MESON Chess Problem Database
Problem Display
PID: 220225 (B7/3Q4/6K1/8/8/6p1/4p2k/8 w - - 0 1)
Torngren, Pehr Hendrik
Die Schwalbe, 1928
#2
3 + 3
SOLUTION
- SOUND
- Tries
- 1.Qh3+?
- 1...Kg1
- 2.Qg2#
- 1...Kxh3!
- 1...Kg1
- 1.Qc6?
- threat
- 2.Qh1#
- 2.Qg2#
- 1...Kg1
- 2.Qg2#
- 1...g2
- 2.Qxg2#
- 1...e1Q
- 2.Qg2#
- 1...e1S
- 2.Qh1#
- 1...e1R
- 2.Qg2#
- 1...Kh3!
- threat
- 1.Qb7?
- threat
- 2.Qh1#
- 2.Qg2#
- 1...Kg1
- 2.Qg2#
- 1...g2
- 2.Qxg2#
- 1...e1Q
- 2.Qg2#
- 1...e1S
- 2.Qh1#
- 1...e1R
- 2.Qg2#
- 1...Kh3!
- threat
- 1.Qh3+?
- Keys
- 1.Qd5!
- threat
- 2.Qh1#
- 2.Qg2#
- 1...Kg1
- 2.Qg2#
- 1...Kh3
- 2.Qh5#
- 1...g2
- 2.Qxg2#
- 1...e1Q
- 2.Qg2#
- 1...e1S
- 2.Qh1#
- 1...e1R
- 2.Qg2#
- threat
- 1.Qd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- Tries
- Try
- Q(B);CHECK
- Vars
- K(b);S_FLIGHT::QAR1(B)
- Refutation
- K(b);P-FLIGHT,XQ(B)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- K(b);S_FLIGHT::QAR1(B)
- P(c);::QAR1(B),XP(c)
- P(a);::QAR1(B)
- Refutation
- K(b);P-FLIGHT
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- K(b);S_FLIGHT::QAR1(B)
- P(c);::QAR1(B),XP(c)
- P(a);::QAR1(B)
- Refutation
- K(b);P-FLIGHT
- Try
- Actual
- Q(B);
- Threat
- DUALS(2)
- Vars
- K(b);S_FLIGHT::QAR1(B)
- K(b);P-FLIGHT::QAR2(B)
- P(c);::QAR1(B),XP(c)
- P(a);::QAR1(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).