MESON Chess Problem Database
Problem Display
PID: 8131 (1N1R4/Kb2pq2/1p3P2/1Q1nkPB1/p5Pp/2P3n1/6B1/3rN3 w - - 0 1)
Syzonenko, Viktor N
3/4 Prize, Spisska Borovicka, 1995
#2
11 + 10
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Sd3#
- 1...Rb1
- 2.Sd3#
- 1...Rc1
- 2.Sd3#
- 1...Rd3
- 2.Sxd3#
- 1...Ba6
- 2.Sc6#
- 1...Bc6
- 2.Sxc6#
- 1...Bc8
- 2.Sc6#
- 1...Se4
- 2.Sf3#
- 1...Ra1
- Tries
- 1.Qd3?
- threat
- 2.Sf3#
- 1...Rxe1
- 2.Qd4#
- 1...Rxd3
- 2.Sxd3#
- 1...Sxf5
- 2.Qe4#
- 2.Qxf5#
- 1...Sxc3
- 2.Sd7#
- 1...Se3
- 2.Sd7#
- 1...Sb4
- 2.Sd7#
- 1...Sf4
- 2.Sd7#
- 1...Sc7
- 2.Sd7#
- 1...Sxf6!
- threat
- 1.Qxa4?
- threat
- 2.Sf3#
- 1...Rxe1
- 2.Qd4#
- 1...Sxf5
- 2.Qe4#
- 1...Sxc3
- 2.Qf4#
- 1...Sxf6
- 2.Bf4#
- 2.Qf4#
- 1...Rd3
- 2.Sxd3#
- 1...Rd4
- 2.Qxd4#
- 2.cxd4#
- 1...Se3
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sc7
- 2.Qf4#
- 1...Sb4!
- threat
- 1.Qc6?
- threat
- 2.Sd7#
- 1...Bxc6
- 2.Sxc6#
- 1...Sxc3
- 2.Sf3#
- 1...Sxf6
- 2.Sf3#
- 1...exf6
- 2.Qd6#
- 1...Qe6
- 2.Qxe6#
- 1...Qe8
- 2.Qe6#
- 1...Se3
- 2.Sf3#
- 1...Sb4
- 2.Sf3#
- 1...Sf4
- 2.Sf3#
- 1...Sc7
- 2.Sf3#
- 1...e6
- 2.Qd6#
- 1...Bc8!
- threat
- 1.Qb4?
- threat
- 2.Sf3#
- 2.Sd7#
- 1...Rxe1
- 2.Sd7#
- 2.Qd4#
- 1...Sxf5
- 2.Qe4#
- 1...Sxc3
- 2.Qf4#
- 1...Sxf6
- 2.Bf4#
- 2.Qf4#
- 1...exf6
- 2.Sf3#
- 2.Qd6#
- 1...Qe6
- 2.Sf3#
- 1...Qe8
- 2.Sf3#
- 1...Rd3
- 2.Sxd3#
- 2.Sd7#
- 1...Rd4
- 2.Sd7#
- 2.Qxd4#
- 2.cxd4#
- 1...Bc6
- 2.Sf3#
- 2.Sxc6#
- 1...Bc8
- 2.Sf3#
- 2.Sc6#
- 1...Se3
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sc7
- 2.Qf4#
- 1...e6
- 2.Sf3#
- 2.Qd6#
- 1...Sxb4!
- threat
- 1.Qd3?
- Keys
- 1.Qc4!
- threat
- 2.Sf3#
- 1...Rxe1
- 2.Qd4#
- 1...Sxf5
- 2.Qe4#
- 1...Sxc3
- 2.Qf4#
- 1...Sxf6
- 2.Bf4#
- 2.Qf4#
- 1...Rd3
- 2.Sxd3#
- 1...Rd4
- 2.Qxd4#
- 2.cxd4#
- 1...Se3
- 2.Qf4#
- 1...Sb4
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sc7
- 2.Qf4#
- threat
- 1.Qc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 7
- Sets
- R(a);N_GUARD::S(A)
- R(a);N_GUARD::S(A),XR(a)
- B(h);N_GUARD::S(J)
- B(h);N_GUARD::S(J),XB(h)
- S(b);SBLOCK::S(A)
- Tries
- Try
- Q(E);N_PINS(e)
- Threat
- S(A)
- Vars
- R(a);N_GUARD,XS(A)::QAB1(E)
- R(a);XQ(E)::S(A),XR(a)
- S(e);XP(C)::S(J)
- S(e);::S(J)
- Refutation
- S(e);XP(H)
- Try
- Q(E);N_PINS(e),XP(c)
- Threat
- S(A)
- Vars
- R(a);N_GUARD,XS(A)::QAB1(E)
- S(b);N_GUARD,XP(F)::QAR1(E)
- S(e);N_GUARD,XP(C)::QAB1(E)
- R(a);N_GUARD::S(A),XR(a)
- S(e);N_GUARD::QAB1(E)
- S(e);N_GUARD::QAB1(E),XS(e)
- Refutation
- S(e);
- Try
- Q(E);N_PINS(e)
- Threat
- S(J)
- Vars
- B(h);XQ(E)::S(J),XB(h)
- S(e);XP(C)::S(A)
- S(e);XP(H)::S(A)
- P(i);N_GUARD,XP(H)::QAB1(E)
- Q(j);N_GUARD::QAR1(E),XQ(j)
- Q(j);N_GUARD::QAR1(E)
- S(e);::S(A)
- P(i);N_GUARD::QAB1(E)
- Refutation
- B(h);
- Try
- Q(E);N_PINS(e)
- Threat
- DUALS(2)
- Vars
- S(b);N_GUARD,XP(F)::QAR1(E)
- S(e);N_GUARD,XP(C)::QAB1(E)
- Q(j);::S(A)
- S(e);N_GUARD::QAB1(E)
- S(e);N_GUARD::QAB1(E),XS(e)
- Refutation
- S(e);XQ(E)
- Try
- Actual
- Q(E);N_PINS(e)
- Threat
- S(A)
- Vars
- R(a);N_GUARD,XS(A)::QAB1(E)
- S(b);N_GUARD,XP(F)::QAR1(E)
- S(e);N_GUARD,XP(C)::QAB1(E)
- R(a);N_GUARD::S(A),XR(a)
- S(e);N_GUARD::QAB1(E)
- S(e);N_GUARD::QAB1(E),XS(e)
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).