MESON Chess Problem Database

Problem Display
PID: 59695 (7n/rpQ5/8/1RN2p2/8/1R4rq/p1k2N2/K1B1n2b w - - 0 1)

Loyd, Sam

3rd Prize, Paris Ty., 1878

7n/rpQ5/8/1RN2p2/8/1R4rq/p1k2N2/K1B1n2b

#2

7 + 10

5689 The Chess Monthly (Hoffer) 1881
5206 Sam Loyd and His Chess Problems 1913

SOLUTION

  • SOUND
  • Sets
    • 1...Rg2
      • 2.Scd3#
    • 1...Rf3
      • 2.Scd3#
    • 1...Bf3
      • 2.Sce4#
    • 1...Sg2
      • 2.Scd3#
    • 1...Sf3
      • 2.Scd3#
      • 2.Sa4#
      • 2.Sce4#
      • 2.Sa6#
      • 2.Se6#
      • 2.Sxb7#
      • 2.Sd7#
  • Tries
    • 1.Rb2+?
      • 1...Kxc1
        • 2.Sb3#
        • 2.Scd3#
      • 1...Kc3!
  • Keys
    • 1.Rf3!
      • threat
        • 2.Sb3#
        • 2.Scd3#
        • 2.Sa4#
        • 2.Sce4#
        • 2.Sa6#
        • 2.Se6#
        • 2.Sxb7#
        • 2.Sd7#
      • 1...Kxc1
        • 2.Sb3#
      • 1...Rxf3
        • 2.Scd3#
      • 1...Bxf3
        • 2.Sce4#
      • 1...Sd3
        • 2.Scxd3#
      • 1...Qf1
        • 2.Scd3#
      • 1...Qg4
        • 2.Sce4#
      • 1...Qh4
        • 2.Sce4#
      • 1...Qh6
        • 2.Se6#
      • 1...Qh7
        • 2.Sd7#
      • 1...Rg4
        • 2.Sce4#
      • 1...Rg6
        • 2.Se6#
      • 1...Rg7
        • 2.Sd7#
      • 1...Ra3
        • 2.Sb3#
      • 1...Ra4
        • 2.Sxa4#
      • 1...Ra6
        • 2.Sxa6#
      • 1...b6
        • 2.Sb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 14
    • REMOVED MATES = 2
  • Sets
    • R(e);S_CUTB(b)::QAR(G)+S(F)
    • B(b);S_CUTR(e)::QAR(G)+S(F)
    • S(a);S_CUTB(b)::QAR(G)+S(F)
  • Tries
    • Try
      • R(D);CHECK
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • R(D);
    • Threat
      • DUALS(8)
    • Vars
      • K(d);P-FLIGHT,XB(B)::QAR(G)+S(F),DCHECK
      • R(e);XR(D)::QAR(G)+S(F)
      • B(b);XR(D)::QAR(G)+S(F)
      • S(a);::QAR(G)+S(F),XS(a)
      • Q(f);::QAR(G)+S(F)
      • R(e);::QAR(G)+S(F)
      • R(h);::QAR(G)+S(F)
      • R(h);::QAR(G)+S(F),XR(h)
      • P(i);::QAR(G)+S(F)
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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).