MESON Chess Problem Database
Problem Display
PID: 150695 (8/3pr3/5b2/Q7/1P4P1/3KP1R1/1NN2P1R/2B2k2 w - - 0 1)
Ahlheim, Karl-Heinz
Probleemblad, 1984
#2
11 + 4
| 15148 | Sadier Collection | 2014 |
SOLUTION
- SOUND
- Tries
- 1.Sd1?
- threat
- 2.Rh1#
- 1...Rxe3+
- 2.Sdxe3#
- 1...Rh7!
- threat
- 1.Sc4?
- threat
- 2.Sd2#
- 1...Rxe3+
- 2.S4xe3#
- 1...Bc3!
- threat
- 1.Bd2?
- threat
- 2.Qa1#
- 1...Rxe3+
- 2.Sxe3#
- 1...Bxb2!
- threat
- 1.Qb5?
- threat
- 2.Kd2#
- 1...Rxe3+
- 2.Kxe3#
- 1...Re4
- 2.Kxe4#
- 1...Bc3
- 2.Kxc3#
- 1...Re5!
- threat
- 1.Qf5?
- threat
- 2.Rh1#
- 1...Rxe3+
- 2.fxe3#
- 1...Rh7!
- threat
- 1.b5?
- threat
- 2.Qe1#
- 1...Rxe3+
- 2.Sxe3#
- 1...Bc3!
- threat
- 1.Sd1?
- Keys
- 1.Qa1!
- threat
- 2.Bd2#
- 1...Rxe3+
- 2.Bxe3#
- 1...Bxb2
- 2.Bxb2#
- threat
- 1.Qa1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- Tries
- Try
- S(B);
- Threat
- R(E)
- Vars
- R(d);CHECK,XP(G)::S(B),XR(d)
- Refutation
- R(d);
- Try
- S(B);
- Threat
- S(B)
- Vars
- R(d);CHECK,XP(G)::S(B),XR(d)
- Refutation
- B(b);
- Try
- B(A);
- Threat
- QAR(K)
- Vars
- R(d);CHECK,XP(G)::S(C),XR(d)
- Refutation
- B(b);XS(B)
- Try
- Q(K);
- Threat
- QAB(K)+K(F)
- Vars
- R(d);CHECK,XP(G)::QAB(K)+K(F),XR(d)
- R(d);::QAB(K)+K(F),XR(d)
- B(b);::QAB(K)+K(F),XB(b)
- Refutation
- R(d);
- Try
- Q(K);
- Threat
- R(E)
- Vars
- R(d);CHECK,OGATE,XP(G)::QAR(K)+P(D),XR(d)
- Refutation
- R(d);
- Try
- P(I);
- Threat
- QAR1(K)
- Vars
- R(d);CHECK,XP(G)::S(C),XR(d)
- Refutation
- B(b);
- Try
- Actual
- Q(K);
- Threat
- QAR(K)+B(A)
- Vars
- R(d);CHECK,OGATE,XP(G)::QAR(K)+B(A),XR(d)
- B(b);OGATE,XS(B)::QAR(K)+B(A),XB(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).