MESON Chess Problem Database
Problem Display
PID: 11553 (3B2K1/8/5Nkp/1Rbp4/8/8/8/5Q2 w - - 0 1)
Lange, Hans Franz
1st Prize, Die Schwalbe, 1939
#2
5 + 4
| 3098 | FIDE Album (1914-1944) (I) | 1971 |
| 3310 | 2345 Chess Problems | 1997 |
SOLUTION
- SOUND
- Tries
- 1.Se4?
- threat
- 2.Qf7#
- 1...Kh5
- 2.Qf5#
- 1...h5
- 2.Qf6#
- 1...Bf2!
- threat
- 1.Sh7?
- threat
- 2.Qf7#
- 1...Kh5
- 2.Qf5#
- 1...h5
- 2.Qf6#
- 1...Bf2!
- threat
- 1.Qh3?
- threat
- 2.Qg4#
- 2.Qh5#
- 1...Kg5
- 2.Qg4#
- 1...h5
- 2.Qxh5#
- 1...Be3
- 2.Qh5#
- 1...Be7!
- threat
- 1.Qf3?
- threat
- 2.Qg4#
- 2.Qh5#
- 1...Kg5
- 2.Qg4#
- 1...h5
- 2.Qxh5#
- 1...Be3
- 2.Qh5#
- 1...Be7!
- threat
- 1.Se4?
- Keys
- 1.Sxd5!
- threat
- 2.Qf7#
- 1...Kh5
- 2.Qf5#
- 1...Bf2
- 2.Sf4#
- 1...Be7
- 2.Sxe7#
- 1...h5
- 2.Qf6#
- threat
- 1.Sxd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- Tries
- Try
- S(C);
- Threat
- QAB1(A)
- Vars
- K(c);S_FLIGHT::QAR2(A)
- P(d);SBLOCK::QAR1(A)
- Refutation
- B(a);
- Try
- S(C);
- Threat
- QAB1(A)
- Vars
- K(c);S_FLIGHT::QAR2(A)
- P(d);SBLOCK::QAR1(A)
- Refutation
- B(a);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- K(c);P-FLIGHT::QAR1(A)
- P(d);::QAB1(A),XP(d)
- B(a);::QAB1(A)
- Refutation
- B(a);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- K(c);P-FLIGHT::QAR1(A)
- P(d);::QAB1(A),XP(d)
- B(a);::QAB1(A)
- Refutation
- B(a);
- Try
- Actual
- S(C);XP(b)
- Threat
- QAB1(A)
- Vars
- K(c);S_FLIGHT::QAR2(A)
- B(a);::S(C)
- B(a);N_GUARD::S(C),XB(a)
- P(d);SBLOCK::QAR1(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).