MESON Chess Problem Database
Problem Display
PID: 157163 (8/8/3Q4/8/8/RP6/1k6/1nR1K3 w - - 0 1)
Haring, Jacobus
Sjakk-Nytt, 1947
#2
5 + 2
| 15148 | Sadier Collection | 2016 |
SOLUTION
- SOUND
- Tries
- 1.Ra4?
- 1...Kxb3
- 2.Qb4#
- 1...Sa3
- 2.Qxa3#
- 1...Sd2
- 2.Qa3#
- 1...Sc3
- 2.Qa3#
- 1...Kxc1!
- 1...Kxb3
- 1.Ra5?
- 1...Kxb3
- 2.Qb8#
- 2.Qb6#
- 1...Sa3
- 2.Qxa3#
- 1...Sd2
- 2.Qa3#
- 1...Sc3
- 2.Qa3#
- 1...Kxc1!
- 1...Kxb3
- 1.Ra6?
- 1...Kxb3
- 2.Qb8#
- 2.Qb6#
- 1...Sa3
- 2.Qxa3#
- 1...Sd2
- 2.Qa3#
- 1...Sc3
- 2.Qa3#
- 1...Kxc1!
- 1...Kxb3
- 1.Ra7?
- 1...Kxb3
- 2.Qb8#
- 2.Qb6#
- 1...Sa3
- 2.Qxa3#
- 1...Sd2
- 2.Qa3#
- 1...Sc3
- 2.Qa3#
- 1...Kxc1!
- 1...Kxb3
- 1.Ra8?
- 1...Kxb3
- 2.Qb8#
- 2.Qb6#
- 1...Sa3
- 2.Qxa3#
- 1...Sd2
- 2.Qa3#
- 1...Sc3
- 2.Qa3#
- 1...Kxc1!
- 1...Kxb3
- 1.Ra4?
- Keys
- 1.Ra1!
- 1...Kxa1
- 2.Qa3#
- 1...Kxc1
- 2.Qd2#
- 1...Kxb3
- 2.Qb8#
- 2.Qb6#
- 1...Sd2
- 2.Qa3#
- 1...Sa3
- 2.Qxa3#
- 1...Sc3
- 2.Qa3#
- 1...Kxa1
- 1.Ra1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- Tries
- Try
- R(C);
- Vars
- K(b);OGATEB,P-FLIGHT,XP(D)::QAR1(E)
- S(a);N_GUARD::QAB1(E),XS(a)
- S(a);N_GUARD::QAB1(E)
- Refutation
- K(b);S_FLIGHT,XR(A)
- Try
- R(C);
- Vars
- S(a);N_GUARD::QAB1(E),XS(a)
- S(a);N_GUARD::QAB1(E)
- Refutation
- K(b);S_FLIGHT,XR(A)
- Try
- R(C);
- Vars
- S(a);N_GUARD::QAB1(E),XS(a)
- S(a);N_GUARD::QAB1(E)
- Refutation
- K(b);S_FLIGHT,XR(A)
- Try
- R(C);
- Vars
- S(a);N_GUARD::QAB1(E),XS(a)
- S(a);N_GUARD::QAB1(E)
- Refutation
- K(b);S_FLIGHT,XR(A)
- Try
- R(C);
- Vars
- S(a);N_GUARD::QAB1(E),XS(a)
- S(a);N_GUARD::QAB1(E)
- Refutation
- K(b);S_FLIGHT,XR(A)
- Try
- Actual
- R(C);
- Vars
- K(b);P_SPINS(a),S_FLIGHT,XR(C)::QAR2(E)
- K(b);P_SPINS(a),S_FLIGHT,XR(A)::QAB1(E)
- S(a);N_GUARD::QAB1(E)
- S(a);N_GUARD::QAB1(E),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).