MESON Chess Problem Database

Problem Display
PID: 231486 (1b4K1/8/1NpP1B2/7N/3Rp3/1p2krPR/3n1p2/1nQB1b2 w - - 0 1)

Cauveren, Jonas Ephraim

Brisbane Courier, 1927

1b4K1/8/1NpP1B2/7N/3Rp3/1p2krPR/3n1p2/1nQB1b2

#2

10 + 10

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg3+
      • 2.Rxg3#
    • 1...Bg2
      • 2.Sc4#
    • 1...Bxh3
      • 2.Sc4#
    • 1...Bc4+
      • 2.Sxc4#
    • 1...Sa3
      • 2.Qxd2#
    • 1...Sc3
      • 2.Qxd2#
    • 1...c5
      • 2.Sd5#
  • Keys
    • 1.Qc5!
      • threat
        • 2.Rd5#
      • 1...Rxg3+
        • 2.Bg5#
        • 2.Qg5#
      • 1...Bxd6
        • 2.Rxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 7
  • Sets
    • R(g);CHECK,OGATE,P_SPINR(g),XP(C)::R(D),XR(g)
    • B(b);N_GUARD::S(G)
    • B(b);N_GUARD,XR(D)::S(G)
    • B(b);CHECK,N_GUARD::S(G),XB(b)
    • S(a);N_GUARD::QAB1(A),XS(c)
    • P(i);N_GUARD::S(G)
  • Actual
    • Q(A);N_PINS(c)
    • Threat
      • QAB(A)+R(E)
    • Vars
      • B(j);OGATE,XP(H)::QAB(A)+R(E),XB(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).