MESON Chess Problem Database

Problem Display
PID: 189835 (B7/4Qp1q/8/2BRp3/4kPP1/1p5r/4p3/1K3n2 w - - 0 1)

Gross, Izidor

Magyar Sakkvilag, 1912

B7/4Qp1q/8/2BRp3/4kPP1/1p5r/4p3/1K3n2

#2

7 + 8

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Re3
      • 2.Rd4#
    • 1...Rf3
      • 2.Qxe5#
    • 1...Se3
      • 2.Rd4#
  • Keys
    • 1.Qg5!
      • threat
        • 2.Rd1#
        • 2.Rd2#
        • 2.Rd6#
        • 2.Rd7#
        • 2.Rd8#
      • 1...Kf3+
        • 2.Rd3#
      • 1...Sd2+
        • 2.Rxd2#
      • 1...e1Q+
        • 2.Rd1#
      • 1...e1R+
        • 2.Rd1#
      • 1...Qg6
        • 2.Rd6#
      • 1...Qg8
        • 2.Rd8#
      • 1...Qh6
        • 2.Rd6#
      • 1...Qh8
        • 2.Rd8#
      • 1...Rd3
        • 2.Rxe5#
      • 1...Rh6
        • 2.Rd6#
      • 1...Se3
        • 2.Rd4#
      • 1...f5
        • 2.Rd7#
      • 1...f6
        • 2.Rd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 2
  • Sets
    • R(d);SBLOCK::B(G)+R(E),DCHECK
    • R(d);SBLOCK::QAR1(F),XP(f)
    • S(a);SBLOCK::B(G)+R(E),DCHECK
  • Actual
    • Q(F);N_PINP(f)
    • Threat
      • DUALS(5)
    • Vars
      • K(e);CHECK,S_FLIGHT::B(G)+R(E),DCHECK
      • S(a);CHECK::B(G)+R(E),XS(a)
      • P(b);CHECK::B(G)+R(E)
      • Q(h);::B(G)+R(E)
      • R(d);SBLOCK::B(G)+R(E),DCHECK,XP(f)
      • R(d);::B(G)+R(E)
      • S(a);SBLOCK::B(G)+R(E),DCHECK
      • P(g);::B(G)+R(E)
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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).