MESON Chess Problem Database

Problem Display
PID: 206547 (6nB/2RK4/5pp1/1p2k1p1/1P2n1P1/2p1PQ2/2P5/8 w - - 0 1)

Millins, Edward

Brisbane Courier, 1925

6nB/2RK4/5pp1/1p2k1p1/1P2n1P1/2p1PQ2/2P5/8

#2

8 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Rc5#
    • 1...Sd2
      • 2.Rc5#
    • 1...Sf2
      • 2.Rc5#
    • 1...Sg3
      • 2.Rc5#
    • 1...Sc5+
      • 2.Rxc5#
    • 1...Sd6
      • 2.Rc5#
  • Tries
    • 1.Rc4?
      • threat
        • 2.Qxe4#
      • 1...Sc5+
        • 2.Rxc5#
      • 1...Kd5
        • 2.Rc5#
        • 2.Qxe4#
      • 1...Sd2
        • 2.Rc5#
      • 1...Sf2
        • 2.Rc5#
      • 1...Sg3
        • 2.Rc5#
      • 1...Sd6
        • 2.Rc5#
      • 1...bxc4!
  • Keys
    • 1.Kc6!
      • 1...Se7+
        • 2.Rxe7#
      • 1...Ke6
        • 2.Qxe4#
      • 1...Sd2
        • 2.Qd5#
      • 1...Sf2
        • 2.Qd5#
      • 1...Sg3
        • 2.Qd5#
      • 1...Sc5
        • 2.Qd5#
      • 1...Sd6
        • 2.Qd5#
      • 1...Sh6
        • 2.Re7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 5
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • K(d);N_SPINP(f),P-FLIGHT,P_SPINS(b)::R1(F)
    • S(b);N_GUARD::R(F)
    • S(b);CHECK,N_GUARD::R(F),XS(b)
  • Tries
    • Try
      • R(F);
      • Threat
        • QAR1(C),XS(b)
      • Vars
        • S(b);CHECK,N_GUARD::R(F),XS(b)
        • S(b);N_GUARD::R(F)
      • Refutation
        • P(c);XR(F)
  • Actual
    • K(G);S_FLIGHT
    • Vars
      • S(h);CHECK,N_GUARD::R(F),XS(h)
      • K(d);N_SPINP(f),P-FLIGHT::QAR2(C),XS(b)
      • S(b);OGATE::QAR1(C)
      • S(h);N_GUARD::R(F)
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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).