MESON Chess Problem Database

Problem Display
PID: 173124 (k1N4q/p1K1pP2/8/3R4/2p4p/nn3P1Q/8/7B w - - 0 1)

Dobrila, Arsen

Problem Observer, 2005

k1N4q/p1K1pP2/8/3R4/2p4p/nn3P1Q/8/7B

#2

7 + 8

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc8+
      • 2.Qxc8#
  • Keys
    • 1.f4!
      • threat
        • 2.Rd1#
        • 2.Rd2#
        • 2.Rd3#
        • 2.Rd4#
        • 2.Ra5#
        • 2.Rb5#
        • 2.Rc5#
        • 2.Re5#
        • 2.Rf5#
        • 2.Rg5#
        • 2.Rh5#
        • 2.Rd6#
        • 2.Rd7#
        • 2.Rd8#
      • 1...Qe5+
        • 2.Rxe5#
      • 1...Qxc8+
        • 2.Qxc8#
      • 1...Qd8+
        • 2.Rxd8#
      • 1...Sb5+
        • 2.Rxb5#
      • 1...Qa1
        • 2.Rd1#
      • 1...Qb2
        • 2.Rd2#
      • 1...Qc3
        • 2.Rd3#
      • 1...Qd4
        • 2.Rxd4#
      • 1...Qf6
        • 2.Rd6#
      • 1...Qg7
        • 2.Rg5#
      • 1...Qh5
        • 2.Rxh5#
      • 1...Qh6
        • 2.Rd6#
      • 1...Qh7
        • 2.Rf5#
      • 1...Qe8
        • 2.Rd7#
      • 1...Qg8
        • 2.Rg5#
      • 1...Sd2
        • 2.Rxd2#
      • 1...Sd4
        • 2.Rxd4#
      • 1...Sa5
        • 2.Rxa5#
      • 1...Sc5
        • 2.Rxc5#
      • 1...a5
        • 2.Rd1#
        • 2.Rd2#
        • 2.Rd3#
        • 2.Rd4#
        • 2.Rxa5#
        • 2.Rb5#
        • 2.Rc5#
        • 2.Re5#
        • 2.Rf5#
        • 2.Rg5#
        • 2.Rh5#
        • 2.Rd6#
        • 2.Rd7#
        • 2.Rd8#
      • 1...e5
        • 2.Rxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 19
    • REMOVED MATES = 0
  • Sets
    • Q(h);CHECK,OGATE,XS(G)::QAR2(C),XQ(h)
  • Actual
    • P(B);
    • Threat
      • DUALS(14)
    • Vars
      • Q(h);CHECK::B(A)+R(D),XQ(h)
      • Q(h);CHECK,OGATE,XS(G)::QAR2(C),XQ(h)
      • S(a);CHECK::B(A)+R(D),XS(a)
      • Q(h);::B(A)+R(D)
      • Q(h);::B(A)+R(D),XQ(h)
      • Q(h);SBLOCK::B(A)+R(D)
      • S(b);::B(A)+R(D),XS(b)
      • P(f);::B(A)+R(D),XP(f)
HTML5 logo

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).