Problem Display
PID: 65411 (7B/1N1Q4/3p2pN/3r2P1/3pkn2/3p1p2/3K1P2/1B6 w - - 0 1)

Onkoud, Abdelaziz

Problemesis, 2000

7B/1N1Q4/3p2pN/3r2P1/3pkn2/3p1p2/3K1P2/1B6

#2

8 + 8


SOLUTION


  • SOUND
  • Tries
    • 1.Qe6+?
      • 1...Re5
        • 2.Sxd6#
      • 1...Sxe6!
    • 1.Qxd6?
      • 1...Rxg5
        • 2.Qxd4#
      • 1...Ra5
        • 2.Qxd4#
      • 1...Rb5
        • 2.Qxd4#
      • 1...Rc5
        • 2.Sxc5#
        • 2.Qxd4#
      • 1...Re5
        • 2.Qxe5#
      • 1...Rf5
        • 2.Qxd4#
      • 1...Se2
        • 2.Bxd3#
      • 1...Sg2
        • 2.Bxd3#
      • 1...Sh3
        • 2.Bxd3#
      • 1...Sh5
        • 2.Bxd3#
      • 1...Se6
        • 2.Bxd3#
      • 1...Rxd6!
  • Keys
    • 1.Qf7!
      • 1...Rxg5
        • 2.Sxd6#
      • 1...Re5
        • 2.Sxd6#
      • 1...Ra5
        • 2.Sxd6#
      • 1...Rb5
        • 2.Sxd6#
      • 1...Rc5
        • 2.Sxd6#
      • 1...Rf5
        • 2.Sxd6#
      • 1...Se2
        • 2.Bxd3#
      • 1...Sg2
        • 2.Bxd3#
      • 1...Sh3
        • 2.Bxd3#
      • 1...Sh5
        • 2.Bxd3#
      • 1...Se6
        • 2.Bxd3#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(G);CHECK
      • Vars
        • R(f);P_SPINR(f)::S(F),XP(g)
      • Refutation
        • S(e);XQ(G)
    • Try
      • Q(G);XP(g)
      • Vars
        • R(f);OGATE,XP(D)::QAR1(G),XP(c)
        • R(f);OGATE::QAR1(G),XP(c)
        • R(f);N_GUARD::QAR1(G),XR(f)
        • S(e);N_GUARD::B(A),XP(a)
      • Refutation
        • R(f);XQ(G)
  • Actual
    • Q(G);
    • Vars
      • R(f);N_GUARD,XP(D)::S(F),XP(g)
      • R(f);N_GUARD::S(F),XP(g)
      • S(e);N_GUARD::B(A),XP(a)


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).