MESON Chess Problem Database

Problem Display
PID: 225851 (8/1rP5/p1P3R1/Bbk1P1N1/p6R/2NpP2K/1p6/1qb5 w - - 0 1)

Chobanyan, Shamil

Praca, 1992

8/1rP5/p1P3R1/Bbk1P1N1/p6R/2NpP2K/1p6/1qb5

#2

10 + 9

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rb6
      • 2.Bb4#
    • 1...Bc4
      • 2.Sge4#
    • 1...Bxc6
      • 2.Se6#
  • Tries
    • 1.Rb4?
      • threat
        • 2.Sge4#
      • 1...Bxc6
        • 2.Se6#
      • 1...d2!
    • 1.Rc4+?
      • 1...Bxc4
        • 2.Sge4#
      • 1...Kxc4!
    • 1.Rd6?
      • threat
        • 2.Se6#
      • 1...Bc4
        • 2.Sge4#
      • 1...Qa2!
    • 1.cxb7?
      • threat
        • 2.Bb4#
        • 2.Bb6#
      • 1...Bc4
        • 2.Sge4#
        • 2.c8Q#
        • 2.c8R#
      • 1...Bc6
        • 2.Se6#
      • 1...Bd7+!
  • Keys
    • 1.c8S!
      • threat
        • 2.Bb4#
      • 1...Bxc6
        • 2.Se6#
      • 1...Bc4
        • 2.Sge4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • R(i);SBLOCK::B(E)
    • B(f);SBLOCK::S(G)
    • B(f);SBLOCK,XP(H)::S(G)
  • Tries
    • Try
      • R(D);
      • Threat
        • S(G)
      • Vars
        • B(f);SBLOCK,XP(H)::S(G)
      • Refutation
        • P(d);
    • Try
      • R(D);CHECK
      • Vars
        • B(f);SBLOCK,XR(D)::S(G)
      • Refutation
        • K(g);P-FLIGHT,XR(D)
    • Try
      • R(I);
      • Threat
        • S(G)
      • Vars
        • B(f);SBLOCK::S(G)
      • Refutation
        • Q(a);
    • Try
      • P(H);XR(i)
      • Threat
        • DUALS(2)
      • Vars
        • B(f);SBLOCK::S(G)
      • Refutation
        • B(f);CHECK
  • Actual
    • P(J);
    • Threat
      • B(E)
    • Vars
      • B(f);SBLOCK,XP(H)::S(G)
      • B(f);SBLOCK::S(G)
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).