MESON Chess Problem Database
Problem Display
PID: 206345 (6N1/8/N5p1/3b2p1/3k2P1/8/1P6/1B3QK1 w - - 0 1)
Strom, Gustav
Schackvarlden, 1925
#2
7 + 4
| 6490 | yacpdb | 2020 |
| 5454 | Near Snap | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ke3
- 2.Qf2#
- 1...Ke5
- 2.Qf6#
- 1...Ke3
- Tries
- 1.Qf2+?
- 1...Ke5
- 2.Qf6#
- 1...Kc4!
- 1...Ke5
- 1.Qf4+?
- 1...Be4
- 2.Qxe4#
- 1...gxf4!
- 1...Be4
- 1.Qf5?
- 1...Ke3
- 2.Qf2#
- 1...Kc4
- 2.Qd3#
- 1...Bxg8
- 2.Qe4#
- 2.Qc5#
- 1...Bh1
- 2.Qc5#
- 1...Ba2
- 2.Qe4#
- 2.Qc5#
- 1...Bg2
- 2.Qc5#
- 1...Bb3
- 2.Qe4#
- 2.Qc5#
- 1...Bf3
- 2.Qc5#
- 1...Bc4
- 2.Qe4#
- 2.Qc5#
- 1...Be4
- 2.Qxe4#
- 2.Qc5#
- 1...Bc6
- 2.Qc5#
- 1...Be6
- 2.Qe4#
- 2.Qc5#
- 1...Bb7
- 2.Qc5#
- 1...Bf7
- 2.Qe4#
- 2.Qc5#
- 1...Ba8
- 2.Qc5#
- 1...gxf5!
- 1...Ke3
- 1.Qf6+?
- 1...Ke3
- 2.Qf2#
- 1...Kc4!
- 1...Ke3
- 1.Qf2+?
- Keys
- 1.Qf8!
- 1...Ke3
- 2.Qf2#
- 1...Kc4
- 2.Qb4#
- 1...Ke5
- 2.Qf6#
- 1...Bxg8
- 2.Qc5#
- 1...Bh1
- 2.Qc5#
- 1...Ba2
- 2.Qc5#
- 1...Bg2
- 2.Qc5#
- 1...Bb3
- 2.Qc5#
- 1...Bf3
- 2.Qc5#
- 1...Be4
- 2.Qc5#
- 1...Bc6
- 2.Qc5#
- 1...Be6
- 2.Qc5#
- 1...Bb7
- 2.Qc5#
- 1...Bf7
- 2.Qc5#
- 1...Ba8
- 2.Qc5#
- 1...Bc4
- 2.Qc5#
- 1...Ke3
- 1.Qf8!
This anticipates 178127(1940), 211723(1986), 234621(2003)
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 14
- REMOVED MATES = 0
- Sets
- K(a);S_FLIGHT::QAB1(B)
- Tries
- Try
- Q(B);CHECK
- Vars
- K(a);S_FLIGHT::QAB1(B)
- Refutation
- K(a);P-FLIGHT
- Try
- Q(B);CHECK
- Vars
- B(b);N_GUARD,P_SPINB(b)::QAR1(B),XB(b)
- Refutation
- P(c);XQ(B)
- Try
- Q(B);
- Vars
- K(a);S_FLIGHT::QAB1(B)
- K(a);P-FLIGHT::QAB1(B)
- B(b);OGATE::QAB1(B)
- Refutation
- P(d);XQ(B)
- Try
- Q(B);CHECK
- Vars
- K(a);S_FLIGHT::QAB1(B)
- Refutation
- K(a);P-FLIGHT
- Try
- Actual
- Q(B);
- Vars
- K(a);S_FLIGHT::QAB1(B)
- K(a);P-FLIGHT::QAR1(B)
- B(b);XS(G)::QAB1(B)
- B(b);::QAB1(B)
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).