MESON Chess Problem Database
Problem Display
PID: 6846 (1k6/2nQ4/1BB1n3/8/2K5/8/8/8 w - - 0 1)
Brixi, Heinz
Die Schwalbe, 1934
#2
4 + 3
| 70 | American Chess Problemist | 1950 |
| 273 | Mat Plus | 1995 |
| 5454 | Near Snap | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sd4
- 2.Qxc7#
- 2.Qd8#
- 1...Sf4
- 2.Qxc7#
- 2.Qd8#
- 1...Sc5
- 2.Qxc7#
- 2.Qd8#
- 1...Sg5
- 2.Qxc7#
- 2.Qd8#
- 1...Sg7
- 2.Qxc7#
- 2.Qd8#
- 1...Sd8
- 2.Qxc7#
- 2.Qxd8#
- 1...Sf8
- 2.Qxc7#
- 2.Qd8#
- 1...Sb5
- 2.Qb7#
- 1...Sd5
- 2.Ba7#
- 2.Qb7#
- 1...Sa6
- 2.Ba7#
- 2.Qb7#
- 1...Sa8
- 2.Ba7#
- 2.Qb7#
- 1...Se8
- 2.Ba7#
- 2.Qb7#
- 1...Sd4
- Tries
- 1.Ba5?
- 1...Sd4
- 2.Qxc7#
- 1...Sf4
- 2.Qxc7#
- 1...Sc5
- 2.Qxc7#
- 1...Sg5
- 2.Qxc7#
- 1...Sg7
- 2.Qxc7#
- 1...Sd8
- 2.Qxc7#
- 1...Sf8
- 2.Qxc7#
- 1...Sb5
- 2.Qb7#
- 1...Sd5
- 2.Qb7#
- 1...Sa6
- 2.Qb7#
- 1...Sa8
- 2.Qb7#
- 1...Se8
- 2.Qb7#
- 1...Ka7!
- 1...Sd4
- 1.Bc5?
- 1...Sd4
- 2.Qd8#
- 1...Sf4
- 2.Qd8#
- 1...Sg5
- 2.Qd8#
- 1...Sg7
- 2.Qd8#
- 1...Sd8
- 2.Qxd8#
- 1...Sf8
- 2.Qd8#
- 1...Sb5
- 2.Qb7#
- 1...Sd5
- 2.Ba7#
- 2.Qb7#
- 1...Sa6
- 2.Ba7#
- 2.Qb7#
- 1...Sa8
- 2.Ba7#
- 2.Qb7#
- 1...Se8
- 2.Ba7#
- 2.Qb7#
- 1...Sxc5!
- 1...Sd4
- 1.Bh1?
- 1...Sd4
- 2.Qxc7#
- 2.Qd8#
- 1...Sf4
- 2.Qxc7#
- 2.Qd8#
- 1...Sc5
- 2.Qxc7#
- 2.Qd8#
- 1...Sg5
- 2.Qxc7#
- 2.Qd8#
- 1...Sg7
- 2.Qxc7#
- 2.Qd8#
- 1...Sd8
- 2.Qxc7#
- 2.Qxd8#
- 1...Sf8
- 2.Qxc7#
- 2.Qd8#
- 1...Sb5
- 2.Qb7#
- 1...Sa6
- 2.Ba7#
- 2.Qb7#
- 1...Sa8
- 2.Ba7#
- 2.Qb7#
- 1...Se8
- 2.Ba7#
- 2.Qb7#
- 1...Sd5!
- 1...Sd4
- 1.Bg2?
- 1...Sd4
- 2.Qxc7#
- 2.Qd8#
- 1...Sf4
- 2.Qxc7#
- 2.Qd8#
- 1...Sc5
- 2.Qxc7#
- 2.Qd8#
- 1...Sg5
- 2.Qxc7#
- 2.Qd8#
- 1...Sg7
- 2.Qxc7#
- 2.Qd8#
- 1...Sd8
- 2.Qxc7#
- 2.Qxd8#
- 1...Sf8
- 2.Qxc7#
- 2.Qd8#
- 1...Sb5
- 2.Qb7#
- 1...Sa6
- 2.Ba7#
- 2.Qb7#
- 1...Sa8
- 2.Ba7#
- 2.Qb7#
- 1...Se8
- 2.Ba7#
- 2.Qb7#
- 1...Sd5!
