MESON Chess Problem Database
Problem Display
PID: 81185 (KB3bq1/8/1pQ5/8/2nk4/1Bn2r2/2PP4/2NbR1N1 w - - 0 1)
Macleod, Norman Alasdair
Stratford Express, 1951
#2
9 + 8
| 6455 | The Chessboard Adventures of Norman Macleod | 1996 |
SOLUTION
- SOUND
- Sets
- 1...Qh7
- 2.Qxc4#
- 1...Qxg1
- 2.Qxc4#
- 1...Qg2
- 2.Qxc4#
- 1...Qg3
- 2.Qxc4#
- 1...Qg4
- 2.Qxc4#
- 1...Qg5
- 2.Qxc4#
- 1...Qg6
- 2.Qxc4#
- 1...Qg7
- 2.Qxc4#
- 1...Qh8
- 2.Qxc4#
- 1...Rf7
- 2.Qxc4#
- 1...Bxc2
- 2.Sxf3#
- 1...Sb1
- 2.Re4#
- 1...Sa2
- 2.Re4#
- 1...Se2
- 2.Sxf3#
- 1...Sa4
- 2.Re4#
- 1...Se4
- 2.Rxe4#
- 1...Sb5
- 2.Re4#
- 1...Sd5
- 2.Qxc4#
- 1...Sb2
- 2.Be5#
- 1...Sxd2
- 2.Be5#
- 1...Sa3
- 2.Be5#
- 1...Se3
- 2.dxc3#
- 1...Sa5
- 2.Be5#
- 1...Se5
- 2.Bxe5#
- 1...Sd6
- 2.Qxb6#
- 1...Qh7
- Tries
- 1.Sce2+?
- 1...Sxe2
- 2.Sxf3#
- 1...Bxe2!
- 1...Sxe2
- 1.Bxc4?
- threat
- 2.Sb3#
- 2.Be5#
- 1...Qxc4
- 2.Be5#
- 1...Bxc2
- 2.Sxf3#
- 2.Be5#
- 1...Qd5
- 2.Sb3#
- 1...Qe6
- 2.Sb3#
- 1...Qg3
- 2.Sb3#
- 1...Qg5
- 2.Sb3#
- 1...Qg7
- 2.Sb3#
- 1...Qh8
- 2.Sb3#
- 1...Re3
- 2.Sb3#
- 2.dxe3#
- 1...Rf5
- 2.Sb3#
- 1...Be2
- 2.Sb3#
- 1...Ba3
- 2.Sb3#
- 1...Bb4
- 2.Sb3#
- 1...Bd6
- 2.Sb3#
- 1...Bh6
- 2.Sb3#
- 1...Be7
- 2.Sb3#
- 1...Bg7
- 2.Sb3#
- 1...Sb1
- 2.Be5#
- 2.Re4#
- 1...Sa2
- 2.Be5#
- 2.Re4#
- 1...Se2
- 2.Sxf3#
- 1...Sa4
- 2.Be5#
- 2.Re4#
- 1...Se4
- 2.Rxe4#
- 1...Sb5
- 2.Be5#
- 2.Re4#
- 1...Sd5
- 2.Be5#
- 1...Bc5!
- threat
- 1.dxc3+?
- 1...Rxc3
- 2.Re4#
- 1...Kxc3!
- 1...Rxc3
- 1.Sce2+?
- Keys
- 1.Ba2!
- threat
- 2.Sb3#
- 1...Bxc2
- 2.Sxf3#
- 1...Sxa2
- 2.Re4#
- 1...Sxd2
- 2.Be5#
- 1...Sb1
- 2.Re4#
- 1...Se2
- 2.Sxf3#
- 1...Sa4
- 2.Re4#
- 1...Se4
- 2.Rxe4#
- 1...Sb5
- 2.Re4#
- 1...Sd5
- 2.Qxc4#
- 1...Sb2
- 2.Be5#
- 1...Sa3
- 2.Be5#
- 1...Se3
- 2.dxc3#
- 1...Sa5
- 2.Be5#
- 1...Se5
- 2.Bxe5#
- 1...Sd6
- 2.Qxb6#
- threat
- 1.Ba2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 10
- Sets
- Q(h);N_GUARD::QAR1(G),XS(d)
- Q(h);N_GUARD,XS(C)::QAR1(G),XS(d)
- R(c);S_CUTQ(h)::QAR1(G),XS(d)
- B(a);N_GUARD,XP(D)::S(C),XR(c)
- S(b);N_GUARD::R1(B)
- S(b);S_CUTB(a)::S(C),XR(c)
- S(b);N_GUARD::R1(B),XS(b)
- S(b);S_CUTQ(h)::QAR1(G),XS(d)
- S(d);N_GUARD::B(I)
- S(d);N_GUARD,XP(E)::B(I)
- S(d);S_CUTR(c)::P(E),XS(b)
- S(d);N_GUARD::B(I),XS(d)
- S(d);N_GUARD,S_CUTB(g)::QAB(G),XP(f)
- Tries
- Try
- S(A);CHECK
- Vars
- S(b);XS(A)::S(C),XR(c)
- Refutation
- B(a);XS(A)
- Try
- B(F);XS(d)
- Threat
- DUALS(2)
- Vars
- Q(h);XB(F)::B(I)
- Q(h);P_PINQ(G)::S(A)
- Q(h);::S(A)
- R(c);::S(A)
- B(a);::S(A)
- B(g);P_PINB(I)::S(A)
- S(b);S_CUTB(a)::S(C),XR(c)
- S(b);N_GUARD::R1(B),XS(b)
- S(b);::B(I)
- Refutation
- B(g);P_PINB(I)
- Try
- P(E);CHECK,XS(b)
- Vars
- R(c);SBLOCK,XP(E)::R1(B)
- Refutation
- K(e);P_SPINS(d),S_FLIGHT,XP(E)
- Try
- Actual
- B(F);
- Threat
- S(A)
- Vars
- B(a);N_GUARD,XP(D)::S(C),XR(c)
- S(b);N_GUARD,XB(F)::R1(B)
- S(d);N_GUARD,XP(E)::B(I)
- S(b);N_GUARD::R1(B)
- S(b);S_CUTB(a)::S(C),XR(c)
- S(b);N_GUARD::R1(B),XS(b)
- S(b);S_CUTQ(h)::QAR1(G),XS(d)
- S(d);N_GUARD::B(I)
- S(d);S_CUTR(c)::P(E),XS(b)
- S(d);N_GUARD::B(I),XS(d)
- S(d);N_GUARD,S_CUTB(g)::QAB(G),XP(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).