MESON Chess Problem Database

Problem Display
PID: 5032 (2R5/2p1p3/rp1R2K1/r2P2p1/N3k3/4p1P1/4Q3/Bb2n3 w - - 0 1)

Blake, Percy Francis

2nd Prize=, Leeds Mercury, 1896-1897

2R5/2p1p3/rp1R2K1/r2P2p1/N3k3/4p1P1/4Q3/Bb2n3

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Bd3
      • 2.Qg4#
    • 1...Sd3
      • 2.Qg2#
    • 1...b5
      • 2.Sc5#
  • Keys
    • 1.Qd1!
      • threat
        • 2.Re6#
      • 1...Rxd5
        • 2.Qxd5#
      • 1...cxd6
        • 2.Rc4#
      • 1...exd6
        • 2.Re8#
      • 1...e2
        • 2.Qxe2#
      • 1...Bd3
        • 2.Qg4#
      • 1...Sd3
        • 2.Qh1#
      • 1...Sf3
        • 2.Qxb1#
      • 1...b5
        • 2.Sc5#
      • 1...e5
        • 2.Sc3#
      • 1...e6
        • 2.Rxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • B(a);SBLOCK::QAR2(B)
    • S(b);N_GUARD,SBLOCK::QAB(B)
    • P(h);N_GUARD,P_PINR(F),S_CUTR(e)::S(D)
  • Actual
    • Q(B);N_PINP(c)
    • Threat
      • R(F)
    • Vars
      • R(e);OGATE,XP(E)::QAB1(B),XR(e)
      • P(i);OGATE,XR(F)::R(H)
      • P(j);OGATEB,XR(F)::R(H)
      • P(c);OGATEB::QAR2(B),XP(c)
      • B(a);SBLOCK::QAR2(B)
      • S(b);OGATE,SBLOCK::QAB(B)
      • S(b);N_GUARD,SBLOCK::QAB(B),XB(a)
      • P(h);N_GUARD,P_PINR(F),S_CUTR(e)::S(D)
      • P(j);SBLOCK::S(D)
      • P(j);::R(F),XP(j)
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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).