MESON Chess Problem Database
Problem Display
PID: 286 (8/3KN3/3Qp3/1p6/1RbbkBN1/R2r4/2n1P1n1/1B6 w - - 0 1)
Millins, James Lever
The Observer, 1920
(First published on Sun Oct 10 1920)
#2
9 + 8
| 887 | Mate in Two Moves | 1931 |
| 15239 | Valois Notebooks | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Re3
- 2.Sf2#
- 1...Rf3
- 2.exf3#
- 1...Ba2
- 2.Sf2#
- 2.Sf6#
- 2.Qe5#
- 1...Bb3
- 2.Sf2#
- 2.Sf6#
- 2.Qe5#
- 1...Bd5
- 2.Sf2#
- 2.Sf6#
- 2.Qe5#
- 1...Ba1
- 2.Sf2#
- 1...Bg1
- 2.Sf6#
- 1...Bb2
- 2.Sf2#
- 1...Bf2
- 2.Sxf2#
- 2.Sf6#
- 1...Bc3
- 2.Sf2#
- 1...Be3
- 2.Sf6#
- 1...Bc5
- 2.Sf6#
- 1...Bb6
- 2.Sf6#
- 1...Bf6
- 2.Sf2#
- 2.Sxf6#
- 1...Ba7
- 2.Sf6#
- 1...Bg7
- 2.Sf2#
- 1...Bh8
- 2.Sf2#
- 1...Sce3
- 2.Sf2#
- 1...Sge3
- 2.Sf2#
- 1...Re3
- Tries
- 1.Rxd3?
- threat
- 2.Rxd4#
- 1...Bxd3
- 2.Sf2#
- 2.Sf6#
- 2.Qe5#
- 1...Be5
- 2.Qxe5#
- 1...Ba1
- 2.Sf2#
- 1...Bg1
- 2.Sf6#
- 2.Qe5#
- 1...Bb2
- 2.Sf2#
- 1...Bf2
- 2.Sxf2#
- 2.Sf6#
- 2.Qe5#
- 1...Bc3
- 2.Sf2#
- 1...Be3
- 2.Sf6#
- 2.Qe5#
- 1...Bc5
- 2.Sf6#
- 2.Qe5#
- 1...Bb6
- 2.Sf6#
- 2.Qe5#
- 1...Bf6
- 2.Sf2#
- 2.Sxf6#
- 1...Ba7
- 2.Sf6#
- 2.Qe5#
- 1...Bg7
- 2.Sf2#
- 1...Bh8
- 2.Sf2#
- 1...e5!
- threat
- 1.Rxc4?
- threat
- 2.Sf2#
- 2.Sf6#
- 2.Qe5#
- 1...Sxf4
- 2.Qe5#
- 1...e5
- 2.Qxe5#
- 1...Rf3
- 2.Sf6#
- 2.Rxd4#
- 2.Qe5#
- 2.Qxd4#
- 2.exf3#
- 1...bxc4!
- threat
- 1.Rxd3?
- Keys
- 1.Be3!
- 1...Rxa3
- 2.Qxd4#
- 1...Rxe3
- 2.Sf2#
- 1...Bxe3
- 2.Sf6#
- 1...Sxa3
- 2.Qxd4#
- 1...Scxe3
- 2.Sf2#
- 1...Sxb4
- 2.Qxd4#
- 1...Sgxe3
- 2.Sf2#
- 1...Rd1
- 2.Sf2#
- 1...Rd2
- 2.Sf2#
- 1...Rb3
- 2.Qxd4#
- 1...Rc3
- 2.Qxd4#
- 1...Ba2
- 2.Qe5#
- 1...Bb3
- 2.Qe5#
- 1...Bd5
- 2.Qe5#
- 1...Ba1
- 2.Qxd3#
- 1...Bb2
- 2.Qxd3#
- 1...Bc3
- 2.Qxd3#
- 1...Bc5
- 2.Qxd3#
- 1...Be5
- 2.Qxd3#
- 1...Bb6
- 2.Qxd3#
- 1...Bf6
- 2.Qxd3#
- 1...Ba7
- 2.Qxd3#
- 1...Bg7
- 2.Qxd3#
- 1...Bh8
- 2.Qxd3#
- 1...Sa1
- 2.Qxd4#
- 1...Sce1
- 2.Qxd4#
- 1...Sge1
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sh4
- 2.Qf4#
- 1...e5
- 2.Qg6#
- 1...Rxa3
- 1.Be3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 8
- ADDED MATES = 18
- REMOVED MATES = 2
- Sets
- R(c);P_SPINS(a),S_CUTB(e)::S(F)
- R(c);OGATE,P_SPINS(a)::P(B),XR(c)
- B(e);N_GUARD,P_PINQ(G),P_SPINB(d)::S(F)
- S(a);P_SPINR(c),S_CUTB(e)::S(F)
- S(b);S_CUTB(e)::S(F)
- Tries
- Try
- R(C);XR(c)
- Threat
- R1(C),XB(e)
- Vars
- B(e);N_GUARD,P_SPINB(d)::QAR1(G),XB(e)
- B(e);N_GUARD,P_SPINB(d)::S(F)
- Refutation
- P(h);
- Try
- R(D);P_PINB(e),XB(d)
- Threat
- DUALS(3)
- Vars
- S(b);XB(E)::QAR1(G)
- P(h);::QAR1(G),XP(h)
- Refutation
- P(g);N_SPINB(e),XR(D)
- Try
- Actual
- B(E);
- Vars
- R(c);N_GUARD,P_SPINS(a),XR(C)::QAR1(G),XB(e)
- R(c);P_SPINS(a),XB(E)::S(F)
- B(e);N_GUARD,P_PINQ(G),P_SPINB(d),SBLOCK,XB(E)::S(F)
- S(a);N_GUARD,P_SPINR(c),XR(C)::QAR1(G),XB(e)
- S(a);P_SPINR(c),SBLOCK,XB(E)::S(F)
- S(a);N_GUARD,P_SPINR(c),XR(D)::QAR1(G),XB(e)
- S(b);SBLOCK,XB(E)::S(F)
- R(c);P_SPINS(a)::S(F)
- R(c);N_GUARD,P_SPINS(a)::QAR1(G),XB(e)
- B(d);P_SPINB(e)::QAR1(G)
- B(e);OGATE,P_PINQ(G),P_SPINB(d)::QAB1(G),XR(c)
- S(a);N_GUARD,P_SPINR(c)::QAR1(G),XB(e)
- S(b);N_GUARD::QAR1(G)
- S(b);N_GUARD::QAR1(G),XS(b)
- P(h);OGATE::QAB(G)
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).