Problem Display
PID: 276073 (b1N5/K2n1B1R/2p2k2/p3r1N1/Q2p2PP/3n2p1/5b2/B4R2 w - - 0 1)

Makaronets, Leonid

Mat, 1981

b1N5/K2n1B1R/2p2k2/p3r1N1/Q2p2PP/3n2p1/5b2/B4R2

#2

10 + 10


SOLUTION


  • SOUND
  • Tries
    • 1.Qxc6+?
      • 1...Re6
        • 2.Qxe6#
      • 1...Bxc6!
  • Keys
    • 1.Qxd4!
      • threat
        • 2.Se4#
      • 1...S3c5
        • 2.Qf4#
      • 1...S7c5
        • 2.Qd8#
      • 1...c5
        • 2.Qd6#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);CHECK,XP(g)
      • Vars
        • R(f);N_GUARD,P_SPINP(d),P_SPINR(f)::QAR1(C),XR(f)
      • Refutation
        • B(j);XQ(C)
  • Actual
    • Q(C);P_PINR(f),P_SPINQ(C),XP(d)
    • Threat
      • S(F)
    • Vars
      • S(b);N_PINQ(C)::QAR2(C)
      • S(i);N_PINQ(C)::QAB(C)
      • P(g);N_PINQ(C)::QAR2(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).