MESON Chess Problem Database
Problem Display
PID: 97937 (2N5/p3R3/2k5/1Rr4q/pQ6/K1p5/8/8 w - - 0 1)
Hermanson, Halvar
Problem (Zagreb), 1951
#2
5 + 6
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Kd5
- 2.Rxc5#
- 2.Qxc5#
- 2.Qe4#
- 1...Qd1
- 2.Rxc5#
- 2.Qxc5#
- 1...Qe2
- 2.Rxc5#
- 2.Qxc5#
- 1...Qf3
- 2.Rxc5#
- 2.Qxc5#
- 1...Qg4
- 2.Rxc5#
- 2.Qxc5#
- 1...Qg6
- 2.Rxc5#
- 2.Qxc5#
- 1...Qf7
- 2.Rxc5#
- 2.Qxc5#
- 1...Qe8
- 2.Rxc5#
- 2.Qxc5#
- 1...Qh1
- 2.Rxc5#
- 2.Qxc5#
- 1...Qh2
- 2.Rxc5#
- 2.Qxc5#
- 1...Qh3
- 2.Rxc5#
- 2.Qxc5#
- 1...Qh4
- 2.Rxc5#
- 2.Qxc5#
- 1...Qh6
- 2.Rxc5#
- 2.Qxc5#
- 1...Qh7
- 2.Rxc5#
- 2.Qxc5#
- 1...Qh8
- 2.Rxc5#
- 2.Qxc5#
- 1...Rc4
- 2.Sxa7#
- 1...Rxb5
- 2.Qd6#
- 1...Rd5
- 2.Sxa7#
- 1...Re5
- 2.Sxa7#
- 1...Rf5
- 2.Sxa7#
- 1...Rg5
- 2.Sxa7#
- 1...Kd5
- Tries
- 1.Sxa7+?
- 1...Kd5
- 2.Qxc5#
- 1...Kd6!
- 1...Kd5
- 1.Ra5?
- threat
- 2.Qb7#
- 1...Kd5
- 2.Rxc5#
- 2.Qxc5#
- 2.Qe4#
- 1...Rb5
- 2.Qd6#
- 1...Rxa5!
- threat
- 1.Rb6+?
- 1...Kd5
- 2.Rd6#
- 2.Qe4#
- 1...axb6!
- 1...Kd5
- 1.Sxa7+?
- Keys
- 1.Rb8!
- threat
- 2.Qb7#
- 1...Kd5
- 2.Qe4#
- 1...Rc4
- 2.Qd6#
- 1...Ra5
- 2.Qd6#
- 1...Rb5
- 2.Qd6#
- 1...Rd5
- 2.Sxa7#
- 1...Re5
- 2.Qd6#
- 1...Rf5
- 2.Qd6#
- 1...Rg5
- 2.Qd6#
- threat
- 1.Rb8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 4
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(c);::S(E),XP(f)
- R(c);OGATE,SBLOCK,XR(C)::QAR1(B)
- Tries
- Try
- S(E);CHECK,XP(f)
- Vars
- K(e);P_SPINR(c),S_FLIGHT::QAR1(B),XR(c)
- Refutation
- K(e);P-FLIGHT,P_SPINR(c)
- Try
- R(C);
- Threat
- QAB1(B)
- Vars
- R(c);OGATE::QAR1(B)
- Refutation
- R(c);XR(C)
- Try
- R(C);CHECK
- Refutation
- P(f);XR(C)
- Try
- Actual
- R(C);
- Threat
- QAB1(B)
- Vars
- K(e);S_FLIGHT::QAB1(B)
- R(c);OGATE::QAR1(B)
- R(c);SBLOCK::S(E),XP(f)
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).