MESON Chess Problem Database
Problem Display
PID: 227575 (Q5N1/5pb1/4N1B1/3P4/P5k1/6P1/6K1/8 w - - 0 1)
Hartong, Jan
Het Schaakprobleem, 1926
#2
8 + 3
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Ba1
- 2.Sh6#
- 1...Bb2
- 2.Sh6#
- 1...Bc3
- 2.Sh6#
- 1...Bd4
- 2.Sh6#
- 1...Be5
- 2.Sh6#
- 1...Bf6
- 2.Sxf6#
- 2.Sh6#
- 1...Bh6
- 2.Sf6#
- 2.Sxh6#
- 1...Bf8
- 2.Sf6#
- 1...Bh8
- 2.Sh6#
- 1...Ba1
- Tries
- 1.Qb8?
- threat
- 2.Qf4#
- 1...Be5
- 2.Sh6#
- 1...Bh6
- 2.Sf6#
- 2.Sxh6#
- 1...fxg6!
- threat
- 1.Qd8?
- threat
- 2.Qh4#
- 2.Qg5#
- 1...fxe6
- 2.Qh4#
- 1...fxg6
- 2.Qg5#
- 1...Bf6
- 2.Sxf6#
- 2.Sh6#
- 1...Bh6
- 2.Sf6#
- 2.Sxh6#
- 2.Qh4#
- 1...f6!
- threat
- 1.d6?
- threat
- 2.Qf3#
- 2.Qe4#
- 1...fxg6
- 2.Qf3#
- 1...Be5
- 2.Sh6#
- 2.Qf3#
- 1...Bh6
- 2.Sf6#
- 2.Sxh6#
- 2.Qf3#
- 1...f5
- 2.Qf3#
- 1...fxe6!
- threat
- 1.Qb8?
- Keys
- 1.Qf8!
- 1...Bxf8
- 2.Sf6#
- 1...fxe6
- 2.Qf4#
- 1...fxg6
- 2.Qf3#
- 1...f6
- 2.Qb4#
- 1...Ba1
- 2.Sh6#
- 1...Bb2
- 2.Sh6#
- 1...Bc3
- 2.Sh6#
- 1...Bd4
- 2.Sh6#
- 1...Be5
- 2.Sh6#
- 1...Bf6
- 2.Sxf6#
- 2.Sh6#
- 1...Bh6
- 2.Sf6#
- 2.Sxh6#
- 1...Bh8
- 2.Sh6#
- 1...f5
- 2.Qxf5#
- 1...Bxf8
- 1.Qf8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- B(c);N_GUARD::S(H)
- Tries
- Try
- Q(G);
- Threat
- QAR1(G)
- Vars
- B(c);N_GUARD::S(H)
- Refutation
- P(b);XB(F)
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- P(b);XS(E)::QAR1(G)
- P(b);XB(F)::QAR1(G)
- Refutation
- P(b);
- Try
- P(D);
- Threat
- DUALS(2)
- Vars
- P(b);XB(F)::QAB1(G)
- P(b);::QAB1(G)
- Refutation
- P(b);XS(E)
- Try
- Actual
- Q(G);
- Vars
- B(c);N_GUARD,XQ(G)::S(H)
- P(b);OGATE,XS(E)::QAR1(G)
- P(b);OGATE,XB(F)::QAB1(G)
- P(b);S_CUTB(c)::QAR(G)
- B(c);N_GUARD::S(H)
- P(b);OGATE::QAB1(G),XP(b)
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).