MESON Chess Problem Database

Problem Display
PID: 284093 (bb3R2/3N4/2R4B/N7/3k4/8/1nK5/2n4B w - - 0 1)

Cabrera, Virginio

Zaragoza-65 JT (Problemas), 2025

bb3R2/3N4/2R4B/N7/3k4/8/1nK5/2n4B

#2

7 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Sa2
      • 2.Sb3#
    • 1...Se2
      • 2.Sb3#
    • 1...Sb3
      • 2.Sxb3#
    • 1...Scd3
      • 2.Sb3#
    • 1...Sd1
      • 2.Rc4#
    • 1...Sbd3
      • 2.Rc4#
    • 1...Sa4
      • 2.Rc4#
    • 1...Sc4
      • 2.Rxc4#
  • Tries
    • 1.Rd6+?
      • 1...Bd5
        • 2.Rxd5#
      • 1...Bxd6!
  • Keys
    • 1.Kd2!
      • threat
        • 2.Be3#
      • 1...Bf4+
        • 2.Rxf4#
      • 1...Sb3+
        • 2.Sxb3#
      • 1...Sc4+
        • 2.Rxc4#
      • 1...Sd1
        • 2.Rc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • S(a);N_GUARD::S(C)
    • S(a);N_GUARD::S(C),XS(a)
    • S(b);N_GUARD::R1(D)
    • S(b);N_GUARD::R1(D),XS(b)
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • B(d);N_GUARD,P_SPINB(d)::R1(D),XB(d)
      • Refutation
        • B(e);XR(D)
  • Actual
    • K(B);P-FLIGHT
    • Threat
      • B(E)
    • Vars
      • B(e);CHECK,N_GUARD::R(G),XB(e)
      • S(a);CHECK,N_GUARD::S(C),XS(a)
      • S(b);CHECK,N_GUARD::R1(D),XS(b)
      • S(b);N_GUARD::R1(D)
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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).