MESON Chess Problem Database
Problem Display
PID: 157245 (8/rb6/8/8/8/8/pR4Q1/k5K1 w - - 0 1)
Speckmann, Werner
Die Schwalbe, 1938
#2
3 + 4
| 15148 | Sadier Collection | 2016 |
SOLUTION
- SOUND
- Tries
- 1.Rxa2+?
- 1...Kb1
- 2.Qb2#
- 2.Qc2#
- 1...Rxa2!
- 1...Kb1
- 1.Rb3?
- threat
- 2.Qf1#
- 2.Qb2#
- 2.Qg7#
- 1...Ra4
- 2.Qf1#
- 2.Qb2#
- 1...Ra5
- 2.Qf1#
- 2.Qb2#
- 1...Ra6
- 2.Qf1#
- 2.Qb2#
- 1...Bf3
- 2.Qb2#
- 1...Be4
- 2.Qb2#
- 1...Bd5
- 2.Qf1#
- 2.Qb2#
- 1...Ba6
- 2.Qb2#
- 1...Bc6
- 2.Qf1#
- 2.Qb2#
- 1...Ba8
- 2.Qf1#
- 2.Qb2#
- 1...Bc8
- 2.Qf1#
- 2.Qb2#
- 1...Bxg2!
- threat
- 1.Rb4?
- threat
- 2.Qf1#
- 2.Qb2#
- 2.Qg7#
- 1...Ra3
- 2.Qf1#
- 2.Qb2#
- 1...Ra5
- 2.Qf1#
- 2.Qb2#
- 1...Ra6
- 2.Qf1#
- 2.Qb2#
- 1...Bf3
- 2.Qb2#
- 1...Be4
- 2.Qb2#
- 1...Bd5
- 2.Qf1#
- 2.Qb2#
- 1...Ba6
- 2.Qb2#
- 1...Bc6
- 2.Qf1#
- 2.Qb2#
- 1...Ba8
- 2.Qf1#
- 2.Qb2#
- 1...Bc8
- 2.Qf1#
- 2.Qb2#
- 1...Bxg2!
- threat
- 1.Rb5?
- threat
- 2.Qf1#
- 2.Qb2#
- 2.Qg7#
- 1...Ra3
- 2.Qf1#
- 2.Qb2#
- 1...Ra4
- 2.Qf1#
- 2.Qb2#
- 1...Ra6
- 2.Qf1#
- 2.Qb2#
- 1...Bf3
- 2.Qb2#
- 1...Be4
- 2.Qb2#
- 1...Bd5
- 2.Qf1#
- 2.Qb2#
- 1...Ba6
- 2.Qf1#
- 2.Qb2#
- 1...Bc6
- 2.Qf1#
- 2.Qb2#
- 1...Ba8
- 2.Qf1#
- 2.Qb2#
- 1...Bc8
- 2.Qf1#
- 2.Qb2#
- 1...Bxg2!
- threat
- 1.Rb6?
- threat
- 2.Qf1#
- 2.Qb2#
- 2.Qg7#
- 1...Ra3
- 2.Qf1#
- 2.Qb2#
- 1...Ra4
- 2.Qf1#
- 2.Qb2#
- 1...Ra5
- 2.Qf1#
- 2.Qb2#
- 1...Bf3
- 2.Qb2#
- 1...Be4
- 2.Qb2#
- 1...Bd5
- 2.Qf1#
- 2.Qb2#
- 1...Ba6
- 2.Qb2#
- 1...Bc6
- 2.Qf1#
- 2.Qb2#
- 1...Ba8
- 2.Qf1#
- 2.Qb2#
- 1...Bc8
- 2.Qf1#
- 2.Qb2#
- 1...Bxg2!
- threat
- 1.Rxb7?
- threat
- 2.Qf1#
- 2.Qb2#
- 2.Qg7#
- 1...Ra3
- 2.Qf1#
- 2.Qb2#
- 1...Ra4
- 2.Qf1#
- 2.Qb2#
- 1...Ra5
- 2.Qf1#
- 2.Qb2#
- 1...Ra6
- 2.Qf1#
- 2.Qb2#
- 1...Rxb7!
- threat
- 1.Rxa2+?
- Keys
- 1.Qg7!
- threat
- 2.Rb3#
- 2.Rb4#
- 2.Rb5#
- 2.Rb6#
- 2.Rxb7#
- 1...Ra3
- 2.Rb3#
- 1...Ra4
- 2.Rb4#
- 1...Ra5
- 2.Rb5#
- 1...Ra6
- 2.Rb6#
- 1...Bh1
- 2.Rb7#
- 1...Bg2
- 2.Rb7#
- 1...Bf3
- 2.Rb7#
- 1...Be4
- 2.Rb7#
- 1...Bd5
- 2.Rb7#
- 1...Ba6
- 2.Rb7#
- 1...Bc6
- 2.Rb7#
- 1...Ba8
- 2.Rb7#
- 1...Bc8
- 2.Rb7#
- threat
- 1.Qg7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 13
- REMOVED MATES = 0
- Sets
- Tries
- Try
- R(B);CHECK,XP(b)
- Refutation
- R(c);XR(B)
- Try
- R(B);
- Threat
- DUALS(3)
- Vars
- B(d);::QAB1(C)
- Refutation
- B(d);XQ(C)
- Try
- R(B);
- Threat
- DUALS(3)
- Vars
- B(d);::QAB1(C)
- Refutation
- B(d);XQ(C)
- Try
- R(B);
- Threat
- DUALS(3)
- Vars
- B(d);::QAB1(C)
- Refutation
- B(d);XQ(C)
- Try
- R(B);
- Threat
- DUALS(3)
- Vars
- B(d);::QAB1(C)
- Refutation
- B(d);XQ(C)
- Try
- R(B);XB(d)
- Threat
- DUALS(3)
- Refutation
- R(c);XR(B)
- Try
- Actual
- Q(C);
- Threat
- DUALS(5)
- Vars
- R(c);::QAB(C)+R(B)
- B(d);::QAB(C)+R(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).