MESON Chess Problem Database
Problem Display
PID: 85753 (8/8/8/B7/3nQ3/3P1n2/1K6/1N1k4 w - - 0 1)
Speckmann, Werner
Die Schwalbe, 1979
#2
5 + 3
| 5454 | Near Snap | 2009 |
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Se1
- 2.Qxe1#
- 1...Sg1
- 2.Qe1#
- 1...Sd2
- 2.Sc3#
- 1...Sh2
- 2.Qe1#
- 1...Sh4
- 2.Qe1#
- 1...Se5
- 2.Qe1#
- 1...Sg5
- 2.Qe1#
- 1...Sc2
- 2.Qxf3#
- 1...Se2
- 2.Qa4#
- 1...Sb3
- 2.Qxf3#
- 1...Sb5
- 2.Qxf3#
- 1...Sf5
- 2.Qxf3#
- 1...Sc6
- 2.Qxf3#
- 1...Se6
- 2.Qxf3#
- 1...Se1
- Tries
- 1.Sa3?
- 1...Se1
- 2.Qxe1#
- 1...Sg1
- 2.Qe1#
- 1...Sh2
- 2.Qe1#
- 1...Sh4
- 2.Qe1#
- 1...Se5
- 2.Qe1#
- 1...Sg5
- 2.Qe1#
- 1...Sc2
- 2.Qxf3#
- 1...Se2
- 2.Qa4#
- 1...Sb3
- 2.Qxf3#
- 1...Sb5
- 2.Qxf3#
- 1...Sf5
- 2.Qxf3#
- 1...Sc6
- 2.Qxf3#
- 1...Se6
- 2.Qxf3#
- 1...Sd2!
- 1...Se1
- 1.Bc3?
- 1...Se1
- 2.Qxe1#
- 1...Sg1
- 2.Qe1#
- 1...Sh2
- 2.Qe1#
- 1...Sh4
- 2.Qe1#
- 1...Se5
- 2.Qe1#
- 1...Sg5
- 2.Qe1#
- 1...Sc2
- 2.Qxf3#
- 1...Se2
- 2.Qa4#
- 1...Sb3
- 2.Qxf3#
- 1...Sb5
- 2.Qxf3#
- 1...Sf5
- 2.Qxf3#
- 1...Sc6
- 2.Qxf3#
- 1...Se6
- 2.Qxf3#
- 1...Sd2!
- 1...Se1
- 1.Bb4?
- 1...Sd2
- 2.Sc3#
- 1...Se1
- 2.Qxe1#
- 1...Sg1
- 2.Qe1#
- 1...Sh2
- 2.Qe1#
- 1...Sh4
- 2.Qe1#
- 1...Se5
- 2.Qe1#
- 1...Sg5
- 2.Qe1#
- 1...Sc2
- 2.Qxf3#
- 1...Sb3
- 2.Qxf3#
- 1...Sb5
- 2.Qxf3#
- 1...Sf5
- 2.Qxf3#
- 1...Sc6
- 2.Qxf3#
- 1...Se6
- 2.Qxf3#
- 1...Se2!
- 1...Sd2
- 1.Qxf3+?
- 1...Se2
- 2.Qf1#
- 1...Sxf3!
- 1...Se2
- 1.Qe3?
- threat
- 2.Sc3#
- 1...Sb5
- 2.Qxf3#
- 1...Se2!
- threat
- 1.Qf4?
- 1...Sd2
- 2.Qxd2#
- 1...Se1
- 2.Sc3#
- 2.Qd2#
- 1...Sg1
- 2.Qd2#
- 2.Qf1#
- 1...Sh2
- 2.Qd2#
- 1...Sh4
- 2.Qd2#
- 2.Qf1#
- 1...Se5
- 2.Qd2#
- 2.Qf1#
- 1...Sg5
- 2.Qd2#
- 2.Qf1#
- 1...Sc2
- 2.Qxf3#
- 1...Se2
- 2.Qa4#
- 1...Sb3
- 2.Qxf3#
- 1...Sb5
- 2.Qxf3#
- 1...Sf5
- 2.Qxf3#
- 1...Sc6
- 2.Qxf3#
- 1...Se6
- 2.Qxf3#
- 1...Ke2!
