MESON Chess Problem Database
Problem Display
PID: 165488 (8/4n2K/4P3/N1pp1p2/2bk1P2/1p1P2Q1/1P2R1n1/8 w - - 0 1)
Andersson, Gunnar
Eskilstuna Kuriren, 1946
#2
8 + 8
| 15148 | Sadier Collection | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Bxd3
- 2.Qg7#
- 1...Bb5
- 2.Sxb3#
- 1...Ba6
- 2.Sxb3#
- 1...Se1
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sxf4
- 2.Qe3#
- 1...Sh4
- 2.Qe3#
- 1...Sc6
- 2.Sxc6#
- 1...Sg6
- 2.Sc6#
- 1...Sc8
- 2.Sc6#
- 1...Sg8
- 2.Sc6#
- 1...Bxd3
- Tries
- 1.Kh6?
- 1...Bxd3
- 2.Qg7#
- 1...Sxf4
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Bb5
- 2.Sxb3#
- 1...Ba6
- 2.Sxb3#
- 1...Se1
- 2.Qe3#
- 1...Sh4
- 2.Qe3#
- 1...Sc6
- 2.Sxc6#
- 1...Sg6
- 2.Sc6#
- 1...Sc8
- 2.Sc6#
- 1...Sg8+!
- 1...Bxd3
- 1.Kg7?
- 1...Sxf4
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Bb5
- 2.Sxb3#
- 1...Ba6
- 2.Sxb3#
- 1...Se1
- 2.Qe3#
- 1...Sh4
- 2.Qe3#
- 1...Sc6
- 2.Sxc6#
- 1...Sg6
- 2.Sc6#
- 1...Sc8
- 2.Sc6#
- 1...Sg8
- 2.Sc6#
- 1...Bxd3!
- 1...Sxf4
- 1.Kh8?
- 1...Bxd3
- 2.Qg7#
- 1...Sxf4
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Bb5
- 2.Sxb3#
- 1...Ba6
- 2.Sxb3#
- 1...Se1
- 2.Qe3#
- 1...Sh4
- 2.Qe3#
- 1...Sc6
- 2.Sxc6#
- 1...Sc8
- 2.Sc6#
- 1...Sg8
- 2.Sc6#
- 1...Sg6+!
- 1...Bxd3
- 1.Re1?
- 1...Bxd3
- 2.Qg7#
- 1...Sxf4
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Bb5
- 2.Sxb3#
- 1...Ba6
- 2.Sxb3#
- 1...Sh4
- 2.Qe3#
- 1...Sc6
- 2.Sxc6#
- 1...Sg6
- 2.Sc6#
- 1...Sc8
- 2.Sc6#
- 1...Sg8
- 2.Sc6#
- 1...Sxe1!
- 1...Bxd3
- 1.Rxg2?
- 1...Bb5
- 2.Sxb3#
- 1...Ba6
- 2.Sxb3#
- 1...Sc6
- 2.Sxc6#
- 1...Sg6
- 2.Sc6#
- 1...Sc8
- 2.Sc6#
- 1...Sg8
- 2.Sc6#
- 1...Bxd3!
- 1...Bb5
- 1.Re5?
- 1...Sxf4
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Bb5
- 2.Sxb3#
- 1...Ba6
- 2.Sxb3#
- 1...Se1
- 2.Qe3#
- 1...Sh4
- 2.Qe3#
- 1...Sc6
- 2.Sxc6#
- 1...Sg6
- 2.Sc6#
- 1...Sc8
- 2.Sc6#
- 1...Sg8
- 2.Sc6#
- 1...Bxd3!
- 1...Sxf4
- 1.Qe1?
- threat
- 2.Qc3#
- 1...Kxd3
- 2.Rd2#
- 2.Qd2#
- 2.Qd1#
- 1...Sxe1!
- threat
- 1.Qf2+?
- 1...Se3
- 2.Qxe3#
- 1...Kxd3!
- 1...Se3
- 1.Qf3?
- 1...Sxf4
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Bb5
- 2.Sxb3#
- 1...Ba6
- 2.Sxb3#
- 1...Se1
- 2.Qe3#
- 1...Sh4
- 2.Qe3#
- 1...Sc6
- 2.Sxc6#
- 1...Sg6
- 2.Sc6#
- 1...Sc8
- 2.Sc6#
- 1...Sg8
- 2.Sc6#
- 1...Bxd3!
- 1...Sxf4
- 1.Qh3?
- 1...Sxf4
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Bb5
- 2.Sxb3#
- 1...Ba6
- 2.Sxb3#
- 1...Se1
- 2.Qe3#
- 1...Sh4
- 2.Qe3#
- 1...Sc6
- 2.Sxc6#
- 1...Sg6
- 2.Sc6#
- 1...Sc8
- 2.Sc6#
- 1...Sg8
- 2.Sc6#
- 1...Bxd3!
- 1...Sxf4
- 1.dxc4?
- threat
- 2.Qc3#
- 1...Se3
- 2.Qxe3#
- 1...dxc4!
- threat
- 1.Kh6?
- Keys
- 1.Rd2!
