MESON Chess Problem Database
Problem Display
PID: 174719 (k7/1bKp4/8/2B5/8/1P1Q4/8/8 w - - 0 1)
Lincoln, Robert A
Die Schwalbe, 2017
#2
4 + 3
SOLUTION
- SOUND
- Sets
- 1...Bh1
- 2.Qa6#
- 1...Bg2
- 2.Qa6#
- 1...Bf3
- 2.Qa6#
- 1...Be4
- 2.Qa6#
- 1...Bd5
- 2.Qa6#
- 2.Qxd5#
- 1...Ba6
- 2.Qxa6#
- 1...Bc6
- 2.Qa6#
- 1...Bh1
- Tries
- 1.Qd5?
- threat
- 2.Qxb7#
- 1...Bc6
- 2.Qg8#
- 1...Bxd5!
- threat
- 1.Qd6?
- 1...Bh1
- 2.Qf8#
- 2.Qa6#
- 1...Bg2
- 2.Qf8#
- 2.Qa6#
- 1...Bf3
- 2.Qf8#
- 2.Qa6#
- 1...Be4
- 2.Qf8#
- 2.Qa6#
- 1...Bd5
- 2.Qf8#
- 2.Qxd5#
- 2.Qa6#
- 1...Ba6
- 2.Qxa6#
- 1...Bc6
- 2.Qf8#
- 1...Bc8!
- 1...Bh1
- 1.Qxd7?
- 1...Bc8
- 2.Qxc8#
- 1...Bh1
- 2.Qa4#
- 2.Qc8#
- 2.Qe8#
- 2.Qd8#
- 1...Bg2
- 2.Qa4#
- 2.Qc8#
- 2.Qe8#
- 2.Qd8#
- 1...Bf3
- 2.Qa4#
- 2.Qc8#
- 2.Qe8#
- 2.Qd8#
- 1...Be4
- 2.Qa4#
- 2.Qc8#
- 2.Qe8#
- 2.Qd8#
- 1...Bd5
- 2.Qa4#
- 2.Qc8#
- 2.Qe8#
- 2.Qxd5#
- 2.Qd8#
- 1...Bc6
- 2.Qxc6#
- 2.Qc8#
- 2.Qd8#
- 1...Ba6!
- 1...Bc8
- 1.Qd5?
- Keys
- 1.Qb5!
- threat
- 2.Qxb7#
- 1...Bc8
- 2.Qb8#
- 1...Bh1
- 2.Qa4#
- 2.Qa6#
- 2.Qa5#
- 2.Qb8#
- 1...Bg2
- 2.Qa4#
- 2.Qa6#
- 2.Qa5#
- 2.Qb8#
- 1...Bf3
- 2.Qa4#
- 2.Qa6#
- 2.Qa5#
- 2.Qb8#
- 1...Be4
- 2.Qa4#
- 2.Qa6#
- 2.Qa5#
- 2.Qb8#
- 1...Bd5
- 2.Qa4#
- 2.Qa6#
- 2.Qa5#
- 2.Qb8#
- 1...Ba6
- 2.Qxa6#
- 2.Qb8#
- 1...Bc6
- 2.Qa6#
- 2.Qa5#
- 2.Qb8#
- threat
- 1.Qb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- B(a);N_GUARD::QAR2(B)
- B(a);N_GUARD::QAR2(B),XB(a)
- Tries
- Try
- Q(B);P_PINB(a)
- Threat
- QAB1(B),XB(a)
- Vars
- B(a);N_GUARD::QAR(B)
- Refutation
- B(a);N_SPINB(a),XQ(B)
- Try
- Q(B);
- Vars
- B(a);N_GUARD::QAR2(B),XB(a)
- B(a);N_GUARD::QAR(B)
- Refutation
- B(a);
- Try
- Q(B);XP(b)
- Vars
- B(a);N_GUARD::QAR2(B),XB(a)
- Refutation
- B(a);
- Try
- Actual
- Q(B);
- Threat
- QAB1(B),XB(a)
- Vars
- B(a);OGATE::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).