MESON Chess Problem Database
Problem Display
PID: 99800 (8/7B/2n1pB2/2PkP3/2Rbr3/1P2pRP1/2N1K2P/3Q4 w - - 0 1)
Chernyavsky, Mykola Vasilovich
Shedey, Sergey Oleksandrovich
Magyar Sakkelet, 1980
#2
12 + 6
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rf4
- 2.Sxe3#
- 1...Rg4
- 2.Sxe3#
- 1...Rh4
- 2.Sxe3#
- 1...Sb4
- 2.Sxb4#
- 1...Sa5
- 2.Sb4#
- 1...Sxe5
- 2.Sb4#
- 1...Sa7
- 2.Sb4#
- 1...Se7
- 2.Sb4#
- 1...Sb8
- 2.Sb4#
- 1...Sd8
- 2.Sb4#
- 1...Rf4
- Tries
- 1.Bg7?
- 1...Sxe5
- 2.Sb4#
- 1...Sb4
- 2.Sxb4#
- 1...Sa5
- 2.Sb4#
- 1...Sa7
- 2.Sb4#
- 1...Se7
- 2.Sb4#
- 1...Sb8
- 2.Sb4#
- 1...Sd8
- 2.Sb4#
- 1...Rf4
- 2.Sxe3#
- 1...Rg4
- 2.Sxe3#
- 1...Rh4
- 2.Sxe3#
- 1...Rxe5!
- 1...Sxe5
- 1.Bh8?
- 1...Sxe5
- 2.Sb4#
- 1...Sb4
- 2.Sxb4#
- 1...Sa5
- 2.Sb4#
- 1...Sa7
- 2.Sb4#
- 1...Se7
- 2.Sb4#
- 1...Sb8
- 2.Sb4#
- 1...Sd8
- 2.Sb4#
- 1...Rf4
- 2.Sxe3#
- 1...Rg4
- 2.Sxe3#
- 1...Rh4
- 2.Sxe3#
- 1...Rxe5!
- 1...Sxe5
- 1.Bg6?
- 1...Sxe5
- 2.Sb4#
- 1...Sb4
- 2.Sxb4#
- 1...Sa5
- 2.Sb4#
- 1...Sa7
- 2.Sb4#
- 1...Se7
- 2.Sb4#
- 1...Sb8
- 2.Sb4#
- 1...Sd8
- 2.Sb4#
- 1...Rf4
- 2.Sxe3#
- 1...Rg4
- 2.Sxe3#
- 1...Rh4
- 2.Sxe3#
- 1...Rxe5!
- 1...Sxe5
- 1.Rf1?
- 1...Sxe5
- 2.Sb4#
- 1...Sb4
- 2.Sxb4#
- 1...Sa5
- 2.Sb4#
- 1...Sa7
- 2.Sb4#
- 1...Se7
- 2.Sb4#
- 1...Sb8
- 2.Sb4#
- 1...Sd8
- 2.Sb4#
- 1...Rf4
- 2.Sxe3#
- 1...Rg4
- 2.Sxe3#
- 1...Rh4
- 2.Sxe3#
- 1...Rxe5!
- 1...Sxe5
- 1.Rf4?
- threat
- 2.Bxe4#
- 1...Rxf4
- 2.Sxe3#
- 1...Rxe5!
- threat
- 1.Rc3?
- 1...Sxe5
- 2.Sb4#
- 1...Sb4
- 2.Sxb4#
- 1...Sa5
- 2.Sb4#
- 1...Sa7
- 2.Sb4#
- 1...Se7
- 2.Sb4#
- 1...Sb8
- 2.Sb4#
- 1...Sd8
- 2.Sb4#
- 1...Rf4
- 2.Sxe3#
- 1...Rg4
- 2.Sxe3#
- 1...Rh4
- 2.Sxe3#
- 1...Rxe5!
- 1...Sxe5
- 1.Qd3?
- threat
- 2.Bxe4#
- 2.Qxe4#
- 1...Rf4
- 2.Sxe3#
- 1...Rg4
- 2.Sxe3#
- 1...Rh4
- 2.Sxe3#
- 1...Rxe5!
- threat
- 1.Qxd4+?
- 1...Rxd4
- 2.Sxe3#
- 1...Sxd4+!
- 1...Rxd4
- 1.h3?
- 1...Sxe5
- 2.Sb4#
- 1...Sb4
- 2.Sxb4#
- 1...Sa5
- 2.Sb4#
- 1...Sa7
- 2.Sb4#
- 1...Se7
- 2.Sb4#
- 1...Sb8
- 2.Sb4#
- 1...Sd8
- 2.Sb4#
- 1...Rf4
- 2.Sxe3#
- 1...Rg4
- 2.Sxe3#
- 1...Rh4
- 2.Sxe3#
- 1...Rxe5!
- 1...Sxe5
- 1.h4?
- 1...Rxh4
- 2.Sxe3#
- 1...Sxe5
- 2.Sb4#
- 1...Sb4
- 2.Sxb4#
- 1...Sa5
- 2.Sb4#
- 1...Sa7
- 2.Sb4#
- 1...Se7
- 2.Sb4#
- 1...Sb8
- 2.Sb4#
- 1...Sd8
- 2.Sb4#
- 1...Rf4
- 2.Sxe3#
- 1...Rg4
- 2.Sxe3#
- 1...Rxe5!
