MESON Chess Problem Database
Problem Display
PID: 227571 (8/4p3/4BpK1/1pN2pP1/1Pbk1P2/1P1p3Q/3P4/3n4 w - - 0 1)
Henke, Walter
3rd HM., Arbeiter Schachzeitung, 1926
#2
9 + 8
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bxb3
- 2.Qxd3#
- 1...Bd5
- 2.Qxd3#
- 1...Bxe6
- 2.Qxd3#
- 1...Sb2
- 2.Qe3#
- 1...Sf2
- 2.Qe3#
- 1...Sc3
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...fxg5
- 2.Qh8#
- 1...Bxb3
- Tries
- 1.Kxf5?
- 1...Se3+
- 2.Qxe3#
- 1...Bxb3
- 2.Sxb3#
- 2.Qxd3#
- 1...fxg5
- 2.Qh8#
- 1...Bd5
- 2.Qxd3#
- 1...Sb2
- 2.Qe3#
- 1...Sf2
- 2.Qe3#
- 1...Sc3
- 2.Qe3#
- 1...Bxe6+!
- 1...Se3+
- 1.Kh5?
- 1...Bxb3
- 2.Qxd3#
- 1...Bxe6
- 2.Qxd3#
- 1...Bd5
- 2.Qxd3#
- 1...Sb2
- 2.Qe3#
- 1...Sf2
- 2.Qe3#
- 1...Sc3
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...fxg5!
- 1...Bxb3
- 1.Kh6?
- 1...Bxb3
- 2.Qxd3#
- 1...Bxe6
- 2.Qxd3#
- 1...Bd5
- 2.Qxd3#
- 1...Sb2
- 2.Qe3#
- 1...Sf2
- 2.Qe3#
- 1...Sc3
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...fxg5!
- 1...Bxb3
- 1.Kf7?
- 1...Bxb3
- 2.Qxd3#
- 1...fxg5
- 2.Qh8#
- 1...Bd5
- 2.Qxd3#
- 1...Sb2
- 2.Qe3#
- 1...Sf2
- 2.Qe3#
- 1...Sc3
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Bxe6+!
- 1...Bxb3
- 1.Kg7?
- 1...Bxb3
- 2.Qxd3#
- 1...Bxe6
- 2.Qxd3#
- 1...Bd5
- 2.Qxd3#
- 1...Sb2
- 2.Qe3#
- 1...Sf2
- 2.Qe3#
- 1...Sc3
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...fxg5!
- 1...Bxb3
- 1.Kh7?
- 1...Bxb3
- 2.Qxd3#
- 1...Bxe6
- 2.Qxd3#
- 1...Bd5
- 2.Qxd3#
- 1...Sb2
- 2.Qe3#
- 1...Sf2
- 2.Qe3#
- 1...Sc3
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...fxg5!
- 1...Bxb3
- 1.Bxc4?
- threat
- 2.Qxd3#
- 1...Sb2
- 2.Qe3#
- 1...Sf2
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...bxc4!
- threat
- 1.Qf1?
- 1...Bxb3
- 2.Qxd3#
- 1...Bxe6
- 2.Qxd3#
- 1...Bd5
- 2.Qxd3#
- 1...Sb2
- 2.Qg1#
- 2.Qf2#
- 1...Sf2
- 2.Qa1#
- 2.Qxf2#
- 1...Sc3
- 2.Qg1#
- 2.Qf2#
- 1...Se3
- 2.Qa1#
- 1...fxg5!
- 1...Bxb3
- 1.Qf3?
- 1...Bxb3
- 2.Sxb3#
- 2.Qxd3#
- 1...Bxe6
- 2.Sxe6#
- 2.Qxd3#
- 1...Bd5
- 2.Qxd5#
- 2.Qxd3#
- 1...Sb2
- 2.Qf2#
- 2.Qe3#
- 1...Sf2
- 2.Qxf2#
- 2.Qe3#
- 1...Sc3
- 2.Qf2#
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...fxg5!
- 1...Bxb3
- 1.Qg3?
- 1...Bxb3
- 2.Qxd3#
- 1...Bxe6
- 2.Qxd3#
- 1...Bd5
- 2.Qxd3#
- 1...Sb2
- 2.Qf2#
- 2.Qg1#
- 2.Qe3#
- 1...Sf2
- 2.Qxf2#
- 2.Qe3#
- 1...Sc3
- 2.Qf2#
- 2.Qg1#
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...fxg5!
- 1...Bxb3
- 1.bxc4?
- threat
- 2.Qxd3#
- 1...Sb2
- 2.Qe3#
- 1...Sf2
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...bxc4!
- threat
- 1.gxf6?
- 1...Bxb3
- 2.Qxd3#
- 1...Bxe6
- 2.Qxd3#
- 1...Bd5
- 2.Qxd3#
- 1...Sb2
- 2.Qe3#
- 1...Sf2
- 2.Qe3#
- 1...Sc3
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...exf6!
- 1...Bxb3
- 1.Kxf5?
- Keys
- 1.Qh1!
