Problem Display
PID: 243181 (1b1q4/8/2R4B/4k3/4pR1p/1b1p4/7K/5Q2 w - - 0 1)

Bartolovic, Hrvoje

Shakhmaty v SSSR, 1959

1b1q4/8/2R4B/4k3/4pR1p/1b1p4/7K/5Q2

#2

5 + 7


15148 Sadier Collection 2021

SOLUTION


  • SOUND
  • Sets
    • 1...Qd4
      • 2.Rf5#
    • 1...Qd5
      • 2.Bg7#
    • 1...Bd5
      • 2.Qa1#
  • Keys
    • 1.Qg2!
      • threat
        • 2.Qxe4#
      • 1...Kd4
        • 2.Qxe4#
      • 1...Kd5
        • 2.Qxe4#
      • 1...Qd4
        • 2.Qg5#
      • 1...Qd5
        • 2.Qg7#
      • 1...Bd5
        • 2.Qb2#
      • 1...e3
        • 2.Qe4#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • Q(g);SBLOCK::R1(C)
    • Q(g);N_GUARD,SBLOCK::B(E)
    • B(a);SBLOCK,S_CUTQ(g)::QAB(A)
  • Actual
    • Q(A);
    • Threat
      • QAR1(A),XP(c)
    • Vars
      • K(e);P_PINR(C),P_SPINP(c),S_FLIGHT::QAR1(A),XP(c)
      • K(e);P-FLIGHT,P_PINR(C),P_SPINP(c)::QAB1(A),XP(c)
      • Q(g);N_GUARD,SBLOCK::QAR2(A)
      • Q(g);N_GUARD,SBLOCK::QAB(A)
      • B(a);SBLOCK,S_CUTQ(g)::QAB(A)
      • P(c);::QAR1(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).