MESON Chess Problem Database

Problem Display
PID: 109441 (8/B1p5/bqP3p1/p3p3/RP1kp3/r1RpN3/1P1K4/8 w - - 0 1)

Strebkovs, Andrejs

Phenix, 2004

8/B1p5/bqP3p1/p3p3/RP1kp3/r1RpN3/1P1K4/8

#2

8 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qc5
      • 2.Bxc5#
    • 1...Rxc3
      • 2.bxc3#
    • 1...Bc4
      • 2.Rxc4#
    • 1...Bb7
      • 2.Rc4#
    • 1...Bc8
      • 2.Rc4#
  • Tries
    • 1.bxa5+?
      • 1...Bc4
        • 2.Rcxc4#
        • 2.Raxc4#
      • 1...Rxa4!
  • Keys
    • 1.Rc5!
      • threat
        • 2.Rd5#
      • 1...Qxb4+
        • 2.Rc3#
      • 1...Qxc5
        • 2.Bxc5#
      • 1...Bc4
        • 2.Rxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • Q(h);OGATE::B(H),XQ(h)
    • R(a);OGATE,XR(C)::P(A),XR(a)
    • B(g);N_GUARD::R1(C),XB(g)
    • B(g);N_GUARD::R1(C)
  • Tries
    • Try
      • P(F);CHECK,XP(e)
      • Refutation
        • R(a);XR(E)
  • Actual
    • R(C);N_PINQ(h)
    • Threat
      • R1(C)
    • Vars
      • Q(h);CHECK,OGATEB,P_SPINQ(h),XP(F)::B(H)+R(C)
      • Q(h);OGATE,P_SPINQ(h),XR(C)::B(H),XQ(h)
      • B(g);N_GUARD::R1(C),XB(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).