MESON Chess Problem Database

Problem Display
PID: 225906 (8/8/4Kp2/2pN4/3kB1pr/nQr2p2/2P1R2B/1n2N3 w - - 0 1)

Seckar, Milos

Praca, 1948

8/8/4Kp2/2pN4/3kB1pr/nQr2p2/2P1R2B/1n2N3

#2

8 + 9

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc2
      • 2.Qd3#
    • 1...Rd3
      • 2.Qxd3#
    • 1...Rc4
      • 2.Qd3#
      • 2.Qe3#
    • 1...Sd2
      • 2.Qxc3#
    • 1...c4
      • 2.Qb6#
    • 1...f5
      • 2.Be5#
  • Tries
    • 1.Bg1+?
      • 1...Re3
        • 2.Qd3#
      • 1...f2!
  • Keys
    • 1.Bd3!
      • threat
        • 2.Re4#
      • 1...Rxd3
        • 2.Qxd3#
      • 1...fxe2
        • 2.Bg1#
      • 1...c4
        • 2.Qb6#
      • 1...Sd2
        • 2.Qxc3#
      • 1...g3
        • 2.Sxf3#
      • 1...f5
        • 2.Be5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(c);OGATE,XP(B)::QAR1(E)
    • R(c);OGATE::QAR1(E),XR(c)
    • S(a);N_GUARD::QAB1(E),XR(c)
    • P(h);OGATEB,SBLOCK::QAB(E)
    • P(i);N_GUARD::B(D)
  • Tries
    • Try
      • B(D);CHECK
      • Vars
        • R(c);OGATE,P_PINB(F),P_SPINR(c)::QAR1(E)
      • Refutation
        • P(d);P_SPINP(d)
  • Actual
    • B(F);
    • Threat
      • R1(C)
    • Vars
      • R(c);OGATE,XB(F)::QAR1(E),XR(c)
      • P(d);N_GUARD,XR(C)::B(D)
      • P(h);OGATEB::QAB(E)
      • S(a);N_GUARD::QAB1(E),XR(c)
      • P(f);N_GUARD::S(A),XP(d)
      • P(i);N_GUARD::B(D)
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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).