MESON Chess Problem Database
Problem Display
PID: 218442 (8/1b2K2Q/8/1B2pp2/3Pk3/4P3/4P2b/3N4 w - - 0 1)
Seymour, Robert Hoe
Philadelphia Times, 1881
#2
7 + 5
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Kd5
- 2.Sc3#
- 1...Bg1
- 2.Qh1#
- 1...Bg3
- 2.Qh1#
- 1...Bf4
- 2.Qh1#
- 1...Bd5
- 2.Bd3#
- 1...Ba6
- 2.Bc6#
- 1...Bc6
- 2.Bxc6#
- 1...Bc8
- 2.Bc6#
- 1...Kd5
- Tries
- 1.Kd6?
- threat
- 2.Bd3#
- 2.Qxb7#
- 1...Bd5
- 2.Bd3#
- 1...Ba6
- 2.Bc6#
- 1...Bc6
- 2.Bd3#
- 2.Bxc6#
- 1...Ba8
- 2.Bd3#
- 1...Bc8
- 2.Bd3#
- 2.Bc6#
- 1...exd4+!
- threat
- 1.Sf2+?
- 1...Kd5
- 2.Qg8#
- 2.Qf7#
- 1...Kxe3!
- 1...Kd5
- 1.Qxf5+?
- 1...Kd5
- 2.Sc3#
- 1...Kxf5!
- 1...Kd5
- 1.Qg8?
- threat
- 2.Bd3#
- 2.Qg2#
- 1...f4
- 2.Bd3#
- 1...Bg3
- 2.Bd3#
- 1...Ba6
- 2.Bc6#
- 2.Qg2#
- 1...exd4!
- threat
- 1.Qh3?
- threat
- 2.Sc3#
- 2.Qg2#
- 2.Qf3#
- 1...Kd5
- 2.Sc3#
- 1...Bg3
- 2.Qg2#
- 2.Qh1#
- 1...f4
- 2.Sc3#
- 1...exd4!
- threat
- 1.Qh4+?
- 1...Kd5
- 2.Sc3#
- 1...Bf4
- 2.Qh1#
- 1...f4!
- 1...Kd5
- 1.Qh5?
- threat
- 2.Qf3#
- 1...Kd5
- 2.Sc3#
- 1...f4
- 2.Qxe5#
- 1...exd4!
- threat
- 1.Qf7?
- threat
- 2.Bd3#
- 1...Ba6
- 2.Bc6#
- 1...exd4!
- threat
- 1.Qg7?
- threat
- 2.Qg2#
- 1...Kd5
- 2.Sc3#
- 1...exd4
- 2.Qxd4#
- 1...f4
- 2.Qxe5#
- 1...Bg3!
- threat
- 1.Kd6?
- Keys
- 1.Qh8!
- 1...Kd5
- 2.Sc3#
- 1...exd4
- 2.Qxd4#
- 1...f4
- 2.Qxe5#
- 1...Ba8
- 2.Qxa8#
- 1...Bg1
- 2.Qxe5#
- 2.Qh1#
- 1...Bg3
- 2.Qh1#
- 1...Bf4
- 2.Qh1#
- 1...Bd5
- 2.Bd3#
- 1...Ba6
- 2.Bc6#
- 1...Bc6
- 2.Bxc6#
- 1...Bc8
- 2.Bc6#
- 1...Kd5
- 1.Qh8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- K(b);N_SPINP(d),S_FLIGHT::S(A)
- B(a);OGATE::QAB(G)
- B(e);SBLOCK::B(E)
- B(e);N_GUARD::B(E)
- B(e);N_GUARD::B(E),XB(e)
- Tries
- Try
- K(F);S_FLIGHT
- Threat
- DUALS(2)
- Vars
- B(e);::B(E)
- B(e);N_GUARD::B(E)
- Refutation
- P(c);CHECK,XP(D)
- Try
- S(A);CHECK
- Refutation
- K(b);N_SPINP(d),P-FLIGHT,XP(C)
- Try
- Q(G);CHECK,XP(d)
- Vars
- K(b);P_SPINP(c),S_FLIGHT::S(A)
- Refutation
- K(b);S_FLIGHT,XQ(G)
- Try
- Q(G);N_PINP(d)
- Threat
- DUALS(2)
- Vars
- P(d);::B(E)
- B(a);::B(E)
- Refutation
- P(c);XP(D)
- Try
- Q(G);N_PINP(d)
- Threat
- DUALS(3)
- Vars
- K(b);S_FLIGHT::S(A)
- P(d);::S(A)
- Refutation
- P(c);XP(D)
- Try
- Q(G);CHECK,N_PINP(d)
- Vars
- K(b);S_FLIGHT::S(A)
- B(a);OGATE,P_SPINB(a)::QAB(G)
- Refutation
- P(d);P_SPINP(d)
- Try
- Q(G);N_PINP(d)
- Threat
- QAB1(G)
- Vars
- K(b);S_FLIGHT::S(A)
- P(d);OGATE::QAR1(G),XP(c)
- Refutation
- P(c);XP(D)
- Try
- Q(G);N_PINP(d)
- Threat
- B(E)
- Vars
- B(e);N_GUARD::B(E)
- Refutation
- P(c);XP(D)
- Try
- Q(G);N_PINP(d)
- Threat
- QAB(G)
- Vars
- K(b);S_FLIGHT::S(A)
- P(c);OGATE,XP(D)::QAR1(G),XP(c)
- P(d);S_CUTB(a)::QAR1(G),XP(c)
- Refutation
- B(a);
- Try
- Actual
- Q(G);N_PINP(d)
- Vars
- K(b);S_FLIGHT::S(A)
- P(c);OGATE,XP(D)::QAR1(G),XP(c)
- P(d);S_CUTB(a)::QAR1(G),XP(c)
- B(e);OGATEB::QAB(G),XB(e)
- B(a);OGATE::QAB(G)
- B(e);SBLOCK::B(E)
- B(e);N_GUARD::B(E)
- B(e);N_GUARD::B(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).