MESON Chess Problem Database
Problem Display
PID: 141862 (1KB2N2/1N4np/1B6/R2qk3/4p2p/5R2/1b6/4Q3 w - - 0 1)
Lane, Henry Fitzgerald William
British Chess Magazine, 1898
#2
8 + 7
| 14867 | BCPS Library | 2011 |
SOLUTION
- SOUND
- Sets
- 1...Qxa5
- 2.Qxa5#
- 1...Qb5
- 2.Rxb5#
- 1...Ba1
- 2.Qxa1#
- 1...Bc1
- 2.Qc3#
- 1...Ba3
- 2.Qc3#
- 1...Bc3
- 2.Qxc3#
- 1...Bd4
- 2.Bc7#
- 1...Sf5
- 2.Rxf5#
- 1...Sh5
- 2.Rf5#
- 1...Se6
- 2.Sd7#
- 1...Se8
- 2.Rf5#
- 1...e3
- 2.Qxe3#
- 1...h3
- 2.Qg3#
- 1...h5
- 2.Sg6#
- 1...h6
- 2.Sg6#
- 1...Qxa5
- Tries
- 1.Ka8?
- 1...Qxa5+
- 2.Qxa5#
- 1...Qb5
- 2.Rxb5#
- 1...Sf5
- 2.Rxf5#
- 1...e3
- 2.Qxe3#
- 1...Ba1
- 2.Qxa1#
- 1...Bc1
- 2.Qc3#
- 1...Ba3
- 2.Qc3#
- 1...Bc3
- 2.Qxc3#
- 1...Bd4
- 2.Bc7#
- 1...Sh5
- 2.Rf5#
- 1...Se6
- 2.Sd7#
- 1...Se8
- 2.Rf5#
- 1...h3
- 2.Qg3#
- 1...h5
- 2.Sg6#
- 1...h6
- 2.Sg6#
- 1...Qc5!
- 1...Qxa5+
- 1.Bh3?
- threat
- 2.Sd7#
- 1...Qxa5
- 2.Qxa5#
- 1...Qb5
- 2.Rxb5#
- 1...Sf5
- 2.Rxf5#
- 1...e3
- 2.Qxe3#
- 1...Qc5!
- threat
- 1.Bg4?
- threat
- 2.Sd7#
- 1...Qxa5
- 2.Qxa5#
- 1...Qb5
- 2.Rxb5#
- 1...Sf5
- 2.Rxf5#
- 1...e3
- 2.Qxe3#
- 1...Qc5!
- threat
- 1.Be6?
- threat
- 2.Rxd5#
- 1...Qxa5
- 2.Qxa5#
- 1...Sxe6
- 2.Sd7#
- 1...Sf5
- 2.Rxf5#
- 1...e3
- 2.Qxe3#
- 1...Qb5
- 2.Rxb5#
- 1...Qc5!
- threat
- 1.Rf1?
- 1...Qxa5
- 2.Qxa5#
- 1...Qb5
- 2.Rxb5#
- 1...Sf5
- 2.Rxf5#
- 1...e3
- 2.Qxe3#
- 1...Bd4
- 2.Bc7#
- 1...Ba1
- 2.Qxa1#
- 1...Bc1
- 2.Qc3#
- 1...Ba3
- 2.Qc3#
- 1...Bc3
- 2.Qxc3#
- 1...Sh5
- 2.Rf5#
- 1...Se6
- 2.Sd7#
- 1...Se8
- 2.Rf5#
- 1...h3
- 2.Qg3#
- 1...h5
- 2.Sg6#
- 1...h6
- 2.Sg6#
- 1...Qc5!
- 1...Qxa5
- 1.Rf4?
- threat
- 2.Qxe4#
- 1...Sf5
- 2.Rxf5#
- 1...e3
- 2.Bc7#
- 2.Qxe3#
- 1...Kxf4!
- threat
- 1.Rf7?
