MESON Chess Problem Database
Problem Display
PID: 67818 (2bK4/8/1n1Qp1PR/Rq3kNp/2p2p2/1nBrbNPP/8/1B1r4 w - - 0 1)
Beck, Friedrich
2nd Prize, Chess, 1948
#2
11 + 12
| 81 | Chess | 1950 |
SOLUTION
- SOUND
- Sets
- 1...Bd4
- 2.Qxf4#
- 1...Bd7
- 2.Qf8#
- 1...Sd4
- 2.Qf8#
- 1...Sd5
- 2.Qe5#
- 1...Sd7
- 2.Qxe6#
- 1...h4
- 2.g4#
- 1...Bd4
- Tries
- 1.Bxd3+?
- 1...cxd3
- 2.Qf8#
- 1...Rxd3!
- 1...cxd3
- 1.Bd4?
- threat
- 2.Qf8#
- 1...Bxd4
- 2.Qxf4#
- 1...Sd5
- 2.Qe5#
- 1...Sd7
- 2.Qxe6#
- 1...Qd5!
- threat
- 1.Bxd3+?
- Keys
- 1.g7!
- threat
- 2.Rf6#
- 1...Qe5
- 2.Rxe5#
- 1...Bd4
- 2.Qxf4#
- 1...Sd4
- 2.Qf8#
- 1...Sd5
- 2.Qe5#
- 1...Sd7
- 2.Qxe6#
- threat
- 1.g7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 2
- Sets
- B(d);N_PINQ(H)::QAR1(H),XP(f)
- B(l);N_PINQ(H)::QAR(H)
- S(b);N_PINQ(H)::QAR(H)
- S(j);N_PINQ(H),N_SPINQ(g)::QAR1(H)
- S(j);N_PINQ(H)::QAB1(H),XP(k)
- P(i);N_GUARD::P(D)
- Tries
- Try
- B(A);CHECK,N_SPINQ(H),XR(c)
- Vars
- P(e);XB(A)::QAR(H)
- Refutation
- R(a);P_PINQ(H),XB(A)
- Try
- B(B);N_SPINQ(H)
- Threat
- QAR(H)
- Vars
- B(d);N_GUARD,XB(B)::QAR1(H),XP(f)
- S(j);N_SPINQ(g),S_CUTQ(g)::QAR1(H)
- S(j);S_CUTB(l)::QAB1(H),XP(k)
- Refutation
- Q(g);P_PINQ(H)
- Try
- Actual
- P(I);
- Threat
- R1(J)
- Vars
- Q(g);OGATE::R1(F),XQ(g)
- B(d);N_PINQ(H)::QAR1(H),XP(f)
- S(b);N_PINQ(H)::QAR(H)
- S(j);N_PINQ(H),N_SPINQ(g)::QAR1(H)
- S(j);N_PINQ(H)::QAB1(H),XP(k)
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).