MESON Chess Problem Database
Problem Display
PID: 189959 (8/8/8/p7/qn6/NnQ5/1P1N4/kB4K1 w - - 0 1)
Cumpe, Josef
Pittsburgh Leader, 1913
#2
6 + 5
| 5454 | Near Snap | 2019 |
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Qb5
- 2.Sxb3#
- 1...Qc6
- 2.Sxb3#
- 1...Qd7
- 2.Sxb3#
- 1...Qe8
- 2.Sxb3#
- 1...Qxa3
- 2.bxa3#
- 1...Sc1
- 2.b3#
- 1...Sxd2
- 2.b3#
- 1...Sd4
- 2.b3#
- 1...Sc5
- 2.b3#
- 1...Sa2
- 2.Sc2#
- 1...Sc2
- 2.Sxc2#
- 1...Sd3
- 2.Sc2#
- 1...Sd5
- 2.Sc2#
- 1...Sa6
- 2.Sc2#
- 1...Sc6
- 2.Sc2#
- 1...Qb5
- Tries
- 1.Kh1?
- 1...Qxa3
- 2.bxa3#
- 1...Sxd2
- 2.b3#
- 1...Qb5
- 2.Sxb3#
- 1...Qd7
- 2.Sxb3#
- 1...Qe8
- 2.Sxb3#
- 1...Sc1
- 2.b3#
- 1...Sd4
- 2.b3#
- 1...Sc5
- 2.b3#
- 1...Sa2
- 2.Sc2#
- 1...Sc2
- 2.Sxc2#
- 1...Sd3
- 2.Sc2#
- 1...Sd5
- 2.Sc2#
- 1...Sa6
- 2.Sc2#
- 1...Sc6
- 2.Sc2#
- 1...Qc6+!
- 1...Qxa3
- 1.Kf2?
- 1...Qxa3
- 2.bxa3#
- 1...Sxd2
- 2.b3#
- 1...Qb5
- 2.Sxb3#
- 1...Qc6
- 2.Sxb3#
- 1...Qd7
- 2.Sxb3#
- 1...Qe8
- 2.Sxb3#
- 1...Sc1
- 2.b3#
- 1...Sd4
- 2.b3#
- 1...Sc5
- 2.b3#
- 1...Sa2
- 2.Sc2#
- 1...Sc2
- 2.Sxc2#
- 1...Sd5
- 2.Sc2#
- 1...Sa6
- 2.Sc2#
- 1...Sc6
- 2.Sc2#
- 1...Sd3+!
- 1...Qxa3
- 1.Kg2?
- 1...Qxa3
- 2.bxa3#
- 1...Sxd2
- 2.b3#
- 1...Qb5
- 2.Sxb3#
- 1...Qd7
- 2.Sxb3#
- 1...Qe8
- 2.Sxb3#
- 1...Sc1
- 2.b3#
- 1...Sd4
- 2.b3#
- 1...Sc5
- 2.b3#
- 1...Sa2
- 2.Sc2#
- 1...Sc2
- 2.Sxc2#
- 1...Sd3
- 2.Sc2#
- 1...Sd5
- 2.Sc2#
- 1...Sa6
- 2.Sc2#
- 1...Sc6
- 2.Sc2#
- 1...Qc6+!
- 1...Qxa3
- 1.Kh1?
- Keys
- 1.Kh2!
- 1...Qxa3
- 2.bxa3#
- 1...Sxd2
- 2.b3#
- 1...Qb5
- 2.Sxb3#
- 1...Qc6
- 2.Sxb3#
- 1...Qd7
- 2.Sxb3#
- 1...Qe8
- 2.Sxb3#
- 1...Sc1
- 2.b3#
- 1...Sd4
- 2.b3#
- 1...Sc5
- 2.b3#
- 1...Sa2
- 2.Sc2#
- 1...Sc2
- 2.Sxc2#
- 1...Sd3
- 2.Sc2#
- 1...Sd5
- 2.Sc2#
- 1...Sa6
- 2.Sc2#
- 1...Sc6
- 2.Sc2#
- 1...Qxa3
- 1.Kh2!
This anticipates 109482(1986)
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- Q(c);N_GUARD::S(D),XS(b)
- Q(c);OGATE,XS(E)::QAB(F)+P(C),XQ(c)
- S(b);OGATE::QAB(F)+P(C)
- S(b);OGATE,XS(D)::QAB(F)+P(C)
- S(d);N_GUARD::S(E)
- S(d);N_GUARD::S(E),XS(d)
- Tries
- Try
- K(B);P-FLIGHT
- Vars
- Q(c);OGATE,XS(E)::QAB(F)+P(C),XQ(c)
- S(b);OGATE,XS(D)::QAB(F)+P(C)
- Q(c);N_GUARD::S(D),XS(b)
- S(b);OGATE::QAB(F)+P(C)
- S(d);N_GUARD::S(E)
- S(d);N_GUARD::S(E),XS(d)
- Refutation
- Q(c);CHECK
- Try
- K(B);S_FLIGHT
- Vars
- Q(c);OGATE,XS(E)::QAB(F)+P(C),XQ(c)
- S(b);OGATE,XS(D)::QAB(F)+P(C)
- Q(c);N_GUARD::S(D),XS(b)
- S(b);OGATE::QAB(F)+P(C)
- S(d);N_GUARD::S(E)
- S(d);N_GUARD::S(E),XS(d)
- Refutation
- S(d);CHECK
- Try
- K(B);P-FLIGHT
- Vars
- Q(c);OGATE,XS(E)::QAB(F)+P(C),XQ(c)
- S(b);OGATE,XS(D)::QAB(F)+P(C)
- Q(c);N_GUARD::S(D),XS(b)
- S(b);OGATE::QAB(F)+P(C)
- S(d);N_GUARD::S(E)
- S(d);N_GUARD::S(E),XS(d)
- Refutation
- Q(c);CHECK
- Try
- Actual
- K(B);S_FLIGHT
- Vars
- Q(c);OGATE,XS(E)::QAB(F)+P(C),XQ(c)
- S(b);OGATE,XS(D)::QAB(F)+P(C)
- Q(c);N_GUARD::S(D),XS(b)
- S(b);OGATE::QAB(F)+P(C)
- S(d);N_GUARD::S(E)
- S(d);N_GUARD::S(E),XS(d)
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).