MESON Chess Problem Database

Problem Display
PID: 84632 (B2N3Q/1N6/Kp2p1r1/P2k2P1/1p4P1/2bPB3/8/2r5 w - - 0 1)

Szwedowski, Leopold Mieczyslaw

Magyar Sakkelet, 1989

B2N3Q/1N6/Kp2p1r1/P2k2P1/1p4P1/2bPB3/8/2r5

#2

10 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Be1
      • 2.Qd4#
    • 1...Bd2
      • 2.Qd4#
    • 1...Bd4
      • 2.Qxd4#
  • Tries
    • 1.Qh1+?
      • 1...Ke5
        • 2.Sc6#
        • 2.Sf7#
        • 2.Qe4#
      • 1...Rxh1!
    • 1.Qh2?
      • threat
        • 2.Sc5#
        • 2.Sd6#
        • 2.Qd6#
      • 1...Rg7
        • 2.Qd6#
      • 1...Ba1
        • 2.Sc5#
        • 2.Qd6#
      • 1...Be1
        • 2.Sc5#
        • 2.Qd6#
      • 1...Bb2
        • 2.Sc5#
        • 2.Qd6#
      • 1...Bd2
        • 2.Sc5#
        • 2.Qd6#
      • 1...Bd4
        • 2.Qd6#
      • 1...Be5
        • 2.Qg2#
      • 1...Bf6
        • 2.Sc5#
        • 2.Qd6#
      • 1...Bg7
        • 2.Sc5#
        • 2.Qd6#
      • 1...Bh8
        • 2.Sc5#
        • 2.Qd6#
      • 1...e5!
  • Keys
    • 1.Qf8!
      • threat
        • 2.Qd6#
      • 1...Ke5
        • 2.Qd6#
      • 1...Be5
        • 2.Sc5#
        • 2.Qf3#
      • 1...e5
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • B(b);N_GUARD::QAR1(J)
    • B(b);N_GUARD::QAR1(J),XB(b)
  • Tries
    • Try
      • Q(J);CHECK
      • Refutation
        • R(a);XQ(J)
    • Try
      • Q(J);
      • Threat
        • DUALS(3)
      • Vars
        • R(g);::QAR1(J)
        • B(b);::QAR1(J)
        • B(b);SBLOCK::QAB(J)
      • Refutation
        • P(f);
  • Actual
    • Q(J);
    • Threat
      • QAR1(J)
    • Vars
      • K(d);P-FLIGHT::QAB1(J)
      • P(f);SBLOCK::B(H)+S(G)
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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).