MESON Chess Problem Database

Problem Display
PID: 206526 (8/8/2Rpn3/Bp2bpQ1/b2kBp1K/1PNNpP1p/3r4/1n6 w - - 0 1)

Keirans, Peteris

Brisbane Courier, 1925

8/8/2Rpn3/Bp2bpQ1/b2kBp1K/1PNNpP1p/3r4/1n6

#2

9 + 12

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Se2#
    • 1...Re2
      • 2.Sxe2#
    • 1...Rxd3
      • 2.Se2#
    • 1...Bxb3
      • 2.Sxb5#
    • 1...Bf6
      • 2.Rxd6#
      • 2.Qxf6#
    • 1...Bg7
      • 2.Rxd6#
    • 1...Bh8
      • 2.Rxd6#
    • 1...Sxc3
      • 2.Bxc3#
    • 1...Sxg5
      • 2.Bb6#
    • 1...Sc7
      • 2.Bb6#
    • 1...Sg7
      • 2.Bb6#
    • 1...Sd8
      • 2.Bb6#
    • 1...Sf8
      • 2.Bb6#
    • 1...e2
      • 2.Qg1#
    • 1...b4
      • 2.Rc4#
  • Keys
    • 1.Qg7!
      • threat
        • 2.Rxd6#
      • 1...Bf6+
        • 2.Qxf6#
      • 1...Rxd3
        • 2.Se2#
      • 1...Bxb3
        • 2.Sxb5#
      • 1...Sxc3
        • 2.Bxc3#
      • 1...Sxg7
        • 2.Bb6#
      • 1...e2
        • 2.Qg1#
      • 1...Sc7
        • 2.Bb6#
      • 1...b4
        • 2.Rc4#
      • 1...d5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • R(b);N_GUARD::S(B)
    • R(b);N_GUARD::S(B),XR(b)
    • R(b);N_GUARD,XS(C)::S(B)
    • B(e);N_GUARD,XP(A)::S(B),XP(h)
    • B(i);N_GUARD::R(I),XP(k)
    • S(a);OGATE,XS(B)::B(G),XS(a)
    • S(l);N_GUARD,XQ(H)::B(G)
    • S(l);N_GUARD::B(G)
    • P(c);OGATEB::QAB(H)
    • P(h);N_GUARD::R1(I)
  • Actual
    • Q(H);P_PINB(i)
    • Threat
      • R(I),XP(k)
    • Vars
      • B(i);CHECK,OGATEB::QAB(H),XB(i)
      • R(b);N_GUARD,XS(C)::S(B)
      • B(e);N_GUARD,XP(A)::S(B),XP(h)
      • S(a);OGATE,XS(B)::B(G),XS(a)
      • S(l);N_GUARD,N_SPINB(i),XQ(H)::B(G)
      • P(c);OGATEB::QAB(H)
      • S(l);N_GUARD::B(G)
      • P(h);N_GUARD::R1(I)
      • P(k);N_GUARD::QAB1(H),XB(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).