- 1...Sd4
- 1.Bf3?
- 1...Sd4
- 2.Qxc7#
- 2.Qd8#
- 1...Sf4
- 2.Qxc7#
- 2.Qd8#
- 1...Sc5
- 2.Qxc7#
- 2.Qd8#
- 1...Sg5
- 2.Qxc7#
- 2.Qd8#
- 1...Sg7
- 2.Qxc7#
- 2.Qd8#
- 1...Sd8
- 2.Qxc7#
- 2.Qxd8#
- 1...Sf8
- 2.Qxc7#
- 2.Qd8#
- 1...Sb5
- 2.Qb7#
- 1...Sa6
- 2.Ba7#
- 2.Qb7#
- 1...Sa8
- 2.Ba7#
- 2.Qb7#
- 1...Se8
- 2.Ba7#
- 2.Qb7#
- 1...Sd5!
- 1...Sd4
- 1.Be4?
- 1...Sd4
- 2.Qxc7#
- 2.Qd8#
- 1...Sf4
- 2.Qxc7#
- 2.Qd8#
- 1...Sc5
- 2.Qxc7#
- 2.Qd8#
- 1...Sg5
- 2.Qxc7#
- 2.Qd8#
- 1...Sg7
- 2.Qxc7#
- 2.Qd8#
- 1...Sd8
- 2.Qxc7#
- 2.Qxd8#
- 1...Sf8
- 2.Qxc7#
- 2.Qd8#
- 1...Sb5
- 2.Qb7#
- 1...Sa6
- 2.Ba7#
- 2.Qb7#
- 1...Sa8
- 2.Ba7#
- 2.Qb7#
- 1...Se8
- 2.Ba7#
- 2.Qb7#
- 1...Sd5!
- 1...Sd4
- 1.Bd5?
- 1...Sd4
- 2.Qxc7#
- 2.Qd8#
- 1...Sf4
- 2.Qxc7#
- 2.Qd8#
- 1...Sc5
- 2.Qxc7#
- 2.Qd8#
- 1...Sg5
- 2.Qxc7#
- 2.Qd8#
- 1...Sg7
- 2.Qxc7#
- 2.Qd8#
- 1...Sd8
- 2.Qxc7#
- 2.Qxd8#
- 1...Sf8
- 2.Qxc7#
- 2.Qd8#
- 1...Sb5
- 2.Qb7#
- 1...Sa6
- 2.Ba7#
- 2.Qb7#
- 1...Sa8
- 2.Ba7#
- 2.Qb7#
- 1...Se8
- 2.Ba7#
- 2.Qb7#
- 1...Sxd5!
- 1...Sd4
- 1.Qxe6?
- 1...Sb5
- 2.Qg8#
- 2.Qe8#
- 1...Sd5
- 2.Qg8#
- 2.Qe8#
- 1...Sa6
- 2.Qg8#
- 2.Qe8#
- 1...Sa8
- 2.Qg8#
- 2.Qe8#
- 1...Se8
- 2.Qxe8#
- 1...Sxe6!
- 1...Sb5
- 1.Qe8+?
- 1...Sd8
- 2.Qxd8#
- 1...Sxe8!
- 1...Sd8
- 1.Qd6?
- 1...Sd4
- 2.Qxc7#
- 2.Qd8#
- 1...Sf4
- 2.Qxc7#
- 2.Qd8#
- 1...Sc5
- 2.Qxc7#
- 2.Qd8#
- 1...Sg5
- 2.Qxc7#
- 2.Qd8#
- 1...Sg7
- 2.Qxc7#
- 2.Qd8#
- 1...Sd8
- 2.Qxc7#
- 2.Qxd8#
- 1...Sf8
- 2.Qxc7#
- 2.Qd8#
- 1...Kc8!
- 1...Sd4
- 1.Qe7?
