MESON Chess Problem Database

Problem Display
PID: 182226 (8/6p1/1K1Rp1P1/1N2k3/8/6Pn/3Q4/8 w - - 0 1)

Drnek, Josef

Nove parizske mody, 1906

8/6p1/1K1Rp1P1/1N2k3/8/6Pn/3Q4/8

#2

6 + 4

5454 Near Snap 2018
6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sg1
      • 2.Qf4#
    • 1...Sf2
      • 2.Qf4#
    • 1...Sf4
      • 2.Qxf4#
    • 1...Sg5
      • 2.Qf4#
  • Tries
    • 1.Qd5+?
      • 1...Kf6
        • 2.Rxe6#
      • 1...exd5!
  • Keys
    • 1.Sd4!
      • 1...Ke4
        • 2.Qe2#
      • 1...Kxd6
        • 2.Sc6#
      • 1...Kf6
        • 2.Rxe6#
      • 1...Sg1
        • 2.Qf4#
      • 1...Sf2
        • 2.Qf4#
      • 1...Sf4
        • 2.Qxf4#
      • 1...Sg5
        • 2.Qf4#

Anticipated by 120723(1895)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::QAB1(A)
    • S(a);N_GUARD::QAB1(A),XS(a)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P_SPINP(c),S_FLIGHT::R1(E),XP(c)
      • Refutation
        • P(c);XQ(A)
  • Actual
    • S(C);
    • Vars
      • K(b);P-FLIGHT::QAR2(A)
      • K(b);S_FLIGHT,XR(E)::QAR(A)+S(C)
      • K(b);P_SPINP(c),S_FLIGHT::R1(E),XP(c)
      • S(a);N_GUARD::QAB1(A)
      • S(a);N_GUARD::QAB1(A),XS(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).