- 1...Qxa5
- 2.Qxa5#
- 1...Qb5
- 2.Rxb5#
- 1...Sf5
- 2.Rxf5#
- 1...e3
- 2.Qxe3#
- 1...Bd4
- 2.Bc7#
- 1...Ba1
- 2.Qxa1#
- 1...Bc1
- 2.Qc3#
- 1...Ba3
- 2.Qc3#
- 1...Bc3
- 2.Qxc3#
- 1...Sh5
- 2.Rf5#
- 1...Se6
- 2.Sd7#
- 1...Se8
- 2.Rf5#
- 1...h3
- 2.Qg3#
- 1...h5
- 2.Sg6#
- 1...h6
- 2.Sg6#
- 1...Qc5!
- 1...Qxa5
- 1.Qd2?
- threat
- 2.Bc7#
- 2.Rxd5#
- 2.Qf4#
- 2.Qxb2#
- 2.Qh2#
- 2.Qxd5#
- 1...Qxa5
- 2.Qxa5#
- 2.Qd6#
- 1...Sf5
- 2.Rxf5#
- 1...e3
- 2.Qxe3#
- 2.Qxd5#
- 1...Bd4
- 2.Bxd4#
- 2.Bc7#
- 2.Qf4#
- 2.Qh2#
- 2.Qxd4#
- 1...Qb5
- 2.Bc7#
- 2.Rxb5#
- 2.Qd6#
- 1...Qc5
- 2.Bc7#
- 2.Rxc5#
- 2.Qd6#
- 1...Ba1
- 2.Bc7#
- 2.Rxd5#
- 2.Qf4#
- 2.Qh2#
- 2.Qxd5#
- 1...Bc1
- 2.Bd4#
- 2.Bc7#
- 2.Rxd5#
- 2.Qc3#
- 2.Qd4#
- 2.Qxd5#
- 1...Ba3
- 2.Bd4#
- 2.Rxd5#
- 2.Qc3#
- 2.Qf4#
- 2.Qh2#
- 2.Qd4#
- 2.Qxd5#
- 1...Bc3
- 2.Bc7#
- 2.Rxd5#
- 2.Qxc3#
- 2.Qf4#
- 2.Qh2#
- 2.Qxd5#
- 1...Sh5
- 2.Bc7#
- 2.Rf5#
- 2.Rxd5#
- 2.Qg5#
- 2.Qxb2#
- 2.Qxd5#
- 1...Se6
- 2.Sd7#
- 2.Rxd5#
- 2.Qxd5#
- 1...Se8
- 2.Rf5#
- 2.Rxd5#
- 2.Qf4#
- 2.Qg5#
- 2.Qxb2#
- 2.Qh2#
- 2.Qxd5#
- 1...exf3!
- threat
- 1.Qb4?
- threat
- 2.Bc7#
- 2.Qd6#
- 2.Qxb2#
- 1...Qxa5
- 2.Qxa5#
- 2.Qd6#
- 1...Qb5
- 2.Rxb5#
- 2.Qd6#
- 2.Qxb5#
- 1...Qc5
- 2.Rxc5#
- 2.Qxc5#
- 1...Sf5
- 2.Rxf5#
- 1...Bd4
- 2.Bxd4#
- 2.Bc7#
- 2.Qd6#
- 2.Qxd4#
- 1...Ba1
- 2.Bc7#
- 2.Qd6#
- 1...Bc1
- 2.Bd4#
- 2.Bc7#
- 2.Qc3#
- 2.Qd6#
- 2.Qd4#
- 1...Ba3
- 2.Bd4#
- 2.Bc7#
- 2.Qc3#
- 2.Qd4#
- 1...Bc3
- 2.Bc7#
- 2.Qxc3#
- 2.Qd6#
- 1...Se6
- 2.Sd7#
- 2.Qd6#
- 1...Se8
- 2.Rf5#
- 2.Qe7#
- 2.Qxb2#
- 1...e3
- 2.Bc7#
- 2.Qf4#
- 1...exf3!
- threat
- 1.Qd1?