- 1...Sd4
- 2.Qd8#
- 2.Qxc7#
- 1...Sf4
- 2.Qd8#
- 2.Qxc7#
- 1...Sc5
- 2.Qd8#
- 2.Qxc7#
- 1...Sg5
- 2.Qd8#
- 2.Qxc7#
- 1...Sg7
- 2.Qd8#
- 2.Qxc7#
- 1...Sd8
- 2.Qxd8#
- 2.Qxc7#
- 1...Sf8
- 2.Qd8#
- 2.Qxc7#
- 1...Sb5
- 2.Qb7#
- 1...Sd5
- 2.Qb7#
- 1...Sa6
- 2.Qb7#
- 1...Sa8
- 2.Qb7#
- 1...Se8
- 2.Qb7#
- 1...Kc8!
- 1...Sd4
- 1.Qf7?
- 1...Sd4
- 2.Qxc7#
- 1...Sf4
- 2.Qxc7#
- 1...Sc5
- 2.Qxc7#
- 1...Sg5
- 2.Qxc7#
- 1...Sg7
- 2.Qxc7#
- 1...Sd8
- 2.Qxc7#
- 1...Sf8
- 2.Qxc7#
- 1...Sb5
- 2.Qb7#
- 1...Sd5
- 2.Qb7#
- 1...Sa6
- 2.Qb7#
- 1...Sa8
- 2.Qb7#
- 1...Se8
- 2.Qb7#
- 1...Kc8!
- 1...Sd4
- 1.Ba5?
- Keys
- 1.Ba8!
- 1...Kxa8
- 2.Qc8#
- 1...Sxa8
- 2.Ba7#
- 1...Sd4
- 2.Qd8#
- 1...Sf4
- 2.Qd8#
- 1...Sc5
- 2.Qd8#
- 1...Sg5
- 2.Qd8#
- 1...Sg7
- 2.Qd8#
- 1...Sd8
- 2.Qxd8#
- 1...Sf8
- 2.Qd8#
- 1...Sb5
- 2.Qb7#
- 1...Sd5
- 2.Qb7#
- 1...Sa6
- 2.Qb7#
- 1...Se8
- 2.Qb7#
- 1...Kxa8
- 1.Ba8!
Anticipated by 119885(1933)
This anticipates 144441(1998)
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 12
- REMOVED MATES = 0
- Sets
- S(b);OGATE::QAR1(D)
- Tries
- Try
- B(B);
- Vars
- S(a);N_GUARD::QAB1(D),XS(b)
- S(b);OGATE::QAR1(D)
- Refutation
- K(c);P_SPINS(b),S_FLIGHT
- Try
- B(B);
- Vars
- S(a);N_GUARD::QAR2(D)
- S(a);N_GUARD::QAR2(D),XS(a)
- S(b);OGATE::QAR1(D)
- Refutation
- S(a);XB(B)
- Try
- B(C);
- Vars
- S(b);OGATE::QAR1(D)
- Refutation
- S(b);
- Try
- B(C);
- Vars
- S(b);OGATE::QAR1(D)
- Refutation
- S(b);
- Try
- B(C);
- Vars
- S(b);OGATE::QAR1(D)
- Refutation
- S(b);
- Try
- B(C);
- Vars
- S(b);OGATE::QAR1(D)
- Refutation
- S(b);
- Try
- B(C);
- Vars
- S(b);OGATE::QAR1(D)
- Refutation
- S(b);XB(C)
- Try
- Q(D);XS(a)
- Vars
- S(b);N_GUARD::QAR(D),XS(b)
- Refutation
- S(b);XQ(D)
- Try
- Q(D);CHECK
- Vars
- S(a);N_GUARD,P_SPINS(a)::QAR2(D),XS(a)
- Refutation
- S(b);XQ(D)
- Try
- Q(D);P_PINS(b)
- Refutation
- K(c);N_SPINS(b),P-FLIGHT
- Try
- Q(D);
- Vars
- S(b);OGATE::QAR1(D)
- Refutation
- K(c);P-FLIGHT
- Try
- Q(D);
- Vars
- S(a);N_GUARD::QAB1(D),XS(b)
- S(b);OGATE::QAR1(D)
- Refutation
- K(c);P-FLIGHT
- Try
- Actual
- B(C);
- Vars
- K(c);P-FLIGHT,XB(C)::QAR2(D)
- S(b);SBLOCK,XB(C)::B(B)
- S(a);N_GUARD::QAR2(D)
- S(a);N_GUARD::QAR2(D),XS(a)
- S(b);OGATE::QAR1(D)
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).