MESON Chess Problem Database

Problem Display
PID: 203527 (2N4K/2pP1kp1/R2p3b/3P3b/B5pP/B7/1Q6/8 w - - 0 1)

Jamnicki, Bozidar

Novosti, 1924

2N4K/2pP1kp1/R2p3b/3P3b/B5pP/B7/1Q6/8

#2

9 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Qxg7#
    • 1...Bd2
      • 2.Qxg7#
    • 1...Be3
      • 2.Qxg7#
    • 1...Bf4
      • 2.Qxg7#
    • 1...Bg5
      • 2.Qxg7#
  • Tries
    • 1.Qf2+?
      • 1...Kg6
        • 2.Se7#
        • 2.Bc2#
      • 1...Bf4!
    • 1.d8S+?
      • 1...Kg6
        • 2.Se7#
        • 2.Bc2#
      • 1...Kf8!
  • Keys
    • 1.Qe5!
      • threat
        • 2.Qf5#
      • 1...Kg6
        • 2.Qe6#
      • 1...Kf8
        • 2.Qe7#
      • 1...dxe5
        • 2.d8S#
      • 1...Bg6
        • 2.Qe7#
      • 1...Bg5
        • 2.Qxg7#
      • 1...g6
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 4
  • Sets
    • B(d);N_GUARD::QAR1(A),XP(g)
  • Tries
    • Try
      • Q(A);CHECK
      • Refutation
        • B(d);P_SPINB(d)
    • Try
      • P(G);CHECK
      • Refutation
        • K(f);P-FLIGHT,P_SPINP(c)
  • Actual
    • Q(A);
    • Threat
      • QAR2(A)
    • Vars
      • K(f);P_SPINP(c),S_FLIGHT::QAR2(A)
      • K(f);P-FLIGHT,P_SPINP(c)::QAB1(A)
      • P(c);XQ(A)::P=S
      • B(b);SBLOCK::QAR1(A)
      • B(d);N_GUARD::QAR1(A),XP(g)
      • P(g);SBLOCK::QAR1(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).