- threat
- 2.Bc7#
- 2.Rxd5#
- 2.Qxd5#
- 1...Qxa5
- 2.Qd6#
- 1...Sf5
- 2.Rxf5#
- 1...e3
- 2.Qxd5#
- 1...Bd4
- 2.Bxd4#
- 2.Bc7#
- 2.Qxd4#
- 1...Qb5
- 2.Bc7#
- 2.Rxb5#
- 2.Qd6#
- 1...Qc5
- 2.Bc7#
- 2.Rxc5#
- 2.Qd6#
- 1...Ba3
- 2.Bd4#
- 2.Rxd5#
- 2.Qd4#
- 2.Qxd5#
- 1...Se6
- 2.Sd7#
- 2.Rxd5#
- 2.Qxd5#
- 1...Se8
- 2.Rf5#
- 2.Rxd5#
- 2.Qxd5#
- 1...exf3!
- threat
- 1.Qe3?
- threat
- 2.Bc7#
- 2.Qf4#
- 1...Qb5
- 2.Rxb5#
- 1...Qc5
- 2.Rxc5#
- 2.Qxc5#
- 1...Sf5
- 2.Rxf5#
- 1...Bc1
- 2.Bd4#
- 2.Bc7#
- 2.Qd4#
- 2.Qc3#
- 1...Ba3
- 2.Bd4#
- 2.Qd4#
- 2.Qf4#
- 2.Qc3#
- 1...Sh5
- 2.Bc7#
- 2.Rf5#
- 2.Qg5#
- 1...Se6
- 2.Sd7#
- 1...Se8
- 2.Rf5#
- 2.Qf4#
- 2.Qg5#
- 1...Qxa5!
- threat
- 1.Ka8?
- Keys
- 1.Bg1!
- 1...Qxa5
- 2.Qxa5#
- 1...Qb5
- 2.Rxb5#
- 1...Qc5
- 2.Rxc5#
- 1...Sf5
- 2.Rxf5#
- 1...e3
- 2.Qxe3#
- 1...Ba1
- 2.Qxa1#
- 1...Bc1
- 2.Qc3#
- 1...Ba3
- 2.Qc3#
- 1...Bc3
- 2.Qxc3#
- 1...Bd4
- 2.Bh2#
- 1...Sh5
- 2.Rf5#
- 1...Se6
- 2.Sd7#
- 1...Se8
- 2.Rf5#
- 1...h3
- 2.Qg3#
- 1...h5
- 2.Sg6#
- 1...h6
- 2.Sg6#
- 1...Qxa5
- 1.Bg1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- Q(d);N_SPINQ(d),OGATE,XR(C)::QAR(A),XQ(d)
- Q(d);OGATEB::R(C),XQ(d)
- B(a);OGATEB::QAB(A),XB(a)
- B(a);N_GUARD::QAB(A)
- B(a);N_GUARD::QAB(A),XB(a)
- B(a);SBLOCK::B(D)
- S(f);N_GUARD::R1(B),XS(f)
- S(f);N_GUARD::R1(B)
- S(f);SBLOCK::S(H)
- P(b);OGATEB::QAR2(A),XP(b)
- P(c);N_GUARD::QAB(A)
- P(g);N_GUARD::S(H)
- Tries
- Try
- K(F);P-FLIGHT,P_SPINS(E)
- Vars
- Q(d);CHECK,N_PINS(E),N_SPINQ(d),OGATE,XR(C)::QAR(A),XQ(d)
- Q(d);N_PINS(E),OGATEB::R(C),XQ(d)
- S(f);N_GUARD::R1(B),XS(f)
- P(b);OGATEB::QAR2(A),XP(b)
- B(a);OGATEB::QAB(A),XB(a)
- B(a);N_GUARD::QAB(A)
- B(a);N_GUARD::QAB(A),XB(a)
- B(a);SBLOCK::B(D)
- S(f);N_GUARD::R1(B)
- S(f);SBLOCK::S(H)
- P(c);N_GUARD::QAB(A)
- P(g);N_GUARD::S(H)
- Refutation
- Q(d);N_PINS(E)
- Try
- B(G);
- Threat
- S(H)
- Vars
- Q(d);N_SPINQ(d),OGATE,XR(C)::QAR(A),XQ(d)
- Q(d);OGATEB::R(C),XQ(d)
- S(f);N_GUARD::R1(B),XS(f)
- P(b);OGATEB::QAR2(A),XP(b)
- Refutation
- Q(d);
- Try
- B(G);
- Threat
- S(H)
- Vars
- Q(d);N_SPINQ(d),OGATE,XR(C)::QAR(A),XQ(d)
- Q(d);OGATEB::R(C),XQ(d)
