MESON Chess Problem Database

Problem Display
PID: 86962 (6B1/2N1p3/2p3Kp/2p1k1p1/1p2p3/p7/3Q2N1/8 w - - 0 1)

Benko, Pal Charles

Magyar Sakkelet, 1984

6B1/2N1p3/2p3Kp/2p1k1p1/1p2p3/p7/3Q2N1/8

#2

5 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Se3?
      • threat
        • 2.Sc4#
        • 2.Sg4#
      • 1...c4
        • 2.Sxc4#
        • 2.Sg4#
      • 1...g4
        • 2.Sc4#
        • 2.Sxg4#
      • 1...h5
        • 2.Sc4#
      • 1...Kf4!
    • 1.Qe3?
      • threat
        • 2.Qxc5#
      • 1...c4
        • 2.Qc5#
      • 1...Kd6!
  • Keys
    • 1.Sb5!
      • 1...cxb5
        • 2.Qd5#
      • 1...e3
        • 2.Qxe3#
      • 1...a2
        • 2.Qb2#
      • 1...b3
        • 2.Qc3#
      • 1...c4
        • 2.Qd4#
      • 1...g4
        • 2.Qf4#
      • 1...h5
        • 2.Qxg5#
      • 1...e6
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Threat
        • DUALS(2)
      • Vars
        • P(h);::S(B)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(A);P_PINP(c)
      • Threat
        • QAR2(A),XP(d)
      • Vars
        • P(d);::QAR2(A)
      • Refutation
        • K(e);N_SPINP(c),S_FLIGHT
  • Actual
    • S(D);
    • Vars
      • P(g);N_GUARD,XS(D)::QAR1(A)
      • P(c);OGATEB::QAR2(A),XP(c)
      • P(a);N_GUARD::QAB(A)
      • P(b);N_GUARD::QAB(A)
      • P(d);N_GUARD::QAB1(A)
      • P(f);N_GUARD::QAB1(A)
      • P(h);N_GUARD::QAR2(A),XP(f)
      • P(i);N_GUARD::QAB1(A)
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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).