MESON Chess Problem Database

Problem Display
PID: 21946 (2Rb3k/6N1/2n5/5B2/7q/2B2n1R/Q7/3K4 w - - 0 1)

Hartong, Jan

3rd Prize, Good Companions (January Meredith Ty.), 1922

2Rb3k/6N1/2n5/5B2/7q/2B2n1R/Q7/3K4

#2

7 + 5

3132 The Good Companion Two-Mover 1922
3098 FIDE Album (1914-1944) (I) 1971
35 L'Italia Scacchistica 1985
3310 2345 Chess Problems 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Qh5
      • 2.Rxh5#
    • 1...Qh6
      • 2.Rxh6#
    • 1...Qh7
      • 2.Rxh7#
    • 1...Se1
      • 2.Rxh4#
    • 1...Sg1
      • 2.Rxh4#
    • 1...Sd2
      • 2.Rxh4#
    • 1...Sh2
      • 2.Rxh4#
    • 1...Sb4
      • 2.Rxd8#
    • 1...Sa5
      • 2.Rxd8#
    • 1...Sa7
      • 2.Rxd8#
    • 1...Sb8
      • 2.Rxd8#
  • Tries
    • 1.Qf7?
      • threat
        • 2.Qe8#
        • 2.Qf8#
      • 1...Sfd4
        • 2.Rxh4#
        • 2.Qf8#
      • 1...Sfe5
        • 2.Rxh4#
        • 2.Qf8#
      • 1...Scd4
        • 2.Rxd8#
        • 2.Qf8#
      • 1...Sce5
        • 2.Rxd8#
        • 2.Qf8#
      • 1...Se7!
  • Keys
    • 1.Bf6!
      • 1...Qxh3
        • 2.Sh5#
      • 1...Sfd4
        • 2.Rxh4#
      • 1...Qh5
        • 2.Sxh5#
        • 2.Rxh5#
      • 1...Qh6
        • 2.Rxh6#
      • 1...Qh7
        • 2.Rxh7#
      • 1...Se1
        • 2.Rxh4#
      • 1...Sg1
        • 2.Rxh4#
      • 1...Sd2
        • 2.Rxh4#
      • 1...Sh2
        • 2.Rxh4#
      • 1...Sfe5
        • 2.Rxh4#
      • 1...Sg5
        • 2.Sh5#
      • 1...Sb4
        • 2.Rxd8#
      • 1...Scd4
        • 2.Rxd8#
      • 1...Sa5
        • 2.Rxd8#
      • 1...Sce5
        • 2.Rxd8#
      • 1...Sa7
        • 2.Rxd8#
      • 1...Se7
        • 2.Se8#
      • 1...Sb8
        • 2.Rxd8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • Q(b);OGATE::R(D),XQ(b)
    • Q(b);OGATE::R1(D),XQ(b)
    • S(a);N_GUARD::R(D),XQ(b)
    • S(c);N_GUARD::R(G),XB(d)
  • Tries
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Refutation
        • S(c);
  • Actual
    • B(C);
    • Vars
      • Q(b);N_GUARD,N_SPINQ(b),XR(D)::B(C)+S(F)
      • S(a);N_GUARD::R(D),XQ(b)
      • Q(b);OGATE::R(D),XQ(b)
      • Q(b);OGATE::R1(D),XQ(b)
      • S(a);::B(C)+S(F)
      • S(c);N_GUARD::R(G),XB(d)
      • S(c);::B(C)+S(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).