MESON Chess Problem Database
Problem Display
PID: 227918 (bb2N3/p2B1p2/R3p3/2pkp2n/2p1p3/Q2pK3/8/8 w - - 0 1)
Fothergill, Percival Guy Laugham (PGLF)
Brisbane Courier, 1926
#2
5 + 12
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bc6
- 2.Bxc6#
- 1...Bd6
- 2.Rxd6#
- 1...Bc7
- 2.Sxc7#
- 1...Sg3
- 2.Sf6#
- 1...Sf4
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sg7
- 2.Sf6#
- 1...f5
- 2.Bxe6#
- 1...f6
- 2.Bxe6#
- 1...Bc6
- Tries
- 1.Rc6?
- threat
- 2.Rxc5#
- 2.Qxc5#
- 1...Bd6
- 2.Rxd6#
- 1...Bxc6!
- threat
- 1.Qb2?
- 1...Bb7
- 2.Qxb7#
- 1...Bc6
- 2.Bxc6#
- 1...Bd6
- 2.Rxd6#
- 1...Bc7
- 2.Sxc7#
- 1...Sg3
- 2.Sf6#
- 1...Sf4
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sg7
- 2.Sf6#
- 1...d2
- 2.Qxd2#
- 1...f5
- 2.Bxe6#
- 1...f6
- 2.Bxe6#
- 1...c3!
- 1...Bb7
- 1.Qa2?
- 1...Bc6
- 2.Bxc6#
- 1...Bd6
- 2.Rxd6#
- 1...Bc7
- 2.Sxc7#
- 1...Sg3
- 2.Sf6#
- 1...Sf4
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sg7
- 2.Sf6#
- 1...d2
- 2.Qxd2#
- 1...f5
- 2.Bxe6#
- 1...f6
- 2.Bxe6#
- 1...Bb7!
- 1...Bc6
- 1.Qc3?
- 1...Bc6
- 2.Bxc6#
- 1...Bd6
- 2.Rxd6#
- 1...Bc7
- 2.Sxc7#
- 1...Sg3
- 2.Sf6#
- 1...Sf4
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sg7
- 2.Sf6#
- 1...d2
- 2.Qxd2#
- 1...f5
- 2.Bxe6#
- 1...f6
- 2.Bxe6#
- 1...Bb7!
- 1...Bc6
- 1.Rc6?
- Keys
- 1.Qb4!
- 1...cxb4
- 2.Ra5#
- 1...Bb7
- 2.Qxb7#
- 1...Bc6
- 2.Bxc6#
- 1...Bd6
- 2.Rxd6#
- 1...Bc7
- 2.Sxc7#
- 1...Sg3
- 2.Sf6#
- 1...Sf4
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sg7
- 2.Sf6#
- 1...d2
- 2.Qxd2#
- 1...c3
- 2.Qxe4#
- 1...f5
- 2.Bxe6#
- 1...f6
- 2.Bxe6#
- 1...cxb4
- 1.Qb4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- B(k);N_GUARD::B(D),XB(k)
- B(l);N_GUARD::R1(C),XB(l)
- B(l);N_GUARD::S(E),XB(l)
- S(g);N_GUARD::S(E)
- S(g);N_GUARD::S(E),XS(g)
- P(j);N_GUARD::B(D),XP(h)
- Tries
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- B(l);N_GUARD::R1(C),XB(l)
- Refutation
- B(k);XR(C)
- Try
- Q(A);
- Vars
- B(k);N_GUARD::QAB(A),XB(k)
- B(k);N_GUARD::B(D),XB(k)
- B(l);N_GUARD::R1(C),XB(l)
- B(l);N_GUARD::S(E),XB(l)
- S(g);N_GUARD::S(E)
- S(g);N_GUARD::S(E),XS(g)
- P(a);OGATEB::QAR(A),XP(a)
- P(j);N_GUARD::B(D),XP(h)
- Refutation
- P(b);
- Try
- Q(A);P_PINP(b)
- Vars
- B(k);N_GUARD::B(D),XB(k)
- B(l);N_GUARD::R1(C),XB(l)
- B(l);N_GUARD::S(E),XB(l)
- S(g);N_GUARD::S(E)
- S(g);N_GUARD::S(E),XS(g)
- P(a);OGATEB::QAR(A),XP(a)
- P(j);N_GUARD::B(D),XP(h)
- Refutation
- B(k);
- Try
- Q(A);
- Vars
- B(k);N_GUARD::B(D),XB(k)
- B(l);N_GUARD::R1(C),XB(l)
- B(l);N_GUARD::S(E),XB(l)
- S(g);N_GUARD::S(E)
- S(g);N_GUARD::S(E),XS(g)
- P(a);OGATEB::QAR(A),XP(a)
- P(j);N_GUARD::B(D),XP(h)
- Refutation
- B(k);
- Try
- Actual
- Q(A);
- Vars
- P(d);OGATEB,XQ(A)::R(C)
- B(k);N_GUARD::QAB(A),XB(k)
- B(k);N_GUARD::B(D),XB(k)
- B(l);N_GUARD::R1(C),XB(l)
- B(l);N_GUARD::S(E),XB(l)
- S(g);N_GUARD::S(E)
- S(g);N_GUARD::S(E),XS(g)
- P(a);OGATEB::QAR(A),XP(a)
- P(b);OGATE::QAB1(A),XP(c)
- P(j);N_GUARD::B(D),XP(h)
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).