MESON Chess Problem Database

Problem Display
PID: 204522 (K4R2/1p5p/4pNpr/1R4pP/4PkpB/p2b2N1/1b1P2P1/q7 w - - 0 1)

Tolchinsky, A

64 Shakhmatnoe obozrenie, 1925

K4R2/1p5p/4pNpr/1R4pP/4PkpB/p2b2N1/1b1P2P1/q7

#2

10 + 12

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rxh5
      • 2.Sfxh5#
    • 1...Be5
      • 2.Sd5#
    • 1...Bb1
      • 2.Se2#
    • 1...Bc2
      • 2.Se2#
    • 1...Be2
      • 2.Sxe2#
    • 1...Bxe4
      • 2.Se2#
    • 1...e5
      • 2.Sd5#
      • 2.Sd7#
      • 2.Sxh7#
      • 2.Se8#
      • 2.Sg8#
    • 1...gxh5
      • 2.Sfxh5#
  • Keys
    • 1.e5!
      • threat
        • 2.Sfe4#
      • 1...Bxe5
        • 2.Sd5#
      • 1...Bxb5
        • 2.Sd7#
      • 1...gxh5
        • 2.Sfxh5#
      • 1...Be4
        • 2.Sfxe4#
      • 1...Bf5
        • 2.Se2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(j);XP(G)::R(J)+S(H),DCHECK,XR(j)
    • B(b);SBLOCK::R(J)+S(H),DCHECK
    • B(d);N_GUARD::S(C)
    • B(d);N_GUARD::S(C),XB(d)
    • B(d);N_GUARD,XP(D)::S(C)
    • P(i);XP(G)::R(J)+S(H),DCHECK,XP(i)
  • Actual
    • P(D);
    • Threat
      • R(J)+S(H)
    • Vars
      • B(b);SBLOCK,XP(D)::R(J)+S(H),DCHECK
      • B(d);N_GUARD,XR(F)::R(J)+S(H)
      • P(i);XP(G)::R(J)+S(H),DCHECK,XP(i)
      • B(d);::R(J)+S(H),XB(d)
      • B(d);N_GUARD,SBLOCK::S(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).