MESON Chess Problem Database
Problem Display
PID: 16747 (3n4/3K4/Np1b2p1/1p1k2p1/p2p2P1/pP6/P1Q5/3BR2b w - - 0 1)
Arnstam, Knut Anders Olof
3rd Prize, Tidskrift for Schack, 1942
#2
8 + 11
| 3098 | FIDE Album (1914-1944) (I) | 1971 |
SOLUTION
- SOUND
- Sets
- 1...Bg2
- 2.Qxg2#
- 1...Bf3
- 2.Bxf3#
- 1...Be4
- 2.Qxe4#
- 1...Bh2
- 2.Sb4#
- 1...Bg3
- 2.Sb4#
- 1...Bb4
- 2.Sxb4#
- 2.Sc7#
- 1...Bf4
- 2.Sb4#
- 1...Bc5
- 2.Sc7#
- 1...Be5
- 2.Sb4#
- 1...Bc7
- 2.Sb4#
- 2.Sxc7#
- 1...Be7
- 2.Sc7#
- 1...Bb8
- 2.Sb4#
- 1...Bf8
- 2.Sc7#
- 1...Sc6
- 2.Qxc6#
- 1...Se6
- 2.Qc6#
- 1...Sb7
- 2.Qc6#
- 1...Sf7
- 2.Qc6#
- 1...axb3
- 2.Qxb3#
- 1...d3
- 2.Qxd3#
- 1...b4
- 2.Qc4#
- 1...Bg2
- Tries
- 1.Re3?
- 1...axb3
- 2.Qxb3#
- 1...Be4
- 2.Qxe4#
- 1...d3
- 2.Qxd3#
- 1...Bg2
- 2.Qxg2#
- 1...Bf3
- 2.Bxf3#
- 1...Bh2
- 2.Sb4#
- 1...Bg3
- 2.Sb4#
- 1...Bb4
- 2.Sxb4#
- 2.Sc7#
- 1...Bf4
- 2.Sb4#
- 1...Bc5
- 2.Sc7#
- 1...Be5
- 2.Sb4#
- 1...Bc7
- 2.Sb4#
- 2.Sxc7#
- 1...Be7
- 2.Sc7#
- 1...Bb8
- 2.Sb4#
- 1...Bf8
- 2.Sc7#
- 1...Sc6
- 2.Qxc6#
- 1...Se6
- 2.Qc6#
- 1...Sb7
- 2.Qc6#
- 1...Sf7
- 2.Qc6#
- 1...b4
- 2.Qc4#
- 1...dxe3!
- 1...axb3
- 1.Re5+?
- 1...Bxe5
- 2.Sb4#
- 1...Kxe5!
- 1...Bxe5
- 1.Re6?
- 1...axb3
- 2.Qxb3#
- 1...d3
- 2.Qxd3#
- 1...Bg2
- 2.Qxg2#
- 1...Bf3
- 2.Bxf3#
- 1...Be4
- 2.Qxe4#
- 1...Bh2
- 2.Sb4#
- 1...Bg3
- 2.Sb4#
- 1...Bb4
- 2.Sxb4#
- 2.Sc7#
- 1...Bf4
- 2.Sb4#
- 1...Bc5
- 2.Sc7#
- 1...Be5
- 2.Sb4#
- 1...Bc7
- 2.Sb4#
- 2.Sxc7#
- 1...Be7
- 2.Sc7#
- 1...Bb8
- 2.Sb4#
- 1...Bf8
- 2.Sc7#
- 1...Sc6
- 2.Qxc6#
- 1...Sb7
- 2.Qc6#
- 1...Sf7
- 2.Qc6#
- 1...b4
- 2.Qc4#
- 1...Sxe6!
- 1...axb3
- 1.Qf5+?
- 1...Be5
- 2.Rxe5#
- 2.Qxe5#
- 1...gxf5!
- 1...Be5
- 1.Qh2?
- threat
- 2.Qxd6#
- 2.Qxh1#
- 1...axb3
- 2.Bxb3#
- 1...d3
- 2.Qxd6#
- 1...Bg2
- 2.Qxd6#
- 2.Qxg2#
- 1...Bf3
- 2.Bxf3#
- 2.Qxd6#
- 1...Be4
- 2.Qxd6#
- 1...Bg3
- 2.Qxh1#
- 1...Bb4
- 2.Re5#
- 2.Qe5#
- 2.Qxh1#
- 1...Bf4
- 2.Qxh1#
- 1...Bc5
- 2.Sc7#
- 2.Re5#
- 2.Qe5#
- 2.Qxh1#
- 1...Be5
- 2.Rxe5#
- 2.Qxe5#
- 2.Qxh1#
- 1...Bc7
- 2.Qxh1#
- 1...Be7
- 2.Re5#
- 2.Qe5#
- 2.Qxh1#
- 1...Bb8
- 2.Qxh1#
- 1...Bf8
- 2.Re5#
- 2.Qe5#
- 2.Qxh1#
- 1...Sb7
- 2.Qxh1#
- 1...Sf7
- 2.Qxh1#
- 1...Bxh2!
- threat
- 1.Qc5+?
- 1...Bxc5
- 2.Sc7#
- 1...bxc5!
