MESON Chess Problem Database
Problem Display
PID: 202463 (N7/8/3p4/k1bn3R/3p4/1K1B4/8/2B5 w - - 0 1)
Oosterholt, Cornelis Johannes
De Maasbode, 1923
#2
5 + 5
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bb6
- 2.Bd2#
- 1...Ba7
- 2.Bd2#
- 1...Se3
- 2.Bd2#
- 1...Sf4
- 2.Bd2#
- 1...Sb6
- 2.Bd2#
- 1...Sf6
- 2.Bd2#
- 1...Sc7
- 2.Bd2#
- 1...Se7
- 2.Bd2#
- 1...Bb6
- Tries
- 1.Bd2+?
- 1...Bb4
- 2.Bxb4#
- 2.Rxd5#
- 1...Sb4
- 2.Bxb4#
- 1...Sc3!
- 1...Bb4
- 1.Ba3?
- 1...Bb4
- 2.Bxb4#
- 1...Bb6
- 2.Bb4#
- 1...Ba7
- 2.Bb4#
- 1...Sc3
- 2.Bb4#
- 1...Se3
- 2.Bb4#
- 1...Sb4
- 2.Bxb4#
- 1...Sf4
- 2.Bb4#
- 1...Sb6
- 2.Bb4#
- 1...Sf6
- 2.Bb4#
- 1...Sc7
- 2.Bb4#
- 1...Se7
- 2.Bb4#
- 1...Bxa3!
- 1...Bb4
- 1.Bd2+?
- Keys
- 1.Bg5!
- 1...Ba3
- 2.Bd8#
- 1...Bb4
- 2.Bd8#
- 1...Bb6
- 2.Bd2#
- 1...Ba7
- 2.Bd2#
- 1...Sc3
- 2.Bd8#
- 1...Se3
- 2.Bd8#
- 1...Sb4
- 2.Bd8#
- 1...Sf4
- 2.Bd8#
- 1...Sb6
- 2.Bd2#
- 1...Sf6
- 2.Bd2#
- 1...Sc7
- 2.Bd2#
- 1...Se7
- 2.Bd2#
- 1...Ba3
- 1.Bg5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- B(c);N_GUARD,P_SPINS(d)::B(A)
- S(d);N_GUARD,P_SPINB(c)::B(A)
- Tries
- Try
- B(A);CHECK
- Vars
- S(d);N_GUARD,P_SPINB(c),P_SPINS(d)::B(A),XS(d)
- Refutation
- S(d);P_SPINB(c),P_SPINS(d)
- Try
- B(A);
- Vars
- B(c);N_GUARD,P_SPINS(d)::B(A),XB(c)
- B(c);N_GUARD,P_SPINS(d)::B(A)
- S(d);N_GUARD,P_SPINB(c)::B(A)
- S(d);N_GUARD,P_SPINB(c)::B(A),XS(d)
- Refutation
- B(c);P_SPINS(d),XB(A)
- Try
- Actual
- B(A);
- Vars
- B(c);N_GUARD,S_CUTS(d),S_CUTS(d)::B(A)
- S(d);N_GUARD,S_CUTB(c)::B(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).