MESON Chess Problem Database
Problem Display
PID: 52333 (4bN1n/6K1/2pP2p1/2PBk1pp/4Pp2/4P3/1b5N/3QBRn1 w - - 0 1)
Dobbs, Gilbert S
Chess Amateur (The), 1908
#2
11 + 10
SOLUTION
- SOUND
- Sets
- 1...Ba1
- 2.Qxa1#
- 1...Bc1
- 2.Bc3#
- 2.Qd4#
- 1...Ba3
- 2.Bc3#
- 2.Qd4#
- 1...Bc3
- 2.Bxc3#
- 1...Bd4
- 2.Qxd4#
- 2.exd4#
- 1...Bd7
- 2.Sxd7#
- 1...Bf7
- 2.Sd7#
- 1...Se2
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sh3
- 2.Sf3#
- 1...Sf7
- 2.Sxg6#
- 1...fxe3
- 2.Bg3#
- 1...f3
- 2.Bg3#
- 1...g4
- 2.exf4#
- 1...h4
- 2.Sg4#
- 1...cxd5
- 2.Qxd5#
- 1...Ba1
- Tries
- 1.Bh4?
- 1...fxe3
- 2.Bg3#
- 1...gxh4
- 2.exf4#
- 1...cxd5
- 2.Qxd5#
- 1...Bd7
- 2.Sxd7#
- 1...Ba1
- 2.Qxa1#
- 1...Bc1
- 2.Qd4#
- 1...Ba3
- 2.Qd4#
- 1...Bd4
- 2.Qxd4#
- 2.exd4#
- 1...Bf7
- 2.Sd7#
- 1...Se2
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sh3
- 2.Sf3#
- 1...Sf7
- 2.Sxg6#
- 1...f3
- 2.Bg3#
- 1...g4
- 2.Bf6#
- 2.exf4#
- 1...Bc3!
- 1...fxe3
- 1.Rxg1?
- threat
- 2.Sf3#
- 2.Rxg5#
- 1...fxe3
- 2.Bg3#
- 1...cxd5
- 2.Qxd5#
- 1...Bd7
- 2.Sf3#
- 2.Sxd7#
- 1...Sf7
- 2.Sf3#
- 2.Sxg6#
- 1...f3
- 2.Sxf3#
- 2.Bg3#
- 2.Rxg5#
- 1...g4!
- threat
- 1.Qg4?
- threat
- 2.Qe6#
- 2.Qxg5#
- 1...hxg4
- 2.Sxg4#
- 1...cxd5
- 2.Qe6#
- 1...Bd7
- 2.Sxd7#
- 1...Bf7
- 2.Sd7#
- 2.Qxg5#
- 1...Sf3
- 2.Sxf3#
- 2.Qe6#
- 1...Sh3
- 2.Sf3#
- 2.Qe6#
- 1...Sf7
- 2.Sxg6#
- 2.Qe6#
- 1...fxe3!
- threat
- 1.Qd2?
- threat
- 2.Qxb2#
- 1...cxd5
- 2.Qxd5#
- 1...Bc1
- 2.Qc3#
- 2.Qd4#
- 1...Ba3
- 2.Qc3#
- 2.Qd4#
- 1...Bc3
- 2.Qxc3#
- 1...Bd4
- 2.Qxd4#
- 2.exd4#
- 1...Se2
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Ba1!
- threat
- 1.Qd3?
- 1...fxe3
- 2.Bg3#
- 1...cxd5
- 2.Qxd5#
- 1...Bc1
- 2.Bc3#
- 2.Qc3#
- 2.Qd4#
- 1...Ba3
- 2.Bc3#
- 2.Qc3#
- 2.Qd4#
- 1...Bc3
- 2.Bxc3#
- 2.Qxc3#
- 1...Bd4
- 2.Qxd4#
- 2.exd4#
- 1...Bd7
- 2.Sxd7#
- 1...Bf7
- 2.Sd7#
- 1...Se2
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sh3
- 2.Sf3#
- 1...Sf7
- 2.Sxg6#
- 1...f3
- 2.Bg3#
- 1...g4
- 2.exf4#
- 1...h4
- 2.Sg4#
- 1...Ba1!
- 1...fxe3
- 1.d7?
