Problem Display
PID: 177844 (b2n1r2/4prp1/B6Q/3PR1pp/3PpP2/4k3/p3N1P1/B3K3 w - - 0 1)

Mironov, Aleksey Fedorovich

Sahs (Latvia), 1983

b2n1r2/4prp1/B6Q/3PR1pp/3PpP2/4k3/p3N1P1/B3K3

#2

10 + 11


6490 yacpdb 2018

SOLUTION


  • SOUND
  • Tries
    • 1.Qxg5?
      • threat
        • 2.Qg3#
        • 2.f5#
      • 1...Rf5
        • 2.Qg3#
      • 1...Se6
        • 2.Qg3#
      • 1...h4
        • 2.f5#
      • 1...Rxf4!
  • Keys
    • 1.Sc3!
      • threat
        • 2.Rxe4#
      • 1...Kxd4
        • 2.Qb6#
      • 1...Kxf4
        • 2.Qxg5#
      • 1...Rxf4
        • 2.Sd1#
      • 1...Bxd5
        • 2.Sxd5#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(J);XP(d)
      • Threat
        • DUALS(2)
      • Vars
        • R(g);::QAR2(J)
        • S(j);::QAR2(J)
        • P(e);::QAB(J)+P(F)
      • Refutation
        • R(g);P_SPINR(g),XP(F)
  • Actual
    • S(C);
    • Threat
      • R1(H),XP(c)
    • Vars
      • K(b);N_SPINP(c),OGATEB,S_FLIGHT,XP(E)::QAB(J)
      • K(b);N_SPINP(c),OGATEB,P_SPINP(d),S_FLIGHT,XP(F)::QAB1(J),XP(d)
      • R(g);SBLOCK,XP(F)::S(C)
      • B(i);XP(G)::S(C),XB(i)


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).