MESON Chess Problem Database

Problem Display
PID: 83852 (q3b1N1/7p/1r4p1/3pRBk1/6P1/p3P1RK/8/b6Q w - - 0 1)

Roura, Juan R

Good Companions, 1919

q3b1N1/7p/1r4p1/3pRBk1/6P1/p3P1RK/8/b6Q

#2

8 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rb2
      • 2.Bb1#
      • 2.Bc2#
      • 2.Bd3#
      • 2.Be4#
      • 2.Be6#
      • 2.Bd7#
      • 2.Bc8#
    • 1...d4
      • 2.Bb1#
      • 2.Bc2#
      • 2.Bd3#
      • 2.Be4#
      • 2.Be6#
      • 2.Bd7#
      • 2.Bc8#
  • Keys
    • 1.Kg2!
      • threat
        • 2.Qh6#
      • 1...Rb2+
        • 2.Bc2#
      • 1...d4+
        • 2.Be4#
      • 1...gxf5
        • 2.gxf5#
      • 1...h5
        • 2.gxh5#
      • 1...h6
        • 2.Qxh6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Actual
    • K(D);S_FLIGHT
    • Threat
      • QAB1(A)
    • Vars
      • R(e);CHECK,S_CUTB(a)::R(F)+B(G)
      • P(c);CHECK,S_CUTB(a)::R(F)+B(G)
      • P(f);OGATE,P_SPINP(f),XB(G)::R(C)+P(E),XP(f)
      • P(g);OGATE::R(C)+P(E),XP(g)
      • P(g);::QAB1(A),XP(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).