MESON Chess Problem Database

Problem Display
PID: 41107 (4N1K1/8/2P3p1/N2k1pr1/1P1PR3/2p1pR1b/2B1n3/7Q w - - 0 1)

Chepizhni, Viktor Ivanovich

1st Prize, Shakhmatnaya kompozitsiya, 2000

4N1K1/8/2P3p1/N2k1pr1/1P1PR3/2p1pR1b/2B1n3/7Q

#2

10 + 8

145 StrateGems 2002
56 The Problemist 2002
56 The Problemist 2002(1)
145 StrateGems 2003
23 Die Schwalbe 2005
6166 FIDE Album (1998-2000) 2007
6167 Viktor Chepizhny 2007
56 The Problemist 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Rfxe3?
      • threat
        • 2.Bb3#
      • 1...Sxd4
        • 2.Re5#
      • 1...fxe4
        • 2.Qxe4#
      • 1...Sc1!
    • 1.Rff4?
      • threat
        • 2.Bb3#
        • 2.Re5#
      • 1...Sxf4
        • 2.Bb3#
      • 1...fxe4
        • 2.Qxe4#
      • 1...Sc1
        • 2.Re5#
      • 1...Sxd4!
    • 1.Rxf5+?
      • 1...Rxf5
        • 2.Bb3#
      • 1...Bxf5
        • 2.Bb3#
      • 1...gxf5+!
    • 1.Qd1?
      • threat
        • 2.Re5#
      • 1...Sxd4
        • 2.Qxd4#
      • 1...fxe4
        • 2.Bb3#
      • 1...f4!
  • Keys
    • 1.Re6!
      • threat
        • 2.Rd6#
      • 1...Kxd4
        • 2.Qd1#
      • 1...Kxe6
        • 2.Rxe3#
      • 1...Sxd4
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);XP(c)
      • Threat
        • B(B)
      • Vars
        • S(a);SBLOCK,XP(E)::QAB(A)+R(F),DCHECK
        • P(f);OGATE,P_SPINP(f),XR(F)::QAB1(A),XP(f)
      • Refutation
        • S(a);
    • Try
      • R(C);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);XR(C)::B(B)
        • P(f);OGATE,P_SPINP(f),XR(F)::QAB1(A),XP(f)
        • S(a);::QAB(A)+R(F),DCHECK
      • Refutation
        • S(a);XP(E)
    • Try
      • R(C);CHECK,XP(f)
      • Vars
        • R(g);XR(C)::B(B)
        • B(d);XR(C)::B(B)
      • Refutation
        • P(h);CHECK,XR(C)
    • Try
      • Q(A);
      • Threat
        • R1(F)
      • Vars
        • S(a);OGATE,P_SPINS(a),XP(E)::QAR1(A),XS(a)
        • P(f);SBLOCK,XR(F)::B(B)
      • Refutation
        • P(f);
  • Actual
    • R(F);
    • Threat
      • R1(F)
    • Vars
      • K(e);OGATEB,P-FLIGHT,XP(E)::QAR(A)
      • K(e);S_FLIGHT,XR(F)::R(C),XP(c)
      • S(a);SBLOCK,XP(E)::S(I)
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).