MESON Chess Problem Database

Problem Display
PID: 201515 (n5r1/2RN2P1/2rp3b/R6B/K1k1b3/1pP5/1P3p2/5N1q w - - 0 1)

Santillan, S

L'Alfiere di Re, 1922

n5r1/2RN2P1/2rp3b/R6B/K1k1b3/1pP5/1P3p2/5N1q

#2

9 + 10

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bg2
      • 2.Be2#
    • 1...Bd5
      • 2.Be2#
    • 1...d5
      • 2.Se5#
  • Keys
    • 1.Rd5!
      • threat
        • 2.Rd4#
      • 1...Sb6+
        • 2.Sxb6#
      • 1...Kxd5
        • 2.Bf7#
      • 1...Bxd5
        • 2.Be2#
      • 1...Bxg7
        • 2.Se3#
      • 1...Be3
        • 2.Sxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • B(e);N_GUARD::B(F)
    • P(g);N_GUARD::S(H)
  • Actual
    • R(E);
    • Threat
      • R1(E)
    • Vars
      • S(i);CHECK,N_GUARD::S(H),XS(i)
      • K(d);N_SPINR(f),OGATEB,S_FLIGHT,XR(E)::B(F)
      • B(e);N_GUARD,SBLOCK,XR(E)::B(F)
      • B(h);N_GUARD,XP(I)::S(A)
      • B(h);N_GUARD::S(A),XB(h)
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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).