MESON Chess Problem Database

Problem Display
PID: 190322 (5R2/2pR4/5b2/3PkN2/2p5/2K2Ppn/3P2P1/1BB5 w - - 0 1)

Jankevics, Karlis

Sachova skladba, 2010

5R2/2pR4/5b2/3PkN2/2p5/2K2Ppn/3P2P1/1BB5

#2

10 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4+
      • 2.d4#
  • Tries
    • 1.Kxc4?
      • threat
        • 2.d4#
      • 1...Kf4
        • 2.d4#
      • 1...c5!
    • 1.Sh4?
      • threat
        • 2.Sg6#
      • 1...Kf4+
        • 2.d4#
      • 1...Bxh4
        • 2.Rf5#
      • 1...Sf4!
    • 1.Re8+?
      • 1...Kf4+
        • 2.d4#
      • 1...Be7!
  • Keys
    • 1.Se7!
      • threat
        • 2.Sg6#
      • 1...Kf4+
        • 2.d4#
      • 1...Bxe7
        • 2.Rf5#
      • 1...Sf4
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(d);CHECK,S_FLIGHT::B(B)+P(C)
  • Tries
    • Try
      • K(E);P-FLIGHT,XP(c)
      • Threat
        • P(C)
      • Vars
        • K(d);S_FLIGHT::B(B)+P(C)
      • Refutation
        • P(f);
    • Try
      • S(H);
      • Threat
        • S(H)
      • Vars
        • K(d);CHECK,P_SPINB(e),S_FLIGHT::B(B)+P(C)
        • B(e);OGATE,XS(H)::R1(J)
      • Refutation
        • S(b);
    • Try
      • R(J);CHECK
      • Vars
        • K(d);CHECK,S_FLIGHT::B(B)+P(C)
      • Refutation
        • B(e);P_SPINB(e)
  • Actual
    • S(H);
    • Threat
      • S(H)
    • Vars
      • K(d);CHECK,P_SPINB(e),S_FLIGHT::B(B)+P(C)
      • B(e);OGATE,XS(H)::R1(J)
      • S(b);SBLOCK::S(H)
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).