Problem Display
PID: 79790 (1K6/4pN1b/7p/2p5/R1PkP1n1/rPR3P1/1Qpn3b/2B4B w - - 0 1)

Pituk, Alexander

Il Problema, 1932

1K6/4pN1b/7p/2p5/R1PkP1n1/rPR3P1/1Qpn3b/2B4B

#2

11 + 10


SOLUTION


  • SOUND
  • Sets
    • 1...Rxb3+
      • 2.Rxb3#
    • 1...Bxg3+
      • 2.Rxg3#
    • 1...Bxe4
      • 2.Rf3#
    • 1...Sf1
      • 2.Re3#
    • 1...Sxb3
      • 2.Rxb3#
      • 2.Re3#
    • 1...Sf3
      • 2.Re3#
    • 1...Sxc4
      • 2.Re3#
      • 2.Raxc4#
  • Keys
    • 1.Sd8!
      • threat
        • 2.Sc6#
      • 1...Rxb3+
        • 2.Rxb3#
      • 1...Bxg3+
        • 2.Rxg3#
      • 1...Ke5
        • 2.Rd3#
      • 1...Bxe4
        • 2.Rf3#
      • 1...Sf3
        • 2.Re3#
      • 1...Se5
        • 2.Se6#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(d);CHECK,OGATE,XP(D)::QAB(C)+R(E),XR(d)
    • B(c);CHECK,OGATE,XP(F)::QAB(C)+R(E),XB(c)
    • B(j);SBLOCK,XP(I)::QAB(C)+R(E)
    • S(b);::QAB(C)+R(E)
  • Actual
    • S(J);
    • Threat
      • S(J)
    • Vars
      • R(d);CHECK,OGATE,XP(D)::QAB(C)+R(E),XR(d)
      • B(c);CHECK,OGATE,XP(F)::QAB(C)+R(E),XB(c)
      • K(e);N_PINP(F),S_FLIGHT::QAB(C)+R(E)
      • B(j);SBLOCK,XP(I)::QAB(C)+R(E)
      • S(b);::QAB(C)+R(E)
      • S(f);N_PINP(F),SBLOCK::S(J)


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).