPINR(a),P-FLIGHT::QAR2(D)
  • Tries
    • Try
      • B(C);CHECK,XR(a)
      • Vars
        • K(c);P-FLIGHT::QAR2(D)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(D);CHECK
      • Vars
        • K(c);N_SPINR(a),P-FLIGHT::QAR2(D)
      • Refutation
        • K(c);N_SPINR(a),P-FLIGHT
  • Actual
    • Q(D);CHECK
    • Vars
      • B(d);N_GUARD,P_SPINB(d)::QAR2(D),XB(d)
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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).