- 1...Sd2
- 1.Qg4?
- 1...Sc2
- 2.Qxf3#
- 1...Se2
- 2.Qa4#
- 1...Sb3
- 2.Qxf3#
- 1...Sb5
- 2.Qxf3#
- 1...Sf5
- 2.Qxf3#
- 1...Sc6
- 2.Qxf3#
- 1...Se6
- 2.Qxf3#
- 1...Ke2!
- 1...Sc2
- 1.Sa3?
- Keys
- 1.Bd2!
- 1...Sxd2
- 2.Sc3#
- 1...Se1
- 2.Qxe1#
- 1...Sg1
- 2.Qe1#
- 1...Sh2
- 2.Qe1#
- 1...Sh4
- 2.Qe1#
- 1...Se5
- 2.Qe1#
- 1...Sg5
- 2.Qe1#
- 1...Sc2
- 2.Qxf3#
- 1...Se2
- 2.Qa4#
- 1...Sb3
- 2.Qxf3#
- 1...Sb5
- 2.Qxf3#
- 1...Sf5
- 2.Qxf3#
- 1...Sc6
- 2.Qxf3#
- 1...Se6
- 2.Qxf3#
- 1...Sxd2
- 1.Bd2!
Anticipated by 108019(1954)
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- S(b);N_GUARD::QAR1(D),XS(b)
- S(b);N_GUARD::QAR1(D)
- S(b);SBLOCK::S(A)
- S(c);N_GUARD::QAB(D),XS(b)
- S(c);OGATE,SBLOCK::QAB(D)
- Tries
- Try
- S(A);
- Vars
- S(b);N_GUARD::QAR1(D),XS(b)
- S(b);N_GUARD::QAR1(D)
- S(c);N_GUARD::QAB(D),XS(b)
- S(c);OGATE,SBLOCK::QAB(D)
- Refutation
- S(b);
- Try
- B(E);
- Vars
- S(b);N_GUARD::QAR1(D),XS(b)
- S(b);N_GUARD::QAR1(D)
- S(c);N_GUARD::QAB(D),XS(b)
- S(c);OGATE,SBLOCK::QAB(D)
- Refutation
- S(b);
- Try
- B(E);
- Vars
- S(b);SBLOCK::S(A)
- S(b);N_GUARD::QAR1(D),XS(b)
- S(b);N_GUARD::QAR1(D)
- S(c);N_GUARD::QAB(D),XS(b)
- Refutation
- S(c);
- Try
- Q(D);CHECK,XS(b)
- Vars
- S(c);P_SPINS(c)::QAR2(D)
- Refutation
- S(c);XQ(D)
- Try
- Q(D);
- Threat
- S(A)
- Vars
- S(c);N_GUARD::QAB(D),XS(b)
- Refutation
- S(c);
- Try
- Q(D);
- Vars
- S(b);N_GUARD::QAR1(D),XS(b)
- S(b);N_GUARD::QAR1(D)
- S(c);N_GUARD::QAB(D),XS(b)
- S(c);OGATE,SBLOCK::QAB(D)
- Refutation
- K(a);S_FLIGHT
- Try
- Q(D);P_PINS(b)
- Vars
- S(c);N_GUARD::QAB(D),XS(b)
- S(c);N_SPINS(b),OGATE,SBLOCK::QAB(D)
- Refutation
- K(a);S_FLIGHT
- Try
- Actual
- B(E);
- Vars
- S(b);SBLOCK,XB(E)::S(A)
- S(b);N_GUARD::QAR1(D),XS(b)
- S(b);N_GUARD::QAR1(D)
- S(c);N_GUARD::QAB(D),XS(b)
- S(c);OGATE,SBLOCK::QAB(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).