MESON Chess Problem Database

Problem Display
PID: 107307 (4B2K/4p3/4kp2/1N2p3/N1P3pP/3PQ1B1/5q2/4rR1n w - - 0 1)

Zilahi, Zoltan

Panorama, 1952

4B2K/4p3/4kp2/1N2p3/N1P3pP/3PQ1B1/5q2/4rR1n

#2

10 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qg1
      • 2.Sc5#
    • 1...Qxg3
      • 2.Sc5#
      • 2.Qb6#
    • 1...Qa2
      • 2.Sc5#
      • 2.Qb6#
    • 1...Qb2
      • 2.Sc5#
      • 2.Qb6#
    • 1...Qc2
      • 2.Sc5#
      • 2.Qb6#
    • 1...Qd2
      • 2.Sc5#
      • 2.Qb6#
    • 1...Qe2
      • 2.Sc5#
      • 2.Qb6#
    • 1...Qg2
      • 2.Sc5#
    • 1...Qh2
      • 2.Sc5#
      • 2.Qb6#
    • 1...Qf5
      • 2.Sc5#
      • 2.Qb6#
    • 1...e4
      • 2.Sd4#
    • 1...f5
      • 2.Qh6#
  • Tries
    • 1.Rxf2?
      • threat
        • 2.Sc5#
        • 2.Qb6#
      • 1...Rxe3
        • 2.Sc5#
      • 1...f5
        • 2.Qb6#
        • 2.Qh6#
      • 1...Sxf2!
    • 1.Qxf2?
      • threat
        • 2.Sc5#
        • 2.Qb6#
        • 2.Qf5#
      • 1...Rxf1
        • 2.Sc5#
      • 1...Sxg3
        • 2.Sc5#
        • 2.Qb6#
      • 1...f5
        • 2.Qb6#
        • 2.Qxf5#
      • 1...Re3
        • 2.Sc5#
        • 2.Qf5#
      • 1...Sxf2!
  • Keys
    • 1.Qc5!
      • threat
        • 2.Qc8#
      • 1...Kf5
        • 2.Sd4#
      • 1...Qxc5
        • 2.Sxc5#
      • 1...Qd4
        • 2.Sc7#
      • 1...f5
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • Q(c);::S(E)
    • P(e);::S(H)
    • P(g);OGATEB,SBLOCK::QAR(C)
  • Tries
    • Try
      • R(A);XQ(c)
      • Threat
        • DUALS(2)
      • Vars
        • R(a);N_SPINP(e),XQ(C)::S(E)
      • Refutation
        • S(b);XR(A)
    • Try
      • Q(C);N_PINP(e),XQ(c)
      • Threat
        • DUALS(3)
      • Vars
        • R(a);XR(A)::S(E)
      • Refutation
        • S(b);XQ(C)
  • Actual
    • Q(C);N_PINP(e)
    • Threat
      • QAB(C)
    • Vars
      • K(f);P_SPINP(e),P_SPINQ(c),S_FLIGHT::S(H)
      • Q(c);XQ(C)::S(E),XQ(c)
      • Q(c);::S(H)
      • P(g);SBLOCK::QAR2(C)
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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).