MESON Chess Problem Database
Problem Display
PID: 139261 (2n5/BQ4n1/2PrR1P1/3k1N2/8/2KPpP1r/8/5b2 w - - 0 1)
Ahues, Herbert Siegfried Oskar
British Chess Magazine, 1964
#2
9 + 7
| 23 | Die Schwalbe | 1966 |
SOLUTION
- SOUND
- Sets
- 1...Rxc6+
- 2.Qxc6#
- 1...Rxe6
- 2.Qb5#
- 1...Rd7
- 2.Qb3#
- 1...Rd8
- 2.Qb3#
- 1...Rxc6+
- Tries
- 1.d4?
- threat
- 2.Re5#
- 1...Rxc6+
- 2.Qxc6#
- 1...Kxe6
- 2.Qf7#
- 1...Sxe6
- 2.Sxe3#
- 1...Rxe6!
- threat
- 1.f4?
- threat
- 2.Re5#
- 1...Rxc6+
- 2.Qxc6#
- 1...Kxe6
- 2.Qf7#
- 1...Rxe6
- 2.Qb5#
- 1...Sxe6!
- threat
- 1.c7+?
- 1...Rc6+
- 2.Qxc6#
- 1...Kxe6!
- 1...Rc6+
- 1.d4?
- Keys
- 1.Bd4!
- threat
- 2.Re5#
- 1...Rxc6+
- 2.Qxc6#
- 1...Kxe6
- 2.Qf7#
- 1...Rxe6
- 2.Qb5#
- 1...Sxe6
- 2.Sxe3#
- threat
- 1.Bd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- R(e);CHECK,OGATE,P_SPINR(e),XP(E)::QAB1(I),XR(e)
- R(e);SBLOCK,XR(F)::QAR2(I)
- R(e);::QAB(I)
- Tries
- Try
- P(B);
- Threat
- R1(F)
- Vars
- R(e);CHECK,OGATE,P_SPINR(e),XP(E)::QAB1(I),XR(e)
- K(d);OGATEB,S_FLIGHT,XR(F)::QAB1(I)
- S(f);SBLOCK,XR(F)::S(D),XP(b)
- Refutation
- R(e);XR(F)
- Try
- P(C);
- Threat
- R1(F)
- Vars
- R(e);CHECK,OGATE,P_SPINR(e),XP(E)::QAB1(I),XR(e)
- K(d);OGATEB,S_FLIGHT,XR(F)::QAB1(I)
- R(e);SBLOCK,XR(F)::QAR2(I)
- Refutation
- S(f);XR(F)
- Try
- P(E);CHECK
- Vars
- R(e);CHECK,N_GUARD,P_SPINR(e)::QAB1(I),XR(e)
- Refutation
- K(d);S_FLIGHT,XR(F)
- Try
- Actual
- B(H);
- Threat
- R1(F)
- Vars
- R(e);CHECK,OGATE,P_SPINR(e),XP(E)::QAB1(I),XR(e)
- K(d);OGATEB,S_FLIGHT,XR(F)::QAB1(I)
- R(e);SBLOCK,XR(F)::QAR2(I)
- S(f);SBLOCK,XR(F)::S(D),XP(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).