MESON Chess Problem Database
Problem Display
PID: 213907 (8/3B3q/3B4/1bK1P3/4kpP1/7R/2P2P2/8 w - - 0 1)
Borgula, Jan
Praca, 1947
#2
8 + 4
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qf5
- 2.Bxf5#
- 1...Qg8
- 2.Bf5#
- 1...Qh4
- 2.Bf5#
- 1...Qh6
- 2.Bf5#
- 1...Qe7
- 2.Bf5#
- 1...Qg7
- 2.Bf5#
- 1...Qh8
- 2.Bf5#
- 1...Bf1
- 2.Bc6#
- 1...Be2
- 2.Bc6#
- 1...Bd3
- 2.Bc6#
- 2.cxd3#
- 1...Ba6
- 2.Bc6#
- 1...Bc6
- 2.Bxc6#
- 1...Qf5
- Tries
- 1.Ra3?
- threat
- 2.f3#
- 1...Bd3
- 2.Bc6#
- 1...Qh1
- 2.Bf5#
- 1...Qh3
- 2.Bf5#
- 1...Be2
- 2.Bc6#
- 1...f3!
- threat
- 1.Rb3?
- threat
- 2.f3#
- 1...Bd3
- 2.Bc6#
- 1...Qh1
- 2.Bf5#
- 1...Qh3
- 2.Bf5#
- 1...Be2
- 2.Bc6#
- 1...f3!
- threat
- 1.Rc3?
- threat
- 2.f3#
- 1...Bd3
- 2.Bc6#
- 1...Qh1
- 2.Bf5#
- 1...Qh3
- 2.Bf5#
- 1...Be2
- 2.Bc6#
- 1...f3!
- threat
- 1.Ra3?
- Keys
- 1.Rd3!
- threat
- 2.f3#
- 1...Bxd3
- 2.Bc6#
- 1...f3
- 2.Rd4#
- 1...Qh1
- 2.Bf5#
- 1...Qh3
- 2.Bf5#
- threat
- 1.Rd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 11
- Sets
- Q(d);N_GUARD,P_PINP(F)::B(H),XQ(d)
- Q(d);N_GUARD::B(H)
- Q(d);N_GUARD,P_PINB(G)::B(H)
- B(c);N_GUARD::B(H)
- B(c);N_GUARD::B(H),XB(c)
- Tries
- Try
- R(C);
- Threat
- P(B)
- Vars
- B(c);N_GUARD::B(H)
- Q(d);N_GUARD::B(H)
- Refutation
- P(b);
- Try
- R(C);
- Threat
- P(B)
- Vars
- B(c);N_GUARD::B(H)
- Q(d);N_GUARD::B(H)
- Refutation
- P(b);
- Try
- R(C);
- Threat
- P(B)
- Vars
- B(c);N_GUARD::B(H)
- Q(d);N_GUARD::B(H)
- Refutation
- P(b);
- Try
- Actual
- R(C);
- Threat
- P(B)
- Vars
- B(c);N_GUARD,XR(C)::B(H)
- P(b);SBLOCK::R1(C)
- Q(d);N_GUARD::B(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).