MESON Chess Problem Database
Problem Display
PID: 195301 (8/7B/3n4/2p5/K1NN1nR1/2k5/8/5Q2 w - - 0 1)
Bottger, FBH
Haagsche Courant, 1915
#2
6 + 4
| 15601 | Albrecht-Leiss-Degener Collection | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Kxd4
- 2.Qd3#
- 1...Se2
- 2.Sxe2#
- 1...Sg2
- 2.Se2#
- 2.Qd3#
- 2.Qc1#
- 1...Sd3
- 2.Qxd3#
- 1...Sh3
- 2.Se2#
- 2.Qd3#
- 2.Qc1#
- 1...Sd5
- 2.Se2#
- 2.Qd3#
- 2.Qc1#
- 1...Sh5
- 2.Se2#
- 2.Qd3#
- 2.Qc1#
- 1...Se6
- 2.Se2#
- 2.Qd3#
- 2.Qc1#
- 1...Sb5
- 2.Sxb5#
- 1...Sb7
- 2.Sb5#
- 1...Sf7
- 2.Sb5#
- 1...Sc8
- 2.Sb5#
- 1...Se8
- 2.Sb5#
- 1...cxd4
- 2.Qc1#
- 1...Kxd4
- Tries
- 1.Se2+?
- 1...Sxe2
- 2.Qa1#
- 2.Qe1#
- 2.Qf3#
- 1...Kxc4!
- 1...Sxe2
- 1.Bb1?
- 1...Kxd4
- 2.Qd3#
- 1...cxd4
- 2.Qc1#
- 1...Se2
- 2.Sxe2#
- 1...Sg2
- 2.Se2#
- 2.Qd3#
- 2.Qc1#
- 1...Sd3
- 2.Se2#
- 2.Qxd3#
- 1...Sh3
- 2.Se2#
- 2.Qd3#
- 2.Qc1#
- 1...Sd5
- 2.Se2#
- 2.Qd3#
- 2.Qc1#
- 1...Sh5
- 2.Se2#
- 2.Qd3#
- 2.Qc1#
- 1...Se6
- 2.Se2#
- 2.Qd3#
- 2.Qc1#
- 1...Sg6
- 2.Se2#
- 2.Qd3#
- 2.Qc1#
- 1...Se4
- 2.Sb5#
- 1...Sb5
- 2.Sxb5#
- 1...Sf5
- 2.Sb5#
- 1...Sb7
- 2.Sb5#
- 1...Sf7
- 2.Sb5#
- 1...Sc8
- 2.Sb5#
- 1...Se8
- 2.Sb5#
- 1...Sxc4!
- 1...Kxd4
- 1.Rg3+?
- 1...Sd3
- 2.Qxd3#
- 1...Kxd4!
- 1...Sd3
- 1.Qh3+?
- 1...Kxd4
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sxh3
- 2.Se2#
- 1...Kxc4!
- 1...Kxd4
- 1.Qf3+?
- 1...Kxd4
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Kxc4!
- 1...Kxd4
- 1.Se2+?
- Keys
- 1.Qe2!
- 1...Kxd4
- 2.Qd3#
- 1...Sxe2
- 2.Sxe2#
- 1...Sxc4
- 2.Sb5#
- 1...cxd4
- 2.Qc2#
- 1...Sg6
- 2.Qc2#
- 1...Sg2
- 2.Qd3#
- 2.Qc2#
- 1...Sd3
- 2.Qxd3#
- 2.Qc2#
- 1...Sh3
- 2.Qd3#
- 2.Qc2#
- 1...Sd5
- 2.Qd3#
- 2.Qc2#
- 1...Sh5
- 2.Qd3#
- 2.Qc2#
- 1...Se6
- 2.Qd3#
- 2.Qc2#
- 1...Se4
- 2.Sb5#
- 1...Sb5
- 2.Sxb5#
- 1...Sf5
- 2.Sb5#
- 1...Sb7
- 2.Sb5#
- 1...Sf7
- 2.Sb5#
- 1...Sc8
- 2.Sb5#
- 1...Se8
- 2.Sb5#
- 1...Kxd4
- 1.Qe2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- K(a);P_SPINS(b),S_FLIGHT,XS(D)::QAR1(A)
- S(b);N_GUARD::S(D),XS(b)
- S(b);N_GUARD::QAR1(A),XS(b)
- S(d);N_GUARD::S(D),XS(d)
- S(d);N_GUARD::S(D)
- P(c);SBLOCK,XS(D)::QAR2(A)
- Tries
- Try
- S(D);CHECK
- Refutation
- K(a);P-FLIGHT,P_SPINS(b),XS(C)
- Try
- B(F);
- Vars
- K(a);P_SPINS(b),S_FLIGHT,XS(D)::QAR1(A)
- P(c);SBLOCK,XS(D)::QAR2(A)
- S(b);N_GUARD::S(D),XS(b)
- S(d);N_GUARD::S(D)
- S(d);N_GUARD::S(D),XS(d)
- Refutation
- S(d);XS(C)
- Try
- R(E);CHECK
- Vars
- S(b);N_GUARD,P_SPINS(b)::QAR1(A),XS(b)
- Refutation
- K(a);S_FLIGHT,XS(D)
- Try
- Q(A);CHECK
- Vars
- K(a);P_SPINS(b),S_FLIGHT,XS(D)::QAR1(A)
- S(b);N_GUARD,P_SPINS(b)::QAR1(A),XS(b)
- S(b);XQ(A)::S(D)
- Refutation
- K(a);P-FLIGHT,XS(C)
- Try
- Q(A);CHECK
- Vars
- K(a);P_SPINS(b),S_FLIGHT,XS(D)::QAR1(A)
- S(b);N_GUARD,P_SPINS(b)::QAR1(A),XS(b)
- Refutation
- K(a);P-FLIGHT,XS(C)
- Try
- Actual
- Q(A);
- Vars
- K(a);P_SPINS(b),S_FLIGHT,XS(D)::QAR1(A)
- S(b);XQ(A)::S(D),XS(b)
- S(d);N_GUARD,XS(C)::S(D)
- P(c);SBLOCK,XS(D)::QAR1(A)
- S(b);::QAR1(A)
- S(d);N_GUARD::S(D)
- S(d);N_GUARD::S(D),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).