MESON Chess Problem Database
Problem Display
PID: 198386 (n2K4/2p1B3/8/r1QNbkpB/8/8/4R3/8 w - - 0 1)
Betts, Frederick Charles
Brisbane Courier, 1920
#2
6 + 6
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Ba1
- 2.Qf2#
- 2.Qc2#
- 1...Bb2
- 2.Qf2#
- 2.Qc2#
- 1...Bh2
- 2.Qc2#
- 1...Bc3
- 2.Qf2#
- 1...Bg3
- 2.Qc2#
- 1...Bd4
- 2.Qc2#
- 1...Bf4
- 2.Qc2#
- 1...Bd6
- 2.Qc2#
- 1...Bf6
- 2.Qf2#
- 2.Qc2#
- 1...Bg7
- 2.Qf2#
- 2.Qc2#
- 1...Bh8
- 2.Qf2#
- 2.Qc2#
- 1...Ba1
- Tries
- 1.Bf6?
- threat
- 2.Rxe5#
- 1...Ke6
- 2.Rxe5#
- 1...Ba1
- 2.Qf2#
- 2.Qc2#
- 1...Bb2
- 2.Qf2#
- 2.Qc2#
- 1...Bh2
- 2.Qc2#
- 1...Bc3
- 2.Qf2#
- 1...Bg3
- 2.Qc2#
- 1...Bd4
- 2.Qc2#
- 1...Bf4
- 2.Qc2#
- 1...Bd6
- 2.Qc2#
- 1...Bxf6+!
- threat
- 1.Rf2+?
- 1...Ke4
- 2.Bg6#
- 1...Ke6
- 2.Bg4#
- 2.Bf7#
- 1...Bf4!
- 1...Ke4
- 1.Qf2+?
- 1...Ke6
- 2.Bf7#
- 2.Qf7#
- 1...Bf4!
- 1...Ke6
- 1.Qe3?
- threat
- 2.Qxe5#
- 1...Ke6
- 2.Qxe5#
- 1...Ba1
- 2.Rf2#
- 2.Qf2#
- 2.Qxg5#
- 2.Qd3#
- 2.Qf3#
- 2.Qe4#
- 2.Qe6#
- 1...Bb2
- 2.Rf2#
- 2.Qf2#
- 2.Qxg5#
- 2.Qd3#
- 2.Qf3#
- 2.Qe4#
- 2.Qe6#
- 1...Bh2
- 2.Qxg5#
- 2.Qd3#
- 2.Qe4#
- 2.Qe6#
- 1...Bc3
- 2.Rf2#
- 2.Qf2#
- 2.Qxg5#
- 2.Qd3#
- 2.Qf3#
- 2.Qe4#
- 2.Qe6#
- 1...Bg3
- 2.Qxg5#
- 2.Qd3#
- 2.Qe4#
- 2.Qe6#
- 1...Bd4
- 2.Rf2#
- 2.Qxg5#
- 2.Qd3#
- 2.Qf3#
- 2.Qe4#
- 2.Qe6#
- 1...Bf4
- 2.Qd3#
- 2.Qe4#
- 2.Qe6#
- 1...Bd6
- 2.Qxg5#
- 2.Qd3#
- 2.Qe4#
- 2.Qe6#
- 1...Bf6
- 2.Rf2#
- 2.Qf2#
- 2.Qd3#
- 2.Qf3#
- 2.Qe4#
- 2.Qe6#
- 1...Bg7
- 2.Rf2#
- 2.Qf2#
- 2.Qxg5#
- 2.Qd3#
- 2.Qf3#
- 2.Qe4#
- 2.Qe6#
- 1...Bh8
- 2.Rf2#
- 2.Qf2#
- 2.Qxg5#
- 2.Qd3#
- 2.Qf3#
- 2.Qe4#
- 2.Qe6#
- 1...Rxd5+!
- threat
- 1.Bf6?
- Keys
- 1.Bd6!
- threat
- 2.Rxe5#
- 1...Bf6+
- 2.Se7#
- 1...Ke6
- 2.Rxe5#
- 1...Bxd6
- 2.Qc2#
- 1...cxd6
- 2.Qc8#
- 1...Ba1
- 2.Qf2#
- 2.Qc2#
- 1...Bb2
- 2.Qf2#
- 2.Qc2#
- 1...Bh2
- 2.Qc2#
- 1...Bc3
- 2.Qf2#
- 1...Bg3
- 2.Qc2#
- 1...Bd4
- 2.Qc2#
- 1...Bf4
- 2.Qc2#
- 1...Bg7
- 2.Qf2#
- 2.Qc2#
- 1...Bh8
- 2.Qf2#
- 2.Qc2#
- threat
- 1.Bd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- B(b);::QAB(B)
- B(b);N_GUARD::QAR(B)
- Tries
- Try
- B(E);
- Threat
- R1(A),XB(b)
- Vars
- K(c);P_SPINB(b),S_FLIGHT::R1(A),XB(b)
- B(b);::QAB(B)
- B(b);N_GUARD::QAR(B)
- Refutation
- B(b);CHECK,XB(E)
- Try
- R(A);CHECK
- Vars
- K(c);S_FLIGHT::B(D)
- Refutation
- B(b);P_SPINB(b)
- Try
- Q(B);CHECK
- Refutation
- B(b);P_SPINB(b)
- Try
- Q(B);
- Threat
- QAR1(B),XB(b)
- Vars
- K(c);P_SPINB(b),S_FLIGHT::QAR1(B),XB(b)
- Refutation
- R(a);CHECK,XS(C)
- Try
- Actual
- B(E);
- Threat
- R1(A),XB(b)
- Vars
- B(b);CHECK,SBLOCK::QAR(B)+S(C),DCHECK
- K(c);P_SPINB(b),S_FLIGHT::R1(A),XB(b)
- B(b);XB(E)::QAB(B)
- P(e);OGATE,XB(E)::QAB(B)
- B(b);::QAB(B)
- B(b);N_GUARD::QAR(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).