- 1...Bxb3
- 2.Sxb3#
- 1...Bxe6
- 2.Sxe6#
- 1...fxg5
- 2.Qh8#
- 1...Bd5
- 2.Qxd5#
- 1...Sb2
- 2.Qg1#
- 1...Sf2
- 2.Qa1#
- 1...Sc3
- 2.Qg1#
- 1...Se3
- 2.Qa1#
- 1...Bxb3
- 1.Qh1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 7
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(c);N_GUARD,XP(B)::QAR1(C),XP(b)
- B(c);N_GUARD::QAR1(C),XP(b)
- B(c);N_GUARD,XB(H)::QAR1(C),XP(b)
- S(a);N_GUARD::QAB1(C)
- S(a);N_GUARD::QAB1(C),XS(a)
- P(g);OGATEB,XP(G)::QAB(C)
- Tries
- Try
- K(I);S_FLIGHT,XP(f)
- Vars
- S(a);CHECK,N_GUARD::QAB1(C),XS(a)
- P(g);OGATEB,XP(G)::QAB(C)
- B(c);N_GUARD::QAR1(C),XP(b)
- S(a);N_GUARD::QAB1(C)
- Refutation
- B(c);CHECK,XB(H)
- Try
- K(I);S_FLIGHT
- Vars
- B(c);N_GUARD,XP(B)::QAR1(C),XP(b)
- B(c);N_GUARD,XB(H)::QAR1(C),XP(b)
- B(c);N_GUARD::QAR1(C),XP(b)
- S(a);N_GUARD::QAB1(C)
- S(a);N_GUARD::QAB1(C),XS(a)
- Refutation
- P(g);XP(G)
- Try
- K(I);P-FLIGHT
- Vars
- B(c);N_GUARD,XP(B)::QAR1(C),XP(b)
- B(c);N_GUARD,XB(H)::QAR1(C),XP(b)
- B(c);N_GUARD::QAR1(C),XP(b)
- S(a);N_GUARD::QAB1(C)
- S(a);N_GUARD::QAB1(C),XS(a)
- Refutation
- P(g);XP(G)
- Try
- K(I);P_SPINB(H),S_FLIGHT
- Vars
- B(c);N_GUARD,XP(B)::QAR1(C),XP(b)
- P(g);OGATEB,XP(G)::QAB(C)
- B(c);N_GUARD::QAR1(C),XP(b)
- S(a);N_GUARD::QAB1(C)
- S(a);N_GUARD::QAB1(C),XS(a)
- Refutation
- B(c);CHECK,XB(H)
- Try
- K(I);P-FLIGHT
- Vars
- B(c);N_GUARD,XP(B)::QAR1(C),XP(b)
- B(c);N_GUARD,XB(H)::QAR1(C),XP(b)
- B(c);N_GUARD::QAR1(C),XP(b)
- S(a);N_GUARD::QAB1(C)
- S(a);N_GUARD::QAB1(C),XS(a)
- Refutation
- P(g);XP(G)
- Try
- K(I);S_FLIGHT
- Vars
- B(c);N_GUARD,XP(B)::QAR1(C),XP(b)
- B(c);N_GUARD,XB(H)::QAR1(C),XP(b)
- B(c);N_GUARD::QAR1(C),XP(b)
- S(a);N_GUARD::QAB1(C)
- S(a);N_GUARD::QAB1(C),XS(a)
- Refutation
- P(g);XP(G)
- Try
- B(H);XB(c)
- Threat
- QAR1(C),XP(b)
- Vars
- S(a);N_GUARD::QAB1(C)
- S(a);N_GUARD::QAB1(C),XS(a)
- Refutation
- P(e);XB(H)
- Try
- Q(C);
- Vars
- B(c);N_GUARD,XP(B)::QAR1(C),XP(b)
- B(c);N_GUARD,XB(H)::QAR1(C),XP(b)
- B(c);N_GUARD::QAR1(C),XP(b)
- S(a);OGATE::QAB(C)
- Refutation
- P(g);XP(G)
- Try
- Q(C);
- Vars
- S(a);N_GUARD::QAB1(C),XS(a)
- Refutation
- P(g);XP(G)
- Try
- Q(C);
- Vars
- B(c);N_GUARD,XP(B)::QAR1(C),XP(b)
- B(c);N_GUARD,XB(H)::QAR1(C),XP(b)
- B(c);N_GUARD::QAR1(C),XP(b)
- S(a);N_GUARD::QAB1(C),XS(a)
- Refutation
- P(g);XP(G)
- Try
- P(B);XB(c)
- Threat
- QAR1(C),XP(b)
- Vars
- S(a);N_GUARD::QAB1(C)
- S(a);N_GUARD::QAB1(C),XS(a)
- Refutation
- P(e);XP(B)
- Try
- P(G);XP(g)
- Vars
- B(c);N_GUARD,XP(B)::QAR1(C),XP(b)
- B(c);N_GUARD,XB(H)::QAR1(C),XP(b)
- B(c);N_GUARD::QAR1(C),XP(b)
- S(a);N_GUARD::QAB1(C)
- S(a);N_GUARD::QAB1(C),XS(a)
- Refutation
- P(h);XP(G)
- Try
- Actual
- Q(C);
- Vars
- B(c);XP(B)::S(F),XB(c)
- B(c);XB(H)::S(F),XB(c)
- P(g);OGATEB,XP(G)::QAB(C)
- B(c);N_GUARD::QAR1(C),XB(c)
- S(a);N_GUARD::QAB(C)
- S(a);OGATE::QAB(C)
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).