MESON Chess Problem Database

Problem Display
PID: 103174 (7R/4Q3/6kb/3K4/5p2/4NR1P/8/8 w - - 0 1)

Markovtsy, Vassyl Yuriovich

1st Prize, Wola Gulowska, 1997

7R/4Q3/6kb/3K4/5p2/4NR1P/8/8

#2

6 + 3

15345 Wola Gulowska Award 1997
145 StrateGems 1998
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sg2?
      • 1...Kf5
        • 2.Sh4#
      • 1...Kh5
        • 2.Sxf4#
      • 1...Bg7
        • 2.Sh4#
      • 1...Bf8
        • 2.Sh4#
      • 1...Bg5!
    • 1.Sg4?
      • 1...Kf5
        • 2.Qf6#
      • 1...Kh5
        • 2.Rxh6#
      • 1...Bg5
        • 2.Qh7#
      • 1...Bf8
        • 2.Qf6#
      • 1...Bg7!
    • 1.Rg3+?
      • 1...Kh5
        • 2.Qg5#
      • 1...Bg5
        • 2.Rxg5#
      • 1...fxg3!
    • 1.Qf6+?
      • 1...Kh5
        • 2.Rxh6#
        • 2.Qxh6#
      • 1...Kxf6!
    • 1.Qe6+?
      • 1...Kg5
        • 2.Qxh6#
      • 1...Kh5
        • 2.Qg4#
        • 2.Qxh6#
      • 1...Kg7!
    • 1.Qh7+?
      • 1...Kg5
        • 2.Qxh6#
      • 1...Kh5
        • 2.Qxh6#
      • 1...Kf6!
  • Keys
    • 1.h4!
      • 1...Kh5
        • 2.Qg5#
      • 1...fxe3
        • 2.Qf7#
      • 1...Bg5
        • 2.h5#
      • 1...Bg7
        • 2.h5#
      • 1...Bf8
        • 2.h5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(A);
      • Vars
        • K(b);P_SPINP(a),S_FLIGHT::S(A)
        • K(b);P_SPINB(c),S_FLIGHT::S(A),XP(a)
        • B(c);::S(A)
      • Refutation
        • B(c);
    • Try
      • S(A);
      • Vars
        • K(b);P_SPINP(a),S_FLIGHT::QAR1(E)
        • K(b);P_SPINB(c),S_FLIGHT::R1(F),XB(c)
        • B(c);SBLOCK::QAB1(E)
        • B(c);::QAR1(E)
      • Refutation
        • B(c);
    • Try
      • R(B);CHECK
      • Vars
        • K(b);P_SPINB(c),S_FLIGHT::QAR1(E)
        • B(c);N_GUARD,P_SPINB(c)::R1(B),XB(c)
      • Refutation
        • P(a);XR(B)
    • Try
      • Q(E);CHECK
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a),XQ(E)
    • Try
      • Q(E);CHECK
      • Vars
        • K(b);OGATE,P-FLIGHT::QAB1(E),XB(c)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB1(E),XB(c)
        • K(b);P_SPINB(c),S_FLIGHT::QAR1(E),XB(c)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
  • Actual
    • P(C);
    • Vars
      • K(b);P_SPINB(c),S_FLIGHT::QAR1(E)
      • P(a);XS(A)::QAB1(E)
      • B(c);::P(C)
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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).