MESON Chess Problem Database

Problem Display
PID: 164592 (2K5/1B1p4/n2b4/1pp5/1PkN1n2/1R1pQ3/r7/1R6 w - - 0 1)

Jankevics, Karlis

Sachmatija, 2007

2K5/1B1p4/n2b4/1pp5/1PkN1n2/1R1pQ3/r7/1R6

#2

7 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Ra3
      • 2.Rc1#
    • 1...Ra4
      • 2.Rc1#
    • 1...Ra5
      • 2.Rc1#
    • 1...Se2
      • 2.Qxd3#
    • 1...Sg2
      • 2.Qxd3#
    • 1...Sh3
      • 2.Qxd3#
    • 1...Sd5
      • 2.Qxd3#
    • 1...Sh5
      • 2.Qxd3#
    • 1...Se6
      • 2.Qxd3#
    • 1...Sg6
      • 2.Qxd3#
    • 1...d2
      • 2.Rc3#
      • 2.Qc3#
  • Tries
    • 1.Bd5+?
      • 1...Sxd5
        • 2.Qxd3#
      • 1...Kxd5!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Qe4#
      • 1...Kd5
        • 2.Sa5#
      • 1...cxb4
        • 2.Qd4#
      • 1...Rb2
        • 2.Sa5#
      • 1...Be5
        • 2.Sxe5#
      • 1...Re2
        • 2.Sa5#
      • 1...Se2
        • 2.Qxd3#
      • 1...Se6
        • 2.Qxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 8
  • Sets
    • R(a);N_GUARD::R(A)
    • S(d);N_GUARD::QAB1(C),XP(b)
  • Tries
    • Try
      • B(F);CHECK
      • Vars
        • S(d);SBLOCK,XB(F)::QAB1(C),XP(b)
      • Refutation
        • K(c);S_FLIGHT,XB(F)
  • Actual
    • S(E);
    • Threat
      • QAR2(C)
    • Vars
      • K(c);S_FLIGHT::B(F)+S(E)
      • P(f);N_GUARD,XP(D)::QAR1(C)
      • R(a);N_GUARD::S(E)
      • B(h);N_GUARD::S(E),XB(h)
      • S(d);N_GUARD::QAB1(C),XP(b)
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).