Problem Display
PID: 189935 (n7/8/1p1K4/1B2Pp2/1k1N3Q/1N1b4/1PP5/4bq2 w - - 0 1)

Brody, Miklos

Magyar Sakkvilag, 1912

n7/8/1p1K4/1B2Pp2/1k1N3Q/1N1b4/1PP5/4bq2

#2

8 + 7


6490 yacpdb 2019

SOLUTION


  • SOUND
  • Sets
    • 1...Qh3
      • 2.Qxe1#
    • 1...Qf3
      • 2.Qxe1#
    • 1...Bf2
      • 2.c3#
    • 1...Bg3
      • 2.c3#
    • 1...Bxh4
      • 2.c3#
    • 1...Bxb5
      • 2.Sc6#
  • Tries
    • 1.Qe7?
      • threat
        • 2.Kd5#
        • 2.Kc6#
        • 2.Ke6#
        • 2.Kd7#
      • 1...Qg2
        • 2.Ke6#
        • 2.Kd7#
      • 1...Qh1
        • 2.Ke6#
        • 2.Kd7#
      • 1...Qf3
        • 2.Ke6#
        • 2.Kd7#
      • 1...Bh4
        • 2.c3#
      • 1...Bc4
        • 2.Kc6#
        • 2.Kd7#
      • 1...Be4
        • 2.Ke6#
        • 2.Kd7#
      • 1...Sc7
        • 2.Kc6#
        • 2.Kxc7#
        • 2.Kd7#
      • 1...Bxb5!
  • Keys
    • 1.Kd7!
      • threat
        • 2.Qe7#
      • 1...Bxb5+
        • 2.Sc6#
      • 1...Bxh4
        • 2.c3#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 4
  • Sets
    • Q(b);N_GUARD::QAB(E),XB(a)
    • B(a);N_GUARD::P(B)
    • B(a);N_GUARD,P_PINP(G)::P(B)
    • B(a);N_GUARD,XQ(E)::P(B)
    • B(c);SBLOCK,XB(F)::QAR(E)+S(D),DCHECK
  • Tries
    • Try
      • Q(E);
      • Threat
        • DUALS(4)
      • Vars
        • B(a);N_GUARD::P(B)
      • Refutation
        • B(c);XB(F)
  • Actual
    • K(H);P-FLIGHT
    • Threat
      • QAB(E)
    • Vars
      • B(c);CHECK,SBLOCK,XB(F)::QAR(E)+S(D),DCHECK
      • B(a);N_GUARD,XQ(E)::P(B)


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).