MESON Chess Problem Database
Problem Display
PID: 206723 (k7/1R6/K1p5/2P5/8/8/1b6/1Q6 w - - 0 1)
Schonberger, Tibor
Magyar Sakkvilag, 1925
#2
4 + 3
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Ba1
- 2.Ra7#
- 2.Rb8#
- 1...Bc1
- 2.Ra7#
- 2.Rb8#
- 1...Ba3
- 2.Ra7#
- 2.Rb8#
- 1...Bc3
- 2.Ra7#
- 2.Rb8#
- 1...Bd4
- 2.Ra7#
- 2.Rb8#
- 1...Be5
- 2.Ra7#
- 1...Bf6
- 2.Ra7#
- 2.Rb8#
- 1...Bg7
- 2.Ra7#
- 2.Rb8#
- 1...Bh8
- 2.Ra7#
- 2.Rb8#
- 1...Ba1
- Tries
- 1.Rb3?
- 1...Ba1
- 2.Rb8#
- 1...Bc1
- 2.Rb8#
- 1...Ba3
- 2.Rb8#
- 1...Bc3
- 2.Rb8#
- 1...Bd4
- 2.Rb8#
- 1...Bf6
- 2.Rb8#
- 1...Bg7
- 2.Rb8#
- 1...Bh8
- 2.Rb8#
- 1...Be5!
- 1...Ba1
- 1.Rb4?
- 1...Ba1
- 2.Rb8#
- 1...Bc1
- 2.Rb8#
- 1...Ba3
- 2.Rb8#
- 1...Bc3
- 2.Rb8#
- 1...Bd4
- 2.Rb8#
- 1...Bf6
- 2.Rb8#
- 1...Bg7
- 2.Rb8#
- 1...Bh8
- 2.Rb8#
- 1...Be5!
- 1...Ba1
- 1.Rb6?
- 1...Ba1
- 2.Rb8#
- 1...Bc1
- 2.Rb8#
- 1...Ba3
- 2.Rb8#
- 1...Bc3
- 2.Rb8#
- 1...Bd4
- 2.Rb8#
- 1...Bf6
- 2.Rb8#
- 1...Bg7
- 2.Rb8#
- 1...Bh8
- 2.Rb8#
- 1...Be5!
- 1...Ba1
- 1.Rc7?
- threat
- 2.Rc8#
- 1...Be5
- 2.Ra7#
- 2.Qb7#
- 1...Kb8!
- threat
- 1.Rd7?
- threat
- 2.Rd8#
- 1...Be5
- 2.Ra7#
- 2.Qb7#
- 1...Bf6
- 2.Ra7#
- 2.Qb7#
- 1...Kb8!
- threat
- 1.Re7?
- threat
- 2.Re8#
- 1...Be5
- 2.Ra7#
- 2.Qb7#
- 1...Bf6
- 2.Ra7#
- 2.Qb7#
- 1...Kb8!
- threat
- 1.Rf7?
- threat
- 2.Rf8#
- 1...Be5
- 2.Ra7#
- 2.Qb7#
- 1...Bf6
- 2.Ra7#
- 2.Qb7#
- 1...Bg7
- 2.Ra7#
- 2.Qb7#
- 1...Kb8!
- threat
- 1.Rg7?
- threat
- 2.Rg8#
- 1...Bxg7
- 2.Qb7#
- 1...Be5
- 2.Ra7#
- 2.Qb7#
- 1...Bf6
- 2.Ra7#
- 2.Qb7#
- 1...Kb8!
- threat
- 1.Rh7?
- 1...Be5
- 2.Ra7#
- 2.Qb7#
- 1...Ba1
- 2.Ra7#
- 2.Qb7#
- 1...Bc1
- 2.Ra7#
- 2.Rh8#
- 2.Qb7#
- 1...Ba3
- 2.Ra7#
- 2.Rh8#
- 2.Qb7#
- 1...Bc3
- 2.Ra7#
- 2.Qb7#
- 1...Bd4
- 2.Ra7#
- 2.Qb7#
- 1...Bf6
- 2.Ra7#
- 2.Qb7#
- 1...Bg7
- 2.Qb7#
- 1...Bh8
- 2.Ra7#
- 2.Rxh8#
- 2.Qb7#
- 1...Kb8!
- 1...Be5
- 1.Qf5?
- threat
- 2.Qc8#
- 2.Qf8#
- 1...Bf6
- 2.Qc8#
- 1...Bg7
- 2.Qc8#
- 1...Be5!
- threat
- 1.Rb3?
- Keys
- 1.Qa2!
- threat
- 2.Qg8#
- 1...Be5
- 2.Kb6#
- 1...Bf6
- 2.Kb6#
- 1...Bg7
- 2.Kb6#
- threat
- 1.Qa2!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- B(a);::R1(D)
- Tries
- Try
- R(D);
- Vars
- B(a);::R1(D)
- Refutation
- B(a);
- Try
- R(D);
- Vars
- B(a);::R1(D)
- Refutation
- B(a);
- Try
- R(D);
- Vars
- B(a);::R1(D)
- Refutation
- B(a);
- Try
- R(D);
- Threat
- R(D)
- Refutation
- K(c);P-FLIGHT,P_SPINB(a)
- Try
- R(D);
- Threat
- R(D)
- Refutation
- K(c);P-FLIGHT,P_SPINB(a)
- Try
- R(D);
- Threat
- R(D)
- Refutation
- K(c);P-FLIGHT,P_SPINB(a)
- Try
- R(D);
- Threat
- R(D)
- Refutation
- K(c);P-FLIGHT,P_SPINB(a)
- Try
- R(D);
- Threat
- R(D)
- Vars
- B(a);OGATE,XR(D)::QAB1(A)
- Refutation
- K(c);P-FLIGHT,P_SPINB(a)
- Try
- R(D);
- Vars
- B(a);OGATE::QAB1(A)
- Refutation
- K(c);P-FLIGHT,P_SPINB(a)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- B(a);::QAR2(A)
- Refutation
- B(a);
- Try
- Actual
- Q(A);
- Threat
- QAR(A)
- Vars
- B(a);N_GUARD::QAR(A)+K(C)
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).