Problem Display
PID: 244316 (5Q2/5b2/3pk3/3Rp3/4p3/2N4K/8/1BR5 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

The Problemist, 1989

5Q2/5b2/3pk3/3Rp3/4p3/2N4K/8/1BR5

#2

6 + 5


SOLUTION


  • SOUND
  • Sets
    • 1...Bh5
      • 2.Rxd6#
    • 1...Bg6
      • 2.Rxd6#
    • 1...Be8
      • 2.Rxd6#
    • 1...Bg8
      • 2.Rxd6#
    • 1...e3
      • 2.Rxd6#
      • 2.Qxd6#
  • Tries
    • 1.Rf1?
      • threat
        • 2.Rxd6#
        • 2.Qxd6#
        • 2.Qxf7#
      • 1...Bh5
        • 2.Rxd6#
        • 2.Qxd6#
      • 1...Bg6
        • 2.Rxd6#
        • 2.Qxd6#
      • 1...Be8
        • 2.Rxd6#
        • 2.Qxd6#
        • 2.Qxe8#
      • 1...Bg8
        • 2.Rxd6#
        • 2.Qxd6#
        • 2.Qe8#
      • 1...Kd7!
  • Keys
    • 1.Sxe4!
      • 1...Kxd5
        • 2.Qxd6#
      • 1...Kf5
        • 2.Qxf7#
      • 1...Kd7
        • 2.Rxd6#
      • 1...Bh5
        • 2.Rxd6#
      • 1...Bg6
        • 2.Rxd6#
      • 1...Be8
        • 2.Rxd6#
      • 1...Bg8
        • 2.Rxd6#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(e);::R1(E),XP(c)
  • Tries
    • Try
      • R(B);
      • Threat
        • DUALS(3)
      • Refutation
        • K(d);P_SPINP(c),S_FLIGHT
  • Actual
    • S(C);XP(a)
    • Vars
      • K(d);S_FLIGHT,XR(E)::QAR1(F),XP(c)
      • K(d);P_SPINB(e),P_SPINP(b),S_FLIGHT::QAR2(F),XB(e)
      • K(d);P_SPINP(c),S_FLIGHT::R1(E),XP(c)
      • B(e);::R1(E),XP(c)


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).