MESON Chess Problem Database

Problem Display
PID: 237330 (4R3/8/7p/5p1K/5k2/5N2/3P1b1P/3Q3N w - - 0 1)

Dyachuk, Vasyl Vasilovich

7th Place, Kievske Pyatiborstvo TT, 1997

4R3/8/7p/5p1K/5k2/5N2/3P1b1P/3Q3N

#2

7 + 4

15148 Sadier Collection 2021
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Be3
      • 2.dxe3#
    • 1...Bg3
      • 2.hxg3#
  • Tries
    • 1.Qe1?
      • 1...Kxf3
        • 2.Qxf2#
      • 1...Bg1
        • 2.Qg3#
      • 1...Be3
        • 2.Qg3#
        • 2.Qxe3#
      • 1...Bg3
        • 2.Qxg3#
        • 2.Qe3#
      • 1...Bd4
        • 2.Qg3#
      • 1...Bh4
        • 2.Qe3#
      • 1...Bc5
        • 2.Qg3#
      • 1...Bb6
        • 2.Qg3#
      • 1...Ba7
        • 2.Qg3#
      • 1...Bxe1!
    • 1.Qg1?
      • 1...Kxf3
        • 2.Qxf2#
      • 1...Be1
        • 2.Qe3#
      • 1...Be3
        • 2.Qxe3#
        • 2.Qg3#
      • 1...Bg3
        • 2.Qe3#
        • 2.Qxg3#
      • 1...Bd4
        • 2.Qg3#
      • 1...Bh4
        • 2.Qe3#
      • 1...Bc5
        • 2.Qg3#
      • 1...Bb6
        • 2.Qg3#
      • 1...Ba7
        • 2.Qg3#
      • 1...Bxg1!
  • Keys
    • 1.Qf1!
      • 1...Kxf3
        • 2.Qxf2#
      • 1...Bg1
        • 2.Sxg1#
      • 1...Be1
        • 2.Sxe1#
      • 1...Be3
        • 2.dxe3#
      • 1...Bg3
        • 2.hxg3#
      • 1...Bd4
        • 2.Sxd4#
      • 1...Bh4
        • 2.Sxh4#
      • 1...Bc5
        • 2.Sd4#
      • 1...Bb6
        • 2.Sd4#
      • 1...Ba7
        • 2.Sd4#

Anticipated by 151980(1915)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • B(a);OGATE::P(C),XB(a)
    • B(a);OGATE::P(D),XB(a)
  • Tries
    • Try
      • Q(A);
      • Vars
        • K(b);OGATEB,P-FLIGHT,XS(E)::QAR1(A),XB(a)
        • B(a);OGATE::QAB1(A)
        • B(a);N_GUARD::QAB1(A)
      • Refutation
        • B(a);XQ(A)
    • Try
      • Q(A);
      • Vars
        • K(b);OGATEB,P-FLIGHT,XS(E)::QAR1(A),XB(a)
        • B(a);OGATE::QAB1(A)
        • B(a);N_GUARD::QAB1(A)
      • Refutation
        • B(a);XQ(A)
  • Actual
    • Q(A);
    • Vars
      • K(b);OGATEB,P-FLIGHT,P_SPINB(a),XS(E)::QAR1(A),XB(a)
      • B(a);::QAR(A)+S(E),XB(a)
      • B(a);OGATE::P(C),XB(a)
      • B(a);OGATE::P(D),XB(a)
      • B(a);::QAR(A)+S(E)
HTML5 logo

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).