MESON Chess Problem Database
Problem Display
PID: 208171 (4NQ2/4pp2/rb1R4/k2p4/p2Bn3/P7/3p1p2/3K1B2 w - - 0 1)
Klark, Dmitry Vasilevich
Deutsche Schachzeitung, 1875
#2
7 + 10
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Ra7
- 2.Bxb6#
- 1...Ra8
- 2.Bxb6#
- 1...Bxd4
- 2.Rxa6#
- 1...Bc5
- 2.Rxa6#
- 1...Ba7
- 2.Rxa6#
- 1...Bc7
- 2.Rxa6#
- 1...Bd8
- 2.Rxa6#
- 1...Sc3+
- 2.Bxc3#
- 1...Sg3
- 2.Bc3#
- 1...Sc5
- 2.Bc3#
- 1...Sg5
- 2.Bc3#
- 1...Sxd6
- 2.Bc3#
- 1...Sf6
- 2.Bc3#
- 1...Ra7
- Tries
- 1.Rxd5+?
- 1...Sc5
- 2.Bc3#
- 1...Bc5!
- 1...Sc5
- 1.Rxd5+?
- Keys
- 1.Rf6!
- 1...Sc3+
- 2.Bxc3#
- 1...Bxd4
- 2.Rxa6#
- 1...Sxf6
- 2.Bc3#
- 1...exf6
- 2.Qb4#
- 1...e5
- 2.Qb4#
- 1...Ra7
- 2.Bxb6#
- 1...Ra8
- 2.Bxb6#
- 1...Bc5
- 2.Rxa6#
- 1...Ba7
- 2.Rxa6#
- 1...Bc7
- 2.Rxa6#
- 1...Bd8
- 2.Rxa6#
- 1...Sg3
- 2.Bc3#
- 1...Sc5
- 2.Bc3#
- 1...Sg5
- 2.Bc3#
- 1...Sd6
- 2.Bc3#
- 1...e6
- 2.Qb4#
- 1...Sc3+
- 1.Rf6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- R(g);N_GUARD::B(D),XB(h)
- B(h);OGATE,XB(D)::R1(E),XR(g)
- B(h);OGATE::R1(E),XR(g)
- S(d);CHECK,N_GUARD::B(D),XS(d)
- S(d);N_GUARD::B(D)
- S(d);N_GUARD,XR(E)::B(D)
- Tries
- Try
- R(E);CHECK,XP(f)
- Vars
- S(d);P_SPINS(d)::B(D)
- Refutation
- B(h);P_SPINB(h)
- Try
- Actual
- R(E);
- Vars
- S(d);CHECK,N_GUARD::B(D),XS(d)
- B(h);OGATE,XB(D)::R1(E),XR(g)
- S(d);N_GUARD,XR(E)::B(D)
- P(i);OGATE,XR(E)::QAB1(G)
- P(i);OGATE::QAB1(G)
- R(g);N_GUARD::B(D),XB(h)
- B(h);OGATE::R1(E),XR(g)
- S(d);N_GUARD::B(D)
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).