- S(f);N_GUARD::R1(B),XS(f)
- P(b);OGATEB::QAR2(A),XP(b)
- Refutation
- Q(d);
- Try
- B(G);
- Threat
- R1(C),XQ(d)
- Vars
- Q(d);N_SPINQ(d),OGATE,XR(C)::QAR(A),XQ(d)
- S(f);SBLOCK,XB(G)::S(H)
- S(f);N_GUARD::R1(B),XS(f)
- P(b);OGATEB::QAR2(A),XP(b)
- Q(d);OGATEB::R(C),XQ(d)
- Refutation
- Q(d);
- Try
- R(B);
- Vars
- Q(d);N_SPINQ(d),OGATE,XR(C)::QAR(A),XQ(d)
- Q(d);OGATEB::R(C),XQ(d)
- S(f);N_GUARD::R1(B),XS(f)
- P(b);OGATEB::QAR2(A),XP(b)
- B(a);SBLOCK::B(D)
- B(a);OGATEB::QAB(A),XB(a)
- B(a);N_GUARD::QAB(A)
- B(a);N_GUARD::QAB(A),XB(a)
- S(f);N_GUARD::R1(B)
- S(f);SBLOCK::S(H)
- P(c);N_GUARD::QAB(A)
- P(g);N_GUARD::S(H)
- Refutation
- Q(d);
- Try
- R(B);
- Threat
- QAR1(A),XP(b)
- Vars
- S(f);N_GUARD::R1(B),XS(f)
- Refutation
- K(e);N_SPINP(b),N_SPINQ(d),S_FLIGHT,XR(B)
- Try
- R(B);
- Vars
- Q(d);N_SPINQ(d),OGATE,XR(C)::QAR(A),XQ(d)
- Q(d);OGATEB::R(C),XQ(d)
- S(f);N_GUARD::R1(B),XS(f)
- P(b);OGATEB::QAR2(A),XP(b)
- B(a);SBLOCK::B(D)
- B(a);OGATEB::QAB(A),XB(a)
- B(a);N_GUARD::QAB(A)
- B(a);N_GUARD::QAB(A),XB(a)
- S(f);N_GUARD::R1(B)
- S(f);SBLOCK::S(H)
- P(c);N_GUARD::QAB(A)
- P(g);N_GUARD::S(H)
- Refutation
- Q(d);
- Try
- Q(A);N_PINP(b)
- Threat
- DUALS(6)
- Vars
- S(f);N_GUARD::R1(B),XS(f)
- Refutation
- P(b);XR(B)
- Try
- Q(A);N_PINP(b)
- Threat
- DUALS(3)
- Vars
- S(f);N_GUARD::R1(B),XS(f)
- Refutation
- P(b);XR(B)
- Try
- Q(A);N_PINP(b)
- Threat
- DUALS(3)
- Vars
- Q(d);N_SPINQ(d),OGATE,XR(C)::QAB1(A)
- S(f);N_GUARD::R1(B),XS(f)
- P(b);::QAR1(A),XQ(d)
- Refutation
- P(b);XR(B)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(d);OGATEB::R(C),XQ(d)
- S(f);N_GUARD::R1(B),XS(f)
- S(f);SBLOCK::S(H)
- Refutation
- Q(d);N_SPINQ(d),XR(C)
- Try
- Actual
- B(D);
- Vars
- Q(d);N_SPINQ(d),OGATE,XR(C)::QAR(A),XQ(d)
- Q(d);OGATEB,P_PINS(E)::R(C),XQ(d)
- Q(d);OGATEB::R(C),XQ(d)
- S(f);N_GUARD::R1(B),XS(f)
- P(b);OGATEB::QAR2(A),XP(b)
- B(a);OGATEB::QAB(A),XB(a)
- B(a);N_GUARD::QAB(A)
- B(a);N_GUARD::QAB(A),XB(a)
- B(a);SBLOCK::B(D)
- S(f);N_GUARD::R1(B)
- S(f);SBLOCK::S(H)
- P(c);N_GUARD::QAB(A)
- P(g);N_GUARD::S(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).