MESON Chess Problem Database

Problem Display
PID: 265920 (1b6/5R1K/8/2N3kp/2n3nr/5B1q/b1p1r3/6Q1 w - - 0 1)

Castellari, Umberto

Il Due Mosse, 1956

1b6/5R1K/8/2N3kp/2n3nr/5B1q/b1p1r3/6Q1

#2

5 + 10

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rd2
      • 2.Se4#
      • 2.Se6#
    • 1...Rf2
      • 2.Se4#
      • 2.Se6#
    • 1...Rg2
      • 2.Se4#
      • 2.Se6#
    • 1...Rh2
      • 2.Se4#
      • 2.Se6#
    • 1...Re4
      • 2.Sxe4#
    • 1...Re6
      • 2.Sxe6#
    • 1...Be5
      • 2.Se6#
    • 1...Se3
      • 2.Se4#
  • Keys
    • 1.Qd4!
      • threat
        • 2.Qg7#
      • 1...Sf6+
        • 2.Qxf6#
      • 1...Re5
        • 2.Qf4#
      • 1...Re6
        • 2.Sxe6#
      • 1...Be5
        • 2.Se6#
      • 1...Sce5
        • 2.Qf4#
      • 1...Sge5
        • 2.Qd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • R(c);N_GUARD::S(C),XR(c)
    • B(j);S_CUTR(c)::S(C)
    • S(e);S_CUTR(c)::S(C)
  • Actual
    • Q(A);N_PINS(f)
    • Threat
      • QAR2(A)
    • Vars
      • S(f);CHECK,N_GUARD::QAB1(A),XS(f)
      • R(c);S_CUTB(j)::QAB1(A)
      • R(c);N_GUARD::S(C),XR(c)
      • B(j);S_CUTR(c)::S(C)
      • S(e);S_CUTB(j)::QAB1(A)
      • S(f);N_GUARD,S_CUTR(c)::QAB(A)
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).