MESON Chess Problem Database
Problem Display
PID: 159500 (rbQ5/1p5n/4pR2/1N1bk3/3p3B/5p2/4nN2/4R2K w - - 0 1)
Antonov, Yuri Mikhailovich
Sahs, 1981
#2
7 + 10
| 15148 | Sadier Collection | 2016 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qxb8#
- 1...Ra2
- 2.Qxb8#
- 1...Ra3
- 2.Qxb8#
- 1...Ra4
- 2.Qxb8#
- 1...Ra5
- 2.Qxb8#
- 1...Ra7
- 2.Qxb8#
- 1...Be4
- 2.Qxe6#
- 1...Bc6
- 2.Qxe6#
- 1...Ba7
- 2.Qc7#
- 1...Bc7
- 2.Qxc7#
- 1...d3
- 2.Qc3#
- 1...Ra1
- Tries
- 1.Rxe2+?
- 1...Be4
- 2.Qxe6#
- 2.Qc5#
- 1...fxe2+!
- 1...Be4
- 1.Qc2?
- threat
- 2.Sg4#
- 1...Sxf6
- 2.Bg3#
- 1...Ba2
- 2.Qe4#
- 1...Bb3
- 2.Qe4#
- 1...Bc4
- 2.Qe4#
- 1...Be4
- 2.Qxe4#
- 1...d3
- 2.Qb2#
- 2.Qc3#
- 1...Bc6!
- threat
- 1.Rxe2+?
- Keys
- 1.Qd8!
- threat
- 2.Bg3#
- 1...Sxf6
- 2.Qxf6#
- 1...Be4
- 2.Sg4#
- threat
- 1.Qd8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 10
- Sets
- R(i);N_GUARD,P_PINR(A)::QAB(G),XB(j)
- R(i);N_GUARD::QAB(G),XB(j)
- B(d);N_GUARD,N_SPINS(a)::QAR1(G),XP(f)
- B(d);N_GUARD::QAR1(G),XP(f)
- B(j);N_GUARD::QAB(G)
- B(j);N_GUARD::QAB(G),XB(j)
- P(c);OGATEB::QAB(G)
- Tries
- Try
- R(A);CHECK,XS(a)
- Refutation
- P(b);CHECK,XR(A)
- Try
- Q(G);
- Threat
- S(C)
- Vars
- S(h);SBLOCK,XR(F)::B(D)
- B(d);N_GUARD::QAR1(G)
- B(d);N_GUARD,N_SPINS(a)::QAR1(G),XB(d)
- Refutation
- B(d);
- Try
- Actual
- Q(G);
- Threat
- B(D)
- Vars
- S(h);OGATE,XR(F)::QAB1(G),XS(h)
- B(d);N_SPINS(a),SBLOCK::S(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).