- 1...Rxh4
- 1.g4?
- 1...Rxg4
- 2.Sxe3#
- 1...Sxe5
- 2.Sb4#
- 1...Sb4
- 2.Sxb4#
- 1...Sa5
- 2.Sb4#
- 1...Sa7
- 2.Sb4#
- 1...Se7
- 2.Sb4#
- 1...Sb8
- 2.Sb4#
- 1...Sd8
- 2.Sb4#
- 1...Rf4
- 2.Sxe3#
- 1...Rxe5!
- 1...Rxg4
- 1.Bg7?
- Keys
- 1.Qh1!
- 1...Rxe5
- 2.Rf5#
- 1...Bxc5
- 2.Bxe4#
- 1...Bxe5
- 2.Bxe4#
- 1...Sxe5
- 2.Sb4#
- 1...Sb4
- 2.Sxb4#
- 1...Sa5
- 2.Sb4#
- 1...Sa7
- 2.Sb4#
- 1...Se7
- 2.Sb4#
- 1...Sb8
- 2.Sb4#
- 1...Sd8
- 2.Sb4#
- 1...Rf4
- 2.Rxf4#
- 1...Rg4
- 2.Rf4#
- 1...Rh4
- 2.Rf4#
- 1...Ba1
- 2.Bxe4#
- 1...Bb2
- 2.Bxe4#
- 1...Bc3
- 2.Bxe4#
- 1...Rxe5
- 1.Qh1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 3
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- R(c);N_GUARD::S(B),XP(a)
- S(e);N_GUARD::S(B),XS(e)
- S(e);N_GUARD::S(B)
- S(e);N_GUARD,XP(J)::S(B)
- Tries
- Try
- B(K);
- Vars
- S(e);N_GUARD,XP(J)::S(B)
- S(e);N_GUARD::S(B),XS(e)
- S(e);N_GUARD::S(B)
- R(c);N_GUARD::S(B),XP(a)
- Refutation
- R(c);XP(J)
- Try
- B(K);
- Vars
- S(e);N_GUARD,XP(J)::S(B)
- S(e);N_GUARD::S(B),XS(e)
- S(e);N_GUARD::S(B)
- R(c);N_GUARD::S(B),XP(a)
- Refutation
- R(c);XP(J)
- Try
- B(L);
- Vars
- S(e);N_GUARD,XP(J)::S(B)
- S(e);N_GUARD::S(B),XS(e)
- S(e);N_GUARD::S(B)
- R(c);N_GUARD::S(B),XP(a)
- Refutation
- R(c);XP(J)
- Try
- R(F);
- Vars
- S(e);N_GUARD,XP(J)::S(B)
- S(e);N_GUARD::S(B),XS(e)
- S(e);N_GUARD::S(B)
- R(c);N_GUARD::S(B),XP(a)
- Refutation
- R(c);XP(J)
- Try
- R(F);
- Threat
- B(L),XR(c)
- Vars
- R(c);N_GUARD,XR(F)::S(B),XP(a)
- Refutation
- R(c);XP(J)
- Try
- R(H);
- Vars
- S(e);N_GUARD,XP(J)::S(B)
- S(e);N_GUARD::S(B),XS(e)
- S(e);N_GUARD::S(B)
- R(c);N_GUARD::S(B),XP(a)
- Refutation
- R(c);XP(J)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(c);N_GUARD::S(B),XP(a)
- Refutation
- R(c);XP(J)
- Try
- Q(A);CHECK,XB(b)
- Vars
- R(c);XQ(A)::S(B),XP(a)
- Refutation
- S(e);CHECK,XQ(A)
- Try
- P(D);
- Vars
- S(e);N_GUARD,XP(J)::S(B)
- S(e);N_GUARD::S(B),XS(e)
- S(e);N_GUARD::S(B)
- R(c);N_GUARD::S(B),XP(a)
- Refutation
- R(c);XP(J)
- Try
- P(D);
- Vars
- R(c);N_GUARD,XP(D)::S(B),XP(a)
- S(e);N_GUARD,XP(J)::S(B)
- S(e);N_GUARD::S(B),XS(e)
- S(e);N_GUARD::S(B)
- R(c);N_GUARD::S(B),XP(a)
- Refutation
- R(c);XP(J)
- Try
- P(G);
- Vars
- R(c);N_GUARD,XP(G)::S(B),XP(a)
- S(e);N_GUARD,XP(J)::S(B)
- S(e);N_GUARD::S(B),XS(e)
- S(e);N_GUARD::S(B)
- R(c);N_GUARD::S(B),XP(a)
- Refutation
- R(c);XP(J)
- Try
- Actual
- Q(A);N_PINB(b)
- Vars
- R(c);OGATEB,XP(J)::QAB(A)+R(F)
- B(b);XP(I)::B(L),XR(c)
- B(b);XP(J)::B(L),XR(c)
- S(e);N_GUARD,XP(J)::S(B)
- S(e);N_GUARD::S(B),XS(e)
- S(e);N_GUARD::S(B)
- R(c);OGATEB::QAB(A)+R(F),XR(c)
- R(c);OGATEB::QAB(A)+R(F)
- B(b);::B(L),XR(c)
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).