MESON Chess Problem Database

Problem Display
PID: 75601 (3r4/3r4/npN4R/1kb4b/5pq1/1P1R3p/1Q4n1/5B1K w - - 0 1)

Gamage, Frederick

5th Prize, Parallele 50, 1947

3r4/3r4/npN4R/1kb4b/5pq1/1P1R3p/1Q4n1/5B1K

#2

7 + 11

5397 Frederick Gamage (Prcic) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Rd5#
    • 1...Bf2
      • 2.Rd5#
    • 1...Ba3
      • 2.Rd5#
    • 1...Be3
      • 2.Rd5#
    • 1...Bb4
      • 2.Rd5#
    • 1...Be7
      • 2.Rd5#
    • 1...Bf8
      • 2.Rd5#
    • 1...f3
      • 2.Rd4#
  • Keys
    • 1.Qa3!
      • threat
        • 2.Qa4#
      • 1...Bxa3
        • 2.Rd5#
      • 1...Bb4
        • 2.Rd5#
      • 1...Bd6
        • 2.Sd4#
      • 1...Rd4
        • 2.Sa7#
      • 1...Bg1
        • 2.Rd5#
      • 1...Bf2
        • 2.Rd5#
      • 1...Be3
        • 2.Rd5#
      • 1...Bd4
        • 2.Rf3#
      • 1...Be7
        • 2.Rd5#
      • 1...Bf8
        • 2.Rd5#
      • 1...f3
        • 2.Rd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(f);::B(A)+R(E),DCHECK
    • P(c);S_CUTQ(d)::B(A)+R(E)
  • Actual
    • Q(C);
    • Threat
      • QAB1(C)
    • Vars
      • B(f);XQ(C)::B(A)+R(E),DCHECK
      • B(f);::B(A)+R(E),DCHECK
      • B(f);N_GUARD,S_CUTR(j)::S(F)
      • R(j);N_GUARD::S(F)
      • B(f);S_CUTR(j)::B(A)+R(E)
      • P(c);S_CUTQ(d)::B(A)+R(E)
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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).