MESON Chess Problem Database
Problem Display
PID: 79939 (1Q6/4n3/8/8/2N5/8/2pp1K2/3k4 w - - 0 1)
Auhagen, Ulrich Otto Ferdinand
Die Schwalbe, 1982
#2
3 + 4
SOLUTION
- SOUND
- Sets
- 1...c1Q
- 2.Se3#
- 1...c1S
- 2.Se3#
- 1...c1B
- 2.Se3#
- 2.Qb3#
- 1...c1R
- 2.Se3#
- 1...c1Q
- Tries
- 1.Qh2?
- threat
- 2.Qg1#
- 2.Qh1#
- 1...c1Q
- 2.Se3#
- 1...c1S
- 2.Se3#
- 1...c1B
- 2.Se3#
- 1...c1R
- 2.Se3#
- 1...Kc1!
- threat
- 1.Qg3?
- threat
- 2.Qg1#
- 1...c1Q
- 2.Se3#
- 1...c1S
- 2.Se3#
- 1...c1B
- 2.Se3#
- 2.Qb3#
- 1...c1R
- 2.Se3#
- 1...Kc1!
- threat
- 1.Qf4?
- threat
- 2.Qxd2#
- 1...c1Q
- 2.Se3#
- 1...c1B
- 2.Se3#
- 1...Kc1!
- threat
- 1.Qb4?
- threat
- 2.Qxd2#
- 1...c1Q
- 2.Se3#
- 1...c1B
- 2.Se3#
- 2.Qb3#
- 2.Qa4#
- 1...Kc1!
- threat
- 1.Qh2?
- Keys
- 1.Qh8!
- threat
- 2.Qh1#
- 1...Kc1
- 2.Qa1#
- 1...c1Q
- 2.Se3#
- 1...c1S
- 2.Se3#
- 1...c1B
- 2.Se3#
- 1...c1R
- 2.Se3#
- threat
- 1.Qh8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- P(b);SBLOCK::S(B)
- Tries
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- P(b);SBLOCK::S(B)
- Refutation
- K(a);P-FLIGHT
- Try
- Q(C);
- Threat
- QAR(C)
- Vars
- P(b);SBLOCK::S(B)
- Refutation
- K(a);P-FLIGHT
- Try
- Q(C);
- Threat
- QAR1(C),XP(c)
- Vars
- P(b);SBLOCK::S(B)
- Refutation
- K(a);P-FLIGHT,P_SPINP(c)
- Try
- Q(C);
- Threat
- QAR1(C),XP(c)
- Vars
- P(b);SBLOCK::S(B)
- Refutation
- K(a);P-FLIGHT
- Try
- Actual
- Q(C);
- Threat
- QAR(C)
- Vars
- K(a);P-FLIGHT::QAR2(C)
- P(b);SBLOCK::S(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).