MESON Chess Problem Database

Problem Display
PID: 223592 (8/8/6b1/3Bq3/2Np1R2/1PPk3N/4pB1K/2R5 w - - 0 1)

Colaneri, Bruno

Best Problems, 2020

8/8/6b1/3Bq3/2Np1R2/1PPk3N/4pB1K/2R5

#2

9 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf4+
      • 2.Sxf4#
    • 1...Qg7
      • 2.Rf3#
    • 1...Qh8
      • 2.Rf3#
    • 1...Qf5
      • 2.Rxd4#
    • 1...Qg5
      • 2.Rxd4#
    • 1...Qh5
      • 2.Rxd4#
    • 1...Qe6
      • 2.Rxd4#
    • 1...Qe7
      • 2.Rxd4#
    • 1...Qe8
      • 2.Rxd4#
  • Keys
    • 1.Be1!
      • threat
        • 2.Sf2#
      • 1...Qxf4+
        • 2.Sxf4#
      • 1...Qh8
        • 2.Rf3#
      • 1...Qe3
        • 2.Sb2#
      • 1...Qh5
        • 2.Rxd4#

There are these afters: 230652

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • Q(d);CHECK,XR(H)::S(F),XQ(d)
    • Q(d);N_PINR(H)::R(H)
    • Q(d);N_PINR(H),P_PINS(F)::R(H)
    • Q(d);N_PINR(H)::R1(H),XP(c)
    • Q(d);N_PINR(H),P_PINS(F)::R1(H),XP(c)
  • Actual
    • B(B);
    • Threat
      • S(F)
    • Vars
      • Q(d);CHECK,XR(H)::S(F),XQ(d)
      • Q(d);N_PINR(H),P_PINS(F)::R(H)
      • Q(d);N_PINR(H),SBLOCK::S(G)
      • Q(d);N_PINR(H),P_PINS(F)::R1(H),XP(c)
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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).