- 1...Bxd3
- 2.Qxd3#
- 1...Sxf4
- 2.Qxf4#
- 1...Bb5
- 2.Sxb3#
- 1...Ba6
- 2.Sxb3#
- 1...Se1
- 2.Qf2#
- 2.Qg1#
- 1...Se3
- 2.Qg7#
- 1...Sh4
- 2.Qf2#
- 2.Qg1#
- 1...Sc6
- 2.Sxc6#
- 1...Sg6
- 2.Sc6#
- 1...Sc8
- 2.Sc6#
- 1...Sg8
- 2.Sc6#
- 1...Bxd3
- 1.Rd2!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 3
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- B(c);SBLOCK,XP(C)::QAB(D)
- B(c);N_GUARD::S(F),XP(b)
- S(a);N_GUARD::QAB1(D)
- S(a);N_GUARD::QAB1(D),XS(a)
- S(a);N_GUARD,XP(E)::QAB1(D)
- S(h);N_GUARD::S(F),XS(h)
- S(h);N_GUARD::S(F)
- Tries
- Try
- K(H);P-FLIGHT
- Vars
- B(c);SBLOCK,XP(C)::QAB(D)
- S(a);N_GUARD,XP(E)::QAB1(D)
- S(a);N_GUARD::QAB1(D),XS(a)
- B(c);N_GUARD::S(F),XP(b)
- S(a);N_GUARD::QAB1(D)
- S(h);N_GUARD::S(F),XS(h)
- S(h);N_GUARD::S(F)
- Refutation
- S(h);CHECK
- Try
- K(H);P-FLIGHT
- Vars
- S(a);N_GUARD,XP(E)::QAB1(D)
- S(a);N_GUARD::QAB1(D),XS(a)
- B(c);N_GUARD::S(F),XP(b)
- S(a);N_GUARD::QAB1(D)
- S(h);N_GUARD::S(F),XS(h)
- S(h);N_GUARD::S(F)
- Refutation
- B(c);XP(C)
- Try
- K(H);P-FLIGHT
- Vars
- B(c);SBLOCK,XP(C)::QAB(D)
- S(a);N_GUARD,XP(E)::QAB1(D)
- S(a);N_GUARD::QAB1(D),XS(a)
- B(c);N_GUARD::S(F),XP(b)
- S(a);N_GUARD::QAB1(D)
- S(h);N_GUARD::S(F),XS(h)
- S(h);N_GUARD::S(F)
- Refutation
- S(h);CHECK
- Try
- R(B);
- Vars
- B(c);SBLOCK,XP(C)::QAB(D)
- S(a);N_GUARD,XP(E)::QAB1(D)
- S(a);N_GUARD::QAB1(D),XS(a)
- B(c);N_GUARD::S(F),XP(b)
- S(a);N_GUARD::QAB1(D)
- S(h);N_GUARD::S(F),XS(h)
- S(h);N_GUARD::S(F)
- Refutation
- S(a);XR(B)
- Try
- R(B);XS(a)
- Vars
- B(c);N_GUARD::S(F),XP(b)
- S(h);N_GUARD::S(F),XS(h)
- S(h);N_GUARD::S(F)
- Refutation
- B(c);XP(C)
- Try
- R(B);
- Vars
- S(a);N_GUARD,XP(E)::QAB1(D)
- S(a);N_GUARD::QAB1(D),XS(a)
- B(c);N_GUARD::S(F),XP(b)
- S(a);N_GUARD::QAB1(D)
- S(h);N_GUARD::S(F),XS(h)
- S(h);N_GUARD::S(F)
- Refutation
- B(c);XP(C)
- Try
- Q(D);
- Threat
- QAB1(D)
- Refutation
- S(a);XQ(D)
- Try
- Q(D);CHECK
- Vars
- S(a);N_GUARD,P_SPINS(a)::QAB1(D),XS(a)
- Refutation
- K(d);P-FLIGHT,XP(C)
- Try
- Q(D);
- Vars
- S(a);N_GUARD,XP(E)::QAB1(D)
- S(a);N_GUARD::QAB1(D),XS(a)
- B(c);N_GUARD::S(F),XP(b)
- S(a);N_GUARD::QAB1(D)
- S(h);N_GUARD::S(F),XS(h)
- S(h);N_GUARD::S(F)
- Refutation
- B(c);XP(C)
- Try
- Q(D);
- Vars
- S(a);N_GUARD,XP(E)::QAB1(D)
- S(a);N_GUARD::QAB1(D),XS(a)
- B(c);N_GUARD::S(F),XP(b)
- S(a);N_GUARD::QAB1(D)
- S(h);N_GUARD::S(F),XS(h)
- S(h);N_GUARD::S(F)
- Refutation
- B(c);XP(C)
- Try
- P(C);XB(c)
- Threat
- QAB1(D)
- Vars
- S(a);N_GUARD::QAB1(D),XS(a)
- Refutation
- P(f);XP(C)
- Try
- Actual
- R(B);
- Vars
- B(c);OGATE,P_SPINB(c),XP(C)::QAR1(D),XB(c)
- S(a);OGATE,XP(E)::QAR2(D),XS(a)
- B(c);N_GUARD::S(F),XP(b)
- S(a);SBLOCK::QAB(D)
- S(h);N_GUARD::S(F),XS(h)
- S(h);N_GUARD::S(F)
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).