MESON Chess Problem Database
Problem Display
PID: 93274 (8/5R1K/3bk3/3R4/2P5/1Q6/8/8 w - - 0 1)
Buhelt, Alfred Valdemar Knudsen
Skakbladet, 1960-1961
#2
5 + 2
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Tries
- 1.Qc2?
- threat
- 2.Qf5#
- 2.Qg6#
- 1...Be5
- 2.Qf5#
- 1...Be7
- 2.Qf5#
- 1...Kxf7!
- threat
- 1.Qb1?
- threat
- 2.Qf5#
- 2.Qg6#
- 1...Be5
- 2.Qf5#
- 1...Be7
- 2.Qf5#
- 1...Kxf7!
- threat
- 1.Qd3?
- threat
- 2.Qf5#
- 2.Qg6#
- 1...Be5
- 2.Qf5#
- 1...Be7
- 2.Qf5#
- 1...Kxf7!
- threat
- 1.Qe3+?
- 1...Kxf7
- 2.Rf5#
- 1...Be5!
- 1...Kxf7
- 1.Qf3?
- threat
- 2.Qf5#
- 2.Qf6#
- 1...Be5
- 2.Qf5#
- 1...Be7
- 2.Qf5#
- 1...Bf4!
- threat
- 1.Qb7?
- threat
- 2.Qd7#
- 1...Be7
- 2.Qxe7#
- 1...Bc7!
- threat
- 1.Qc2?
- Keys
- 1.Re5+!
- 1...Kxe5
- 2.Qe3#
- 1...Kxf7
- 2.Qf3#
- 1...Bxe5
- 2.c5#
- 1...Kxe5
- 1.Re5+!
FEATURES
- Static
- TYPE = CHECKING_KEY
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- Tries
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- B(a);::QAB1(A)
- Refutation
- K(b);S_FLIGHT,XR(D)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- B(a);::QAB1(A)
- Refutation
- K(b);S_FLIGHT,XR(D)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- B(a);::QAB1(A)
- Refutation
- K(b);S_FLIGHT,XR(D)
- Try
- Q(A);CHECK
- Vars
- K(b);S_FLIGHT,XR(D)::R(C)
- Refutation
- B(a);P_SPINB(a)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- B(a);::QAB1(A)
- Refutation
- B(a);
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- B(a);N_GUARD::QAR1(A),XB(a)
- Refutation
- B(a);
- Try
- Actual
- R(C);CHECK
- Vars
- K(b);P-FLIGHT,XR(C)::QAR2(A)
- K(b);S_FLIGHT,XR(D)::QAR(A)
- B(a);SBLOCK,XR(C)::QAB(A)+P(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).