MESON Chess Problem Database

Problem Display
PID: 224760 (8/3p1q2/3Np1p1/2K1k1Pp/1p2p1nR/5p2/8/2Q5 w - - 0 1)

Lavater, Magdalena Elise

Wiener Hausfrauen-Zeitung, 1888

8/3p1q2/3Np1p1/2K1k1Pp/1p2p1nR/5p2/8/2Q5

#2

5 + 10

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qf4
      • 2.Qb2#
      • 2.Qa1#
    • 1...Qf5
      • 2.Sc4#
    • 1...Sf2
      • 2.Qb2#
      • 2.Qa1#
    • 1...Sh2
      • 2.Rxe4#
      • 2.Qb2#
      • 2.Qa1#
    • 1...Se3
      • 2.Rxe4#
      • 2.Qb2#
      • 2.Qa1#
    • 1...Sf6
      • 2.Qb2#
      • 2.Qf4#
      • 2.Qa1#
    • 1...Sh6
      • 2.Rxe4#
      • 2.Qb2#
      • 2.Qa1#
  • Tries
    • 1.Rxg4?
      • threat
        • 2.Rxe4#
        • 2.Qb2#
        • 2.Qa1#
      • 1...Qf4
        • 2.Qb2#
        • 2.Qxf4#
        • 2.Qa1#
      • 1...Qf5
        • 2.Sc4#
        • 2.Qb2#
        • 2.Qa1#
      • 1...b3
        • 2.Rxe4#
        • 2.Qb2#
        • 2.Qc3#
      • 1...e3
        • 2.Re4#
        • 2.Qb2#
        • 2.Qxe3#
        • 2.Qa1#
      • 1...hxg4!
  • Keys
    • 1.Qe3!
      • threat
        • 2.Qxe4#
      • 1...Sxe3
        • 2.Rxe4#
      • 1...Qf4
        • 2.Qd4#
      • 1...Qf5
        • 2.Sc4#
      • 1...Sf2
        • 2.Qd4#
      • 1...Sf6
        • 2.Qd4#
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • Q(j);SBLOCK::S(E)
  • Tries
    • Try
      • R(B);XS(d)
      • Threat
        • DUALS(3)
      • Refutation
        • P(f);XR(B)
  • Actual
    • Q(A);P_PINP(c)
    • Threat
      • QAR1(A),XP(c)
    • Vars
      • S(d);N_SPINP(c),OGATE,XQ(A)::R1(B),XP(c)
      • Q(j);SBLOCK::QAB1(A)
      • Q(j);SBLOCK::S(E)
      • S(d);::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).