- threat
- 2.dxe8Q#
- 2.dxe8R#
- 1...Bxd7
- 2.Sxd7#
- 1...fxe3
- 2.Bg3#
- 2.dxe8Q#
- 2.dxe8R#
- 1...cxd5
- 2.Qxd5#
- 2.dxe8Q#
- 2.dxe8R#
- 1...Ba1
- 2.Qxa1#
- 2.dxe8Q#
- 2.dxe8R#
- 1...Bc1
- 2.Bc3#
- 2.Qd4#
- 2.dxe8Q#
- 2.dxe8R#
- 1...Ba3
- 2.Bc3#
- 2.Qd4#
- 2.dxe8Q#
- 2.dxe8R#
- 1...Bc3
- 2.Bxc3#
- 2.dxe8Q#
- 2.dxe8R#
- 1...Bd4
- 2.Qxd4#
- 2.exd4#
- 2.dxe8Q#
- 2.dxe8R#
- 1...Se2
- 2.Sf3#
- 2.dxe8Q#
- 2.dxe8R#
- 1...Sf3
- 2.Sxf3#
- 2.dxe8Q#
- 2.dxe8R#
- 1...Sh3
- 2.Sf3#
- 2.dxe8Q#
- 2.dxe8R#
- 1...Sf7
- 2.Sxg6#
- 2.dxe8Q#
- 2.dxe8R#
- 1...f3
- 2.Bg3#
- 2.dxe8Q#
- 2.dxe8R#
- 1...g4
- 2.exf4#
- 2.dxe8Q#
- 2.dxe8R#
- 1...h4
- 2.Sg4#
- 2.dxe8Q#
- 2.dxe8R#
- 1...Bf7!
- threat
- 1.Bh4?
- Keys
- 1.Qa4!
- 1...fxe3
- 2.Bg3#
- 1...cxd5
- 2.Qxe8#
- 1...Ba1
- 2.Qxa1#
- 1...Bc1
- 2.Bc3#
- 2.Qd4#
- 1...Ba3
- 2.Bc3#
- 2.Qd4#
- 1...Bc3
- 2.Bxc3#
- 1...Bd4
- 2.Qxd4#
- 2.exd4#
- 1...Bd7
- 2.Sxd7#
- 1...Bf7
- 2.Sd7#
- 1...Se2
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sh3
- 2.Sf3#
- 1...Sf7
- 2.Sxg6#
- 1...f3
- 2.Bg3#
- 1...g4
- 2.exf4#
- 1...h4
- 2.Sg4#
- 1...fxe3
- 1.Qa4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(b);OGATEB::QAB(A),XB(b)
- B(b);N_GUARD::B(B),XB(b)
- B(i);N_GUARD::S(K),XB(i)
- B(i);N_GUARD::S(K)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- S(j);N_GUARD,S_CUTB(i)::S(K),XP(h)
- P(c);OGATEB,XP(E)::B(B)
- P(c);OGATEB::B(B)
- P(e);N_GUARD::P(E),XP(c)
- P(f);N_GUARD::S(D)
- P(g);OGATE,XB(H)::QAR1(A),XP(g)
- Tries
- Try
- B(B);
- Vars
- P(c);OGATEB,XP(E)::B(B)
- P(e);N_GUARD,XB(B)::P(E),XP(c)
- P(g);OGATE,XB(H)::QAR1(A),XP(g)
- B(i);N_GUARD::S(K),XB(i)
- B(b);OGATEB::QAB(A),XB(b)
- B(b);N_GUARD::QAB1(A)
- B(i);N_GUARD::S(K)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- S(j);N_GUARD,S_CUTB(i)::S(K),XP(h)
- P(c);OGATEB::B(B)
- Refutation
- B(b);
- Try
- R(C);XS(a)
- Threat
- DUALS(2)
- Vars
- P(c);OGATEB,XP(E)::B(B)
- P(g);OGATE,XB(H)::QAR1(A),XP(g)
- Refutation
- P(e);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- P(f);XQ(A)::S(D),XP(f)
- P(g);XB(H)::QAR1(A)
- B(i);N_GUARD::S(K),XB(i)
- Refutation
- P(c);XP(E)
- Try
- Q(A);
- Threat
- QAB(A),XB(b)
- Vars
- P(g);OGATE,XB(H)::QAR1(A),XP(g)
- B(b);N_GUARD::QAB(A),XB(b)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- Refutation
- B(b);
- Try
- Q(A);
- Vars
- P(c);OGATEB,XP(E)::B(B)
- P(g);OGATE,XB(H)::QAR1(A),XP(g)
- B(i);N_GUARD::S(K),XB(i)
- B(i);N_GUARD::S(K)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- S(j);N_GUARD,S_CUTB(i)::S(K),XP(h)
- P(c);OGATEB::B(B)
- P(e);N_GUARD::P(E),XP(c)
- P(f);N_GUARD::S(D)
- Refutation
- B(b);
- Try
- P(I);
- Threat
- PXB(i)=Q
- Vars
- B(i);XP(I)::S(K),XB(i)
- Refutation
- B(i);
- Try
- Actual
- Q(A);
- Vars
- P(c);OGATEB,XP(E)::B(B)
- P(g);OGATE,XB(H)::QAR(A),XB(i)
- B(b);OGATEB::QAB(A),XB(b)
- B(b);N_GUARD::B(B),XB(b)
- B(i);N_GUARD::S(K),XB(i)
- B(i);N_GUARD::S(K)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- S(j);N_GUARD,S_CUTB(i)::S(K),XP(h)
- P(c);OGATEB::B(B)
- P(e);N_GUARD::P(E),XP(c)
- P(f);N_GUARD::S(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).