MESON Chess Problem Database

Problem Display
PID: 7270 (K2B2B1/1p5R/2kP4/1p6/4P3/NN1R1nb1/8/2r5 w - - 0 1)

Retter, Yosef

2nd Place, Netanya, 1999

K2B2B1/1p5R/2kP4/1p6/4P3/NN1R1nb1/8/2r5

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rc5
      • 2.Sa5#
    • 1...Bxd6
      • 2.Bd5#
    • 1...b6
      • 2.Rc7#
  • Tries
    • 1.Ba5?
      • threat
        • 2.Rc7#
      • 1...Bxd6
        • 2.Bd5#
      • 1...Sd4!
    • 1.Rc3+?
      • 1...Kxd6
        • 2.Bc7#
      • 1...Rxc3!
    • 1.Rd5?
      • threat
        • 2.Sa5#
      • 1...b6
        • 2.Rc7#
      • 1...Be1!
  • Keys
    • 1.Bc7!
      • threat
        • 2.Bd5#
      • 1...Rc5
        • 2.Sa5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • R(a);SBLOCK::S(B)
    • B(c);SBLOCK,XP(E)::B(I)
    • P(f);SBLOCK::R1(F)
  • Tries
    • Try
      • B(H);
      • Threat
        • R1(F)
      • Vars
        • B(c);SBLOCK,XP(E)::B(I)
      • Refutation
        • S(b);
    • Try
      • R(C);CHECK
      • Vars
        • K(e);P-FLIGHT,XP(E)::B(H)
      • Refutation
        • R(a);XR(C)
    • Try
      • R(C);
      • Threat
        • S(B)
      • Vars
        • P(f);SBLOCK::R1(F)
      • Refutation
        • B(c);
  • Actual
    • B(H);
    • Threat
      • B(I)
    • Vars
      • R(a);SBLOCK::S(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).