- 1...Bxc5
- 1.Qc7?
- threat
- 2.Qxd6#
- 1...axb3
- 2.Bxb3#
- 1...Bh2
- 2.Sb4#
- 1...Bg3
- 2.Sb4#
- 1...Bb4
- 2.Sxb4#
- 2.Re5#
- 2.Qe5#
- 1...Bf4
- 2.Sb4#
- 1...Bc5
- 2.Re5#
- 2.Qe5#
- 1...Be5
- 2.Sb4#
- 2.Rxe5#
- 2.Qxe5#
- 1...Be7
- 2.Re5#
- 2.Qe5#
- 1...Bf8
- 2.Re5#
- 2.Qe5#
- 1...Sb7
- 2.Qc6#
- 2.Qxb7#
- 1...Sf7
- 2.Qc6#
- 2.Qb7#
- 1...Bxc7!
- threat
- 1.Re3?
- Keys
- 1.Qe2!
- 1...axb3
- 2.Bxb3#
- 1...Be4
- 2.Qxe4#
- 1...d3
- 2.Qxd3#
- 1...Bg2
- 2.Qxg2#
- 1...Bf3
- 2.Qxf3#
- 1...Bh2
- 2.Qxb5#
- 1...Bg3
- 2.Qxb5#
- 1...Bb4
- 2.Qe5#
- 1...Bf4
- 2.Qxb5#
- 1...Bc5
- 2.Sc7#
- 2.Qe5#
- 1...Be5
- 2.Qxb5#
- 2.Qxe5#
- 1...Bc7
- 2.Qxb5#
- 1...Be7
- 2.Qe5#
- 1...Bb8
- 2.Qxb5#
- 1...Bf8
- 2.Qe5#
- 1...Sc6
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...Sb7
- 2.Qe6#
- 1...Sf7
- 2.Qe6#
- 1...b4
- 2.Qc4#
- 1...axb3
- 1.Qe2!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 12
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- B(a);N_GUARD::QAB(D),XB(a)
- B(a);N_GUARD::B(A),XB(a)
- B(a);N_GUARD::QAB1(D),XB(a)
- B(i);N_GUARD::S(G)
- S(k);N_GUARD::QAB1(D),XS(k)
- S(k);N_GUARD::QAB1(D)
- P(c);OGATE,XP(E)::QAB(D),XP(c)
- P(d);OGATEB::QAR2(D),XP(d)
- P(e);N_GUARD::QAB1(D)
- Tries
- Try
- R(B);
- Vars
- P(c);OGATE,XP(E)::QAB(D),XP(c)
- B(a);N_GUARD::QAB1(D),XB(a)
- P(d);OGATEB::QAR2(D),XP(d)
- B(a);N_GUARD::QAB(D),XB(a)
- B(a);N_GUARD::B(A),XB(a)
- B(i);N_GUARD::S(G)
- S(k);N_GUARD::QAB1(D),XS(k)
- S(k);N_GUARD::QAB1(D)
- P(e);N_GUARD::QAB1(D)
- Refutation
- P(d);XR(B)
- Try
- R(B);CHECK
- Vars
- B(i);SBLOCK,XR(B)::S(G)
- Refutation
- K(f);P-FLIGHT,XR(B)
- Try
- R(B);
- Vars
- P(c);OGATE,XP(E)::QAB(D),XP(c)
- P(d);OGATEB::QAR2(D),XP(d)
- B(a);N_GUARD::QAB(D),XB(a)
- B(a);N_GUARD::B(A),XB(a)
- B(a);N_GUARD::QAB1(D),XB(a)
- B(i);N_GUARD::S(G)
- S(k);N_GUARD::QAB1(D),XS(k)
- S(k);N_GUARD::QAB1(D)
- P(e);N_GUARD::QAB1(D)
- Refutation
- S(k);XR(B)
- Try
- Q(D);CHECK
- Refutation
- P(j);XQ(D)
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- P(c);OGATE,XP(E)::B(A),XP(c)
- P(d);::QAR1(D),XB(i)
- B(a);::QAR1(D),XB(i)
- B(i);::QAB(D),XB(a)
- S(k);::QAB(D),XB(a)
- Refutation
- B(i);XQ(D)
- Try
- Q(D);CHECK
- Vars
- B(i);SBLOCK,XQ(D)::S(G)
- Refutation
- P(h);XQ(D)
- Try
- Q(D);
- Threat
- QAR1(D),XB(i)
- Vars
- P(c);OGATE,XP(E)::B(A),XP(c)
- B(i);N_GUARD::S(G)
- Refutation
- B(i);XQ(D)
- Try
- Actual
- Q(D);
- Vars
- P(c);OGATE,XP(E)::B(A),XP(c)
- B(a);N_GUARD::QAB1(D),XB(a)
- P(d);OGATEB::QAR2(D),XP(d)
- B(a);N_GUARD::QAB(D),XB(a)
- B(i);N_GUARD::QAR2(D),XP(e)
- B(i);N_GUARD::QAR1(D)
- S(k);N_GUARD::QAB1(D)
- S(k);N_GUARD::QAB1(D),XS(k)
- P(e);N_GUARD::QAB1(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).