MESON Chess Problem Database
Problem Display
PID: 150595 (6K1/2Q3P1/4k1p1/6n1/7B/4N3/8/8 w - - 0 1)
Akerblom, Johan Axel
Schackvarlden, 1942
#2
5 + 3
| 15148 | Sadier Collection | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Kf6
- 2.Qd6#
- 1...Sf3
- 2.Qe7#
- 1...Sh3
- 2.Qe7#
- 1...Se4
- 2.Qe7#
- 1...Sf7
- 2.Qe7#
- 1...Sh7
- 2.Qe7#
- 1...Kf6
- Tries
- 1.Kf8?
- threat
- 2.Qe7#
- 1...Kf6
- 2.Qd6#
- 2.Qe7#
- 1...Sh7+!
- threat
- 1.Qd8?
- 1...Sf3
- 2.Qe7#
- 2.Qd5#
- 1...Sh3
- 2.Qe7#
- 2.Qd5#
- 1...Se4
- 2.Qe7#
- 2.Qd5#
- 1...Sf7
- 2.Qe7#
- 2.Qd5#
- 1...Sh7
- 2.Qe7#
- 2.Qd5#
- 1...Ke5!
- 1...Sf3
- 1.Qc5?
- 1...Kf6
- 2.Qd6#
- 1...Sf3
- 2.Qe7#
- 2.Qd5#
- 1...Sh3
- 2.Qe7#
- 2.Qd5#
- 1...Se4
- 2.Qe7#
- 2.Qd5#
- 1...Sf7
- 2.Qe7#
- 2.Qd5#
- 1...Sh7
- 2.Qe7#
- 2.Qd5#
- 1...Kd7!
- 1...Kf6
- 1.Qc6+?
- 1...Ke7
- 2.Bxg5#
- 1...Ke5!
- 1...Ke7
- 1.Kf8?
- Keys
- 1.Bg3!
- threat
- 2.Qd6#
- 1...Kf6
- 2.Qe5#
- 1...Se4
- 2.Qf7#
- 1...Sf7
- 2.Qxf7#
- threat
- 1.Bg3!
There are these versions: 109806
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 3
- ADDED MATES = 0
- REMOVED MATES = 3
- Sets
- K(b);P-FLIGHT,P_SPINS(a)::QAR2(C)
- S(a);::QAR1(C)
- Tries
- Try
- K(E);P-FLIGHT
- Threat
- QAR1(C)
- Refutation
- S(a);CHECK
- Try
- Q(C);
- Refutation
- K(b);P-FLIGHT
- Try
- Q(C);
- Vars
- K(b);P-FLIGHT,P_SPINS(a)::QAR2(C)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(C);CHECK
- Vars
- K(b);P-FLIGHT,P_SPINS(a)::B(B),XS(a)
- Refutation
- K(b);P-FLIGHT
- Try
- Actual
- B(B);
- Threat
- QAR1(C)
- Vars
- K(b);P-FLIGHT::QAB1(C)
- S(a);N_GUARD::QAB1(C)
- S(a);N_GUARD::QAB1(C),XS(a)
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).