MESON Chess Problem Database
Problem Display
PID: 137334 (1nB4n/3q4/3R4/1R2rkpp/K7/7P/p2N1p1B/rbQ5 w - - 0 1)
Fegan, Bertram George
Australasian Chess Magazine, 1920
#2
8 + 11
SOLUTION
- SOUND
- Sets
- 1...Qxc8
- 2.Rxe5#
- 1...Rc5
- 2.Qxc5#
- 1...Bc2+
- 2.Qxc2#
- 1...Sa6
- 2.Bxd7#
- 1...Sc6
- 2.Bxd7#
- 1...f1Q
- 2.Qxf1#
- 1...f1S
- 2.Qxf1#
- 1...f1B
- 2.Qxf1#
- 1...f1R
- 2.Qxf1#
- 1...Qxc8
- Tries
- 1.Bxe5?
- threat
- 2.Bh2#
- 2.Bg3#
- 2.Rf6#
- 1...Bc2+
- 2.Qxc2#
- 1...Qxc8
- 2.Rf6#
- 1...g4
- 2.Bh2#
- 2.Bg3#
- 1...f1Q
- 2.Rf6#
- 2.Qxf1#
- 1...f1B
- 2.Rf6#
- 2.Qxf1#
- 1...Bd3
- 2.Rf6#
- 1...Be4
- 2.Rf6#
- 1...Sa6
- 2.Bxd7#
- 2.Rf6#
- 1...Sc6
- 2.Bxd7#
- 2.Rf6#
- 1...Sg6
- 2.Rf6#
- 1...Sf7
- 2.Rf6#
- 1...Qe6!
- threat
- 1.Qc6?
- threat
- 2.Rxe5#
- 2.Rf6#
- 2.Qf3#
- 1...Bc2+
- 2.Qxc2#
- 1...Rxb5
- 2.Rf6#
- 2.Qf3#
- 2.Qxb5#
- 1...Sxc6
- 2.Bxd7#
- 1...g4
- 2.Rxe5#
- 1...f1Q
- 2.Rxe5#
- 2.Rf6#
- 1...f1R
- 2.Rxe5#
- 2.Rf6#
- 1...Sg6
- 2.Rf6#
- 1...Rc5
- 2.Rxc5#
- 2.Rf6#
- 2.Qf3#
- 2.Qxc5#
- 1...Rd5
- 2.Rbxd5#
- 2.Rdxd5#
- 2.Rf6#
- 2.Qxd5#
- 1...Be4
- 2.Rxe5#
- 2.Rf6#
- 2.Qxe4#
- 1...Sf7
- 2.Rf6#
- 2.Qf3#
- 1...Qe6!
- threat
- 1.Bxe5?
- Keys
- 1.Qc4!
- 1...Bc2+
- 2.Qxc2#
- 1...Qxc8
- 2.Rxe5#
- 1...Rxb5
- 2.Qxb5#
- 1...Qe6
- 2.Qxe6#
- 1...g4
- 2.Qf4#
- 1...f1Q
- 2.Qxf1#
- 1...f1S
- 2.Qxf1#
- 1...f1B
- 2.Qxf1#
- 1...f1R
- 2.Qxf1#
- 1...Sg6
- 2.Qf7#
- 1...Rc5
- 2.Qxc5#
- 1...Rd5
- 2.Qxd5#
- 1...Bd3
- 2.Qxd3#
- 1...Be4
- 2.Qxe4#
- 1...Sa6
- 2.Bxd7#
- 1...Sc6
- 2.Bxd7#
- 1...Sf7
- 2.Qxf7#
- 1...h4
- 2.Qg4#
- 1...Bc2+
- 1.Qc4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 0
- Sets
- Q(i);N_PINR(F),N_SPINQ(i),XB(H)::R1(F),XR(e)
- R(e);OGATEB::QAR(A),XR(e)
- B(b);CHECK,N_GUARD::QAB(A),XB(b)
- S(j);N_GUARD::B(H),XQ(i)
- S(j);N_GUARD,N_PINR(F)::B(H),XQ(i)
- P(d);OGATEB::QAR(A),XQ(d)
- P(d);OGATEB::QAR(A),XS(d)
- P(d);OGATEB::QAR(A),XB(d)
- P(d);OGATEB::QAR(A),XR(d)
- Tries
- Try
- B(C);XR(e)
- Threat
- DUALS(3)
- Vars
- B(b);CHECK,N_GUARD::QAB(A),XB(b)
- Q(i);N_PINR(F),N_SPINQ(i),XB(H)::R1(G)
- B(b);::R1(G)
- S(k);::R1(G)
- Refutation
- Q(i);N_PINR(F)
- Try
- Q(A);N_SPINR(F)
- Threat
- DUALS(3)
- Vars
- B(b);CHECK,N_GUARD::QAB(A),XB(b)
- S(j);N_GUARD,XQ(A)::B(H),XQ(i)
- P(g);::R1(F),XR(e)
- S(k);::R1(G)
- Refutation
- Q(i);
- Try
- Actual
- Q(A);
- Vars
- B(b);CHECK,N_GUARD::QAB(A),XB(b)
- Q(i);N_PINR(F),N_SPINQ(i),XB(H)::R1(F),XR(e)
- R(e);N_SPINR(e),OGATE,XR(F)::QAR(A),XR(e)
- Q(i);N_GUARD,N_PINR(F)::QAB1(A),XQ(i)
- P(g);N_GUARD::QAR1(A)
- P(d);OGATEB::QAR(A),XQ(d)
- P(d);OGATEB::QAR(A),XS(d)
- P(d);OGATEB::QAR(A),XB(d)
- P(d);OGATEB::QAR(A),XR(d)
- S(k);N_GUARD::QAR2(A)
- R(e);OGATEB::QAR(A),XR(e)
- R(e);OGATEB::QAR2(A),XR(e)
- B(b);N_GUARD::QAB(A),XB(b)
- B(b);N_GUARD::QAB1(A),XB(b)
- S(j);N_GUARD::B(H),XQ(i)
- S(j);N_GUARD,N_PINR(F)::B(H),XQ(i)
- S(k);N_GUARD::QAR2(A),XS(k)
- P(h);N_GUARD::QAB1(A)
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).