MESON Chess Problem Database
Problem Display
PID: 178127 (8/8/4Q3/4N3/3bk3/8/7B/2N4K w - - 0 1)
Speckmann, Werner
Schach-Echo, 1940
#2
5 + 2
| 6490 | yacpdb | 2018 |
| 5454 | Near Snap | 2021 |
SOLUTION
- SOUND
- Tries
- 1.Sed3+?
- 1...Kf3
- 2.Qe2#
- 1...Be5!
- 1...Kf3
- 1.Sf3+?
- 1...Kxf3
- 2.Qe2#
- 1...Be5!
- 1...Kxf3
- 1.Sc4+?
- 1...Kf3
- 2.Qf5#
- 2.Qe2#
- 1...Be5!
- 1...Kf3
- 1.Sg4+?
- 1...Kf3
- 2.Qf5#
- 2.Qe2#
- 1...Be5!
- 1...Kf3
- 1.Sc6+?
- 1...Kf3
- 2.Qe2#
- 1...Be5!
- 1...Kf3
- 1.Sg6+?
- 1...Kf3
- 2.Qe2#
- 1...Be5!
- 1...Kf3
- 1.Sd7+?
- 1...Kf3
- 2.Qe2#
- 1...Be5!
- 1...Kf3
- 1.Sf7+?
- 1...Kf3
- 2.Qe2#
- 1...Be5!
- 1...Kf3
- 1.Qc4?
- 1...Ke3
- 2.Qe2#
- 1...Kf5!
- 1...Ke3
- 1.Qg4+?
- 1...Ke3
- 2.Qe2#
- 2.Qf4#
- 1...Kd5!
- 1...Ke3
- 1.Qd7?
- 1...Bxe5
- 2.Qd3#
- 1...Ba1
- 2.Qd3#
- 1...Bg1
- 2.Qd3#
- 1...Bb2
- 2.Qd3#
- 1...Bf2
- 2.Qd3#
- 1...Bc3
- 2.Qd3#
- 1...Be3
- 2.Qd3#
- 1...Bc5
- 2.Qd3#
- 1...Bb6
- 2.Qd3#
- 1...Ba7
- 2.Qd3#
- 1...Ke3!
- 1...Bxe5
- 1.Qc6+?
- 1...Kf5
- 2.Qg6#
- 1...Ke3!
- 1...Kf5
- 1.Qd6?
- 1...Kf5
- 2.Qg6#
- 1...Bxe5
- 2.Qd3#
- 1...Ba1
- 2.Qd3#
- 1...Bg1
- 2.Qd3#
- 1...Bb2
- 2.Qd3#
- 1...Bf2
- 2.Qd3#
- 1...Bc3
- 2.Qd3#
- 1...Be3
- 2.Qd3#
- 1...Bc5
- 2.Qd3#
- 1...Bb6
- 2.Qd3#
- 1...Ba7
- 2.Qd3#
- 1...Ke3!
- 1...Kf5
- 1.Qg6+?
- 1...Kd5
- 2.Qc6#
- 1...Ke3!
- 1...Kd5
- 1.Sed3+?
- Keys
- 1.Qa6!
- 1...Ke3
- 2.Qe2#
- 1...Kd5
- 2.Qc6#
- 1...Kf5
- 2.Qg6#
- 1...Bxe5
- 2.Qd3#
- 1...Ba1
- 2.Qd3#
- 1...Bg1
- 2.Qd3#
- 1...Bb2
- 2.Qd3#
- 1...Bf2
- 2.Qd3#
- 1...Bc3
- 2.Qd3#
- 1...Bc5
- 2.Qd3#
- 1...Bb6
- 2.Qd3#
- 1...Ba7
- 2.Qd3#
- 1...Be3
- 2.Qd3#
- 1...Ke3
- 1.Qa6!
Anticipated by 206345(1925)
This anticipates 211723(1986), 234621(2003)
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 13
- REMOVED MATES = 0
- Sets
- Tries
- Try
- S(D);CHECK
- Vars
- K(b);OGATE,S_FLIGHT::QAB1(E)
- Refutation
- B(a);P_SPINB(a)
- Try
- S(D);CHECK
- Vars
- K(b);OGATE,S_FLIGHT,XS(D)::QAB1(E)
- Refutation
- B(a);P_SPINB(a)
- Try
- S(D);CHECK
- Refutation
- B(a);P_SPINB(a)
- Try
- S(D);CHECK
- Refutation
- B(a);P_SPINB(a)
- Try
- S(D);CHECK
- Vars
- K(b);OGATE,S_FLIGHT::QAB1(E)
- Refutation
- B(a);P_SPINB(a)
- Try
- S(D);CHECK
- Vars
- K(b);OGATE,S_FLIGHT::QAB1(E)
- Refutation
- B(a);P_SPINB(a)
- Try
- S(D);CHECK
- Vars
- K(b);OGATE,S_FLIGHT::QAB1(E)
- Refutation
- B(a);P_SPINB(a)
- Try
- S(D);CHECK
- Vars
- K(b);OGATE,S_FLIGHT::QAB1(E)
- Refutation
- B(a);P_SPINB(a)
- Try
- Q(E);P_PINB(a)
- Vars
- K(b);N_SPINB(a),P-FLIGHT::QAR1(E)
- Refutation
- K(b);N_SPINB(a),S_FLIGHT
- Try
- Q(E);CHECK
- Refutation
- K(b);S_FLIGHT
- Try
- Q(E);
- Vars
- B(a);OGATE,XS(D)::QAB1(E)
- B(a);OGATE::QAB1(E)
- Refutation
- K(b);P-FLIGHT
- Try
- Q(E);CHECK
- Vars
- K(b);S_FLIGHT::QAB1(E)
- Refutation
- K(b);P-FLIGHT
- Try
- Q(E);
- Vars
- K(b);S_FLIGHT::QAB1(E)
- B(a);OGATE,XS(D)::QAB1(E)
- B(a);OGATE::QAB1(E)
- Refutation
- K(b);P-FLIGHT
- Try
- Q(E);CHECK
- Vars
- K(b);S_FLIGHT::QAB1(E)
- Refutation
- K(b);P-FLIGHT
- Try
- Actual
- Q(E);
- Vars
- K(b);P-FLIGHT::QAR1(E)
- K(b);S_FLIGHT::QAB1(E)
- B(a);XS(D)::QAB1(E)
- B(a);::QAB1(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).