MESON Chess Problem Database

Problem Display
PID: 225629 (nN5B/2R3qr/2bp2nb/Qpk3pK/1p3p2/1B6/8/8 w - - 0 1)

Moravec, Antonin

Praca, 1947

nN5B/2R3qr/2bp2nb/Qpk3pK/1p3p2/1B6/8/8

#2

6 + 12

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qa1
      • 2.Sa6#
      • 2.Rxc6#
    • 1...Qb2
      • 2.Sa6#
      • 2.Rxc6#
    • 1...Qc3
      • 2.Sa6#
      • 2.Rxc6#
    • 1...Qd4
      • 2.Sa6#
      • 2.Rxc6#
    • 1...Qf8
      • 2.Sa6#
      • 2.Rxc6#
    • 1...Qxc7
      • 2.Sa6#
    • 1...Qd7
      • 2.Sa6#
    • 1...Qe7
      • 2.Sa6#
      • 2.Rxc6#
    • 1...Qf7
      • 2.Sa6#
      • 2.Rxc6#
    • 1...Qg8
      • 2.Sa6#
      • 2.Rxc6#
    • 1...Sxc7
      • 2.Qa7#
  • Keys
    • 1.Qa1!
      • threat
        • 2.Rxc6#
      • 1...Kb6
        • 2.Qa7#
      • 1...Qxc7
        • 2.Bd4#
        • 2.Qd4#
        • 2.Qg1#
      • 1...Sxc7
        • 2.Qa7#
      • 1...Qd7
        • 2.Bd4#
        • 2.Qd4#
        • 2.Qg1#
      • 1...Se5
        • 2.Qg1#
      • 1...Se7
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • Q(j);N_SPINB(f),XR(D)::S(E)
    • Q(j);::S(E)
    • S(l);N_GUARD,N_SPINB(f),XR(D)::QAB(B)
  • Actual
    • Q(B);N_PINP(c)
    • Threat
      • R1(D),XB(f)
    • Vars
      • K(d);N_SPINB(f),S_FLIGHT::QAB1(B)
      • S(l);N_GUARD,N_SPINB(f),XR(D)::QAB(B)
      • S(h);S_CUTQ(j)::QAB(B)
      • S(h);S_CUTQ(j)::S(E)
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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).