MESON Chess Problem Database
Problem Display
PID: 114720 (2N5/1PR5/2B5/N1kb2p1/6Qb/Kp1p4/n1rP2P1/3R4 w - - 0 1)
Alvey, George Clarence Vincent
Manchester Guardian, 1911
#2
10 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rc4
- 2.Sxb3#
- 1...Bxg2
- 2.Sxb3#
- 1...Bf3
- 2.Sxb3#
- 1...Sc1
- 2.Qb4#
- 1...Sc3
- 2.Qb4#
- 1...Sb4
- 2.Qxb4#
- 1...Rc4
- Tries
- 1.Qe6?
- threat
- 2.Qxd5#
- 2.Qe3#
- 1...Kd4
- 2.Qxd5#
- 2.Qe3#
- 1...Bxg2
- 2.Sxb3#
- 2.Qe3#
- 2.Qd6#
- 1...Bxc6
- 2.Qe5#
- 1...Rc4
- 2.Sxb3#
- 2.Qxd5#
- 1...Bf2
- 2.Qxd5#
- 1...Bf3
- 2.Sxb3#
- 2.Qe3#
- 2.Qd6#
- 1...Bc4
- 2.Qe3#
- 2.Qd6#
- 1...Be4
- 2.Sxb3#
- 2.Qd6#
- 1...Sc3
- 2.Qe3#
- 1...Sb4
- 2.Qe3#
- 1...Bxe6!
- threat
- 1.Qg3?
- threat
- 2.Qe3#
- 1...Kd4
- 2.Qe3#
- 1...Bxc6
- 2.Qe5#
- 1...Rc4
- 2.Sxb3#
- 1...Bf3
- 2.Qd6#
- 1...Bxg3!
- threat
- 1.Qc4+?
- 1...Rxc4
- 2.Sxb3#
- 1...Bxc4!
- 1...Rxc4
- 1.Qe4?
- threat
- 2.Qxd5#
- 2.Qe3#
- 1...Bxc6
- 2.Qe5#
- 1...Rc4
- 2.Sxb3#
- 2.Qxd5#
- 1...Bf2
- 2.Qxd5#
- 1...Bc4
- 2.Ba4#
- 2.Bd7#
- 2.Be8#
- 2.Qe3#
- 1...Be6
- 2.Ba4#
- 2.Bd7#
- 2.Be8#
- 2.Qe3#
- 1...Bf7
- 2.Ba4#
- 2.Bd7#
- 2.Be8#
- 2.Qe3#
- 1...Bg8
- 2.Ba4#
- 2.Bd7#
- 2.Be8#
- 2.Qe3#
- 1...Sc3
- 2.Qe3#
- 2.Qb4#
- 1...Sb4
- 2.Qe3#
- 2.Qxb4#
- 1...Bxe4!
- threat
- 1.Qf4?
- threat
- 2.Qe3#
- 1...Bxc6
- 2.Qe5#
- 1...Rc4
- 2.Sxb3#
- 1...Bf2
- 2.Qxf2#
- 1...gxf4!
- threat
- 1.Qxg5?
- threat
- 2.Qe3#
- 2.Qxd5#
- 1...Kd4
- 2.Qe3#
- 2.Qxd5#
- 1...Rc4
- 2.Sxb3#
- 2.Qxd5#
- 1...Bf2
- 2.Qxd5#
- 1...Sc3
- 2.Qe3#
- 1...Sb4
- 2.Qe3#
- 1...Bxg5!
- threat
- 1.b8Q?
- threat
- 2.Sb7#
- 2.Qa7#
- 2.Qb5#
- 2.Qb6#
- 1...Be4
- 2.Qa7#
- 2.Qb6#
- 1...Bc4
- 2.Sb7#
- 2.Bf3#
- 2.Ba8#
- 2.Qa7#
- 2.Qb6#
- 1...Sc3
- 2.Sb7#
- 2.Qa7#
- 2.Qgb4#
- 2.Qbb4#
- 2.Qb6#
- 1...Bxc6!
- threat
- 1.b8B?
- threat
- 2.Sb7#
- 2.Ba7#
- 1...Be4
- 2.Ba7#
- 1...Bxc6!
- threat
- 1.Qe6?
- Keys
- 1.Qe2!
- threat
- 2.Qe3#
- 1...Kd4
- 2.Qe3#
- 1...Bxc6
- 2.Qe5#
- 1...dxe2
- 2.d4#
- 1...Rc4
- 2.Sxb3#
- 1...Bf2
- 2.Qxf2#
- threat
- 1.Qe2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 5
- Sets
- R(b);S_CUTB(g)::S(F),XP(c)
- B(g);N_GUARD,XP(C)::S(F),XP(c)
- B(g);N_GUARD::S(F),XP(c)
- S(a);N_GUARD::QAB1(E)
- S(a);N_GUARD::QAB1(E),XS(a)
- Tries
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- B(g);OGATEB,P_SPINB(g),XB(G)::QAR2(E)
- B(e);::QAR1(E),XB(g)
- S(a);::QAB(E)
- Refutation
- B(g);XQ(E)
- Try
- Q(E);
- Threat
- QAB(E)
- Vars
- K(f);S_FLIGHT::QAB1(E)
- B(g);OGATEB,P_SPINB(g),XB(G)::QAR2(E)
- R(b);SBLOCK,S_CUTB(g)::S(F),XP(c)
- B(g);::QAB1(E)
- Refutation
- B(e);XQ(E)
- Try
- Q(E);CHECK
- Vars
- R(b);SBLOCK,XQ(E)::S(F),XP(c)
- Refutation
- B(g);XQ(E)
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- B(g);OGATEB,P_SPINB(g),XB(G)::QAR2(E)
- B(e);::QAR1(E),XB(g)
- Refutation
- B(g);XQ(E)
- Try
- Q(E);
- Threat
- QAB(E)
- Vars
- B(g);OGATEB,P_SPINB(g),XB(G)::QAR2(E)
- R(b);S_CUTB(g)::S(F),XP(c)
- B(e);N_GUARD::QAB(E),XB(e)
- Refutation
- P(h);XQ(E)
- Try
- Q(E);P_PINB(g),XP(h)
- Threat
- DUALS(2)
- Vars
- B(e);::QAR1(E),XB(g)
- S(a);::QAB(E)
- Refutation
- B(e);N_SPINB(g),XQ(E)
- Try
- P(H);
- Threat
- DUALS(4)
- Refutation
- B(g);P_SPINB(g),XB(G)
- Try
- P(H);
- Threat
- DUALS(2)
- Vars
- B(g);::B(H)
- Refutation
- B(g);P_SPINB(g),XB(G)
- Try
- Actual
- Q(E);
- Threat
- QAB(E)
- Vars
- K(f);S_FLIGHT::QAB1(E)
- B(g);OGATEB,P_SPINB(g),XB(G)::QAR2(E)
- P(d);OGATE,XQ(E)::P(B)
- R(b);SBLOCK,S_CUTB(g)::S(F),XP(c)
- B(e);N_GUARD::QAB(E),XB(e)
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).