MESON Chess Problem Database
Problem Display
PID: 149261 (8/8/pQ1K4/8/k7/1p6/P1P5/1n2n3 w - - 0 1)
Dehler, Otto Georg Edgar
Wiener Schachzeitung, 1912
#2
4 + 5
| 15148 | Sadier Collection | 2013 |
SOLUTION
- SOUND
- Sets
- 1...Ka3
- 2.Qxb3#
- 1...Sa3
- 2.axb3#
- 2.cxb3#
- 1...a5
- 2.Qxb3#
- 1...Ka3
- Tries
- 1.Kc5?
- threat
- 2.Qb4#
- 2.Qxa6#
- 1...Ka3
- 2.Qxb3#
- 1...Sxc2
- 2.Qxa6#
- 1...a5
- 2.Qxb3#
- 1...Sd3+!
- threat
- 1.c3?
- threat
- 2.Qb4#
- 2.Qxa6#
- 1...Ka3
- 2.Qxb3#
- 1...bxa2
- 2.Qb4#
- 1...Sc2
- 2.Qxa6#
- 1...Sd3
- 2.Qxa6#
- 1...a5
- 2.Qxb3#
- 1...Sxc3!
- threat
- 1.Kc5?
- Keys
- 1.a3!
- threat
- 2.Qb4#
- 2.Qxa6#
- 1...Kxa3
- 2.Qxb3#
- 1...Sxa3
- 2.cxb3#
- 1...Sxc2
- 2.Qxa6#
- 1...bxc2
- 2.Qb4#
- 1...Sd3
- 2.Qxa6#
- 1...a5
- 2.Qxb3#
- threat
- 1.a3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- K(d);P-FLIGHT::QAR1(C),XP(c)
- P(e);SBLOCK::QAB1(C),XP(c)
- Tries
- Try
- K(D);S_FLIGHT
- Threat
- DUALS(2)
- Vars
- K(d);P-FLIGHT::QAR1(C),XP(c)
- S(b);XP(B)::QAR2(C),XP(e)
- P(e);SBLOCK::QAB1(C),XP(c)
- Refutation
- S(b);CHECK
- Try
- P(B);
- Threat
- DUALS(2)
- Vars
- K(d);P-FLIGHT::QAR1(C),XP(c)
- P(c);XP(A)::QAR1(C)
- S(b);::QAR2(C),XP(e)
- P(e);SBLOCK::QAB1(C),XP(c)
- Refutation
- S(a);XP(B)
- Try
- Actual
- P(A);
- Threat
- DUALS(2)
- Vars
- K(d);P-FLIGHT,XP(A)::QAR1(C),XP(c)
- S(a);SBLOCK,XP(A)::P(B),XP(c)
- S(b);XP(B)::QAR2(C),XP(e)
- P(c);XP(B)::QAR1(C)
- S(b);::QAR2(C),XP(e)
- P(e);SBLOCK::QAB1(C),XP(c)
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).