MESON Chess Problem Database

Problem Display
PID: 184863 (8/8/4K2b/p3P2p/RB3k2/3ppp2/1Q5P/r2r2n1 w - - 0 1)

Jewetsky, Feodor Orestovich

125 Shakhmaty Zadachi (Eventski), 1908

8/8/4K2b/p3P2p/RB3k2/3ppp2/1Q5P/r2r2n1

#2

6 + 10

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Ba3#
    • 1...Rab1
      • 2.Be7#
    • 1...Bg5
      • 2.Ba3#
      • 2.Qd4#
    • 1...e2
      • 2.Bd2#
  • Keys
    • 1.Qf2!
      • threat
        • 2.Qh4#
      • 1...Ke4
        • 2.Ba3#
      • 1...Kg4
        • 2.Qg3#
      • 1...Kg5
        • 2.Qg3#
      • 1...exf2
        • 2.Bd2#
      • 1...Bg5
        • 2.Ba3#
      • 1...e2
        • 2.Bd2#
      • 1...h4
        • 2.Qxh4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • K(g);P-FLIGHT::R(C)+B(D)
    • R(a);N_GUARD::R(C)+B(D)
    • P(e);::R(C)+B(D),DCHECK
  • Actual
    • Q(A);P_PINP(f)
    • Threat
      • QAR2(A)
    • Vars
      • K(g);N_SPINP(f),P-FLIGHT::R(C)+B(D)
      • K(g);N_SPINP(f),P-FLIGHT::QAR1(A)
      • K(g);N_SPINP(f),S_FLIGHT::QAR2(A)
      • P(e);N_SPINP(f),XQ(A)::R(C)+B(D),DCHECK
      • B(j);SBLOCK::R(C)+B(D)
      • P(e);::R(C)+B(D),DCHECK
      • P(i);::QAR2(A),XP(i)
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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).