MESON Chess Problem Database

Problem Display
PID: 96920 (3R4/B1p5/b4p1b/2n1kP2/1pp1p1P1/3pP1K1/8/2RQ3B w - - 0 1)

Zabala Apraiz, Miguel

Problemas, 1974

3R4/B1p5/b4p1b/2n1kP2/1pp1p1P1/3pP1K1/8/2RQ3B

#2

9 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bf4+
      • 2.exf4#
    • 1...Sa4
      • 2.Bd4#
    • 1...Sb7
      • 2.Bd4#
    • 1...c6
      • 2.Bb8#
  • Tries
    • 1.Bxc5?
      • threat
        • 2.Bd4#
      • 1...Bf4+
        • 2.exf4#
      • 1...Bxe3!
  • Keys
    • 1.Qxd3!
      • threat
        • 2.Rd5#
        • 2.Qd4#
        • 2.Qd5#
      • 1...Bf4+
        • 2.exf4#
      • 1...Bxe3
        • 2.Rd5#
        • 2.Qd5#
      • 1...Sxd3
        • 2.Bd4#
      • 1...cxd3
        • 2.Rxc5#
      • 1...exd3
        • 2.Rd5#
      • 1...Bb7
        • 2.Qd4#
      • 1...Sb3
        • 2.Rd5#
        • 2.Re8#
        • 2.Qxe4#
        • 2.Qd5#
      • 1...Se6
        • 2.Rd5#
        • 2.Qxe4#
        • 2.Qd5#
      • 1...Sd7
        • 2.Re8#
        • 2.Qd4#
      • 1...c6
        • 2.Bb8#
        • 2.Qd4#
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • B(i);CHECK,OGATE::P(D),XB(i)
    • S(e);OGATE::B(H)
    • P(j);OGATEB::B(H)
  • Tries
    • Try
      • B(H);XS(e)
      • Threat
        • B(H)
      • Vars
        • B(i);CHECK,OGATE::P(D),XB(i)
      • Refutation
        • B(i);XP(D)
  • Actual
    • Q(B);XP(a)
    • Threat
      • DUALS(3)
    • Vars
      • B(i);CHECK,OGATE::P(D),XB(i)
      • S(e);OGATE,XQ(B)::B(H)
      • P(c);OGATE,XQ(B)::R(A),XS(e)
      • P(d);XQ(B)::R1(I)
      • B(g);::QAB1(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).