MESON Chess Problem Database

Problem Display
PID: 208192 (3r4/8/8/1b5B/4N3/1QP5/R3p3/4k2K w - - 0 1)

Munoz, JB

Dubuque Chess Journal, 1875

3r4/8/8/1b5B/4N3/1QP5/R3p3/4k2K

#2

6 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ra8
      • 2.Qb1#
    • 1...Rb8
      • 2.Ra1#
      • 2.Qb1#
    • 1...Rc8
      • 2.Ra1#
      • 2.Qb1#
    • 1...Re8
      • 2.Ra1#
      • 2.Qb1#
    • 1...Rf8
      • 2.Ra1#
      • 2.Qb1#
    • 1...Rg8
      • 2.Ra1#
      • 2.Qb1#
    • 1...Rh8
      • 2.Ra1#
      • 2.Qb1#
    • 1...Bd7
      • 2.Ra1#
      • 2.Qb1#
  • Tries
    • 1.Rxe2+?
      • 1...Kf1
        • 2.Sg3#
        • 2.Qf7#
      • 1...Bxe2!
  • Keys
    • 1.Qg8!
      • threat
        • 2.Qg1#
      • 1...Kd1
        • 2.Qg1#
      • 1...Kf1
        • 2.Qg1#
      • 1...Rxg8
        • 2.Ra1#
      • 1...Rf8
        • 2.Ra1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • R(d);N_GUARD::QAR(C)
  • Tries
    • Try
      • R(B);CHECK,XP(b)
      • Refutation
        • B(c);XR(B)
  • Actual
    • Q(C);
    • Threat
      • QAR2(C)
    • Vars
      • K(a);P-FLIGHT,P_SPINP(b)::QAR(C)
      • K(a);P-FLIGHT::QAR1(C)
      • R(d);N_GUARD,XQ(C)::R(B)
      • R(d);N_GUARD::R(B)
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).