MESON Chess Problem Database

Problem Display
PID: 51991 (3B3N/R1Pk3p/4p2K/4P3/P7/8/Q7/8 w - - 0 1)

Chepizhni, Viktor Ivanovich

1/2 Prize, Erokhin MT, 2002

3B3N/R1Pk3p/4p2K/4P3/P7/8/Q7/8

#2

8 + 3

23 Die Schwalbe 2004
6167 Viktor Chepizhny 2007
15174 FIDE Album (2001-2003) 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.c8Q#
      • 2.c8R#
    • 1...Kc8
      • 2.Qxe6#
  • Tries
    • 1.Kxh7?
      • 1...Kc6
        • 2.c8Q#
        • 2.c8R#
      • 1...Kc8
        • 2.Qxe6#
      • 1...Ke8!
    • 1.Sg6?
      • 1...Kc6
        • 2.c8Q#
        • 2.c8R#
      • 1...Kc8
        • 2.Qxe6#
      • 1...Ke8
        • 2.Qxe6#
      • 1...hxg6!
    • 1.Sf7?
      • 1...Kc6
        • 2.c8Q#
        • 2.c8R#
      • 1...Kc8
        • 2.Qxe6#
      • 1...Ke8!
    • 1.Bh4?
      • 1...Kc8
        • 2.Qxe6#
      • 1...Ke8
        • 2.c8Q#
        • 2.c8R#
      • 1...Kc6!
    • 1.Bg5?
      • 1...Kc8
        • 2.Qxe6#
      • 1...Ke8
        • 2.c8Q#
        • 2.c8R#
      • 1...Kc6!
    • 1.Bf6?
      • 1...Kc8
        • 2.Qxe6#
      • 1...Ke8
        • 2.c8Q#
        • 2.c8R#
      • 1...Kc6!
    • 1.Ra8?
      • 1...Kc6
        • 2.c8Q#
      • 1...Ke8!
    • 1.Qb3?
      • 1...Kc6
        • 2.Qb5#
        • 2.c8Q#
        • 2.c8R#
      • 1...Kc8
        • 2.Qxe6#
      • 1...Ke8!
    • 1.Qc4?
      • 1...Kc8
        • 2.Qxe6#
      • 1...Ke8!
    • 1.Qa3?
      • 1...Kc6
        • 2.Qd6#
      • 1...Ke8
        • 2.Qe7#
      • 1...Kc8!
    • 1.c8Q+?
      • 1...Ke8
        • 2.Bh4#
        • 2.Ba5#
        • 2.Bg5#
        • 2.Bb6#
        • 2.Bf6#
        • 2.Be7#
      • 1...Kxc8!
    • 1.c8R+?
      • 1...Ke8
        • 2.Bh4#
        • 2.Ba5#
        • 2.Bg5#
        • 2.Bb6#
        • 2.Bf6#
        • 2.Be7#
      • 1...Kxc8!
  • Keys
    • 1.Be7!
      • 1...Kc6
        • 2.Qxe6#
      • 1...Kxe7
        • 2.c8Q#
        • 2.c8R#
      • 1...Kc8
        • 2.Qxe6#
      • 1...Ke8
        • 2.c8Q#
        • 2.c8R#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::P=Q
    • K(b);S_FLIGHT::QAB(A),XP(a)
  • Tries
    • Try
      • K(D);P-FLIGHT,XP(c)
      • Vars
        • K(b);S_FLIGHT::P=Q
        • K(b);S_FLIGHT::QAB(A),XP(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(H);
      • Vars
        • K(b);S_FLIGHT::P=Q
        • K(b);S_FLIGHT::QAB(A),XP(a)
        • K(b);S_FLIGHT::QAR2(A),XP(a)
      • Refutation
        • P(c);XS(H)
    • Try
      • S(H);
      • Vars
        • K(b);S_FLIGHT::P=Q
        • K(b);S_FLIGHT::QAB(A),XP(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(G);
      • Vars
        • K(b);S_FLIGHT::QAB(A),XP(a)
        • K(b);S_FLIGHT::P=Q
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(G);
      • Vars
        • K(b);S_FLIGHT::QAB(A),XP(a)
        • K(b);S_FLIGHT::P=Q
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(G);
      • Vars
        • K(b);S_FLIGHT::QAB(A),XP(a)
        • K(b);S_FLIGHT::P=Q
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(E);
      • Vars
        • K(b);S_FLIGHT::P=Q
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);S_FLIGHT::QAB(A),XP(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);S_FLIGHT::QAB(A),XP(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);S_FLIGHT::QAR1(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • P(F);CHECK
      • Refutation
        • K(b);S_FLIGHT,XQ(F)
    • Try
      • P(F);CHECK
      • Refutation
        • K(b);S_FLIGHT,XR(F)
  • Actual
    • B(G);
    • Vars
      • K(b);S_FLIGHT::QAR2(A),XP(a)
      • K(b);P-FLIGHT,XB(G)::P=Q
      • K(b);S_FLIGHT::QAB(A),XP(a)
      • K(b);S_FLIGHT::P=Q
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).