MESON Chess Problem Database
Problem Display
PID: 156979 (8/2n5/2B1pR1P/1P1rk3/3N3p/7N/1B3R2/1K4Q1 w - - 0 1)
Butler, Henry William
The Field, 0000
#2
10 + 5
| 15351 | SCPF/BCPS Black Books | 2016 |
SOLUTION
- SOUND
- Sets
- 1...Rxd4
- 2.Qh2#
- 1...Rxb5
- 2.Sxb5#
- 2.Qh2#
- 1...Rc5
- 2.Qh2#
- 1...Rd6
- 2.Sf3#
- 2.Qh2#
- 2.Qe1#
- 2.Qg5#
- 1...Rd7
- 2.Qh2#
- 1...Rd8
- 2.Qh2#
- 1...Sxb5
- 2.Rxe6#
- 1...Sa6
- 2.Rxe6#
- 1...Sa8
- 2.Rxe6#
- 1...Se8
- 2.Rxe6#
- 1...Rxd4
- Tries
- 1.Sc2+?
- 1...Ke4
- 2.Qg6#
- 1...Rd4
- 2.Qh2#
- 1...Kd6!
- 1...Ke4
- 1.Sf5+?
- 1...Rd4
- 2.Bxd4#
- 1...Ke4!
- 1...Rd4
- 1.Re2+?
- 1...Kxf6
- 2.Qg7#
- 1...Kd6!
- 1...Kxf6
- 1.R2f3?
- 1...Ke4
- 2.Re3#
- 2.Qe3#
- 2.Qe1#
- 1...Rxd4
- 2.Qh2#
- 2.Qxd4#
- 1...Rxb5
- 2.Sxb5#
- 2.Qh2#
- 1...Sxb5
- 2.Rxe6#
- 1...Rc5
- 2.Qh2#
- 1...Rd6
- 2.Qh2#
- 2.Qe3#
- 2.Qe1#
- 2.Qg5#
- 1...Rd7
- 2.Qh2#
- 1...Rd8
- 2.Qh2#
- 1...Sa6
- 2.Rxe6#
- 1...Sa8
- 2.Rxe6#
- 1...Se8
- 2.Rxe6#
- 1...Kd6!
- 1...Ke4
- 1.Qd1?
- 1...Ke4
- 2.Re2#
- 2.Qe2#
- 1...Rxd4
- 2.Qxd4#
- 1...Rxb5
- 2.Sb3#
- 2.Sf3#
- 2.Sxb5#
- 1...Sxb5
- 2.Rxe6#
- 1...Rc5
- 2.Sf3#
- 1...Rd6
- 2.Sf3#
- 2.Qe2#
- 2.Qh5#
- 2.Qe1#
- 1...Rd7
- 2.Sf3#
- 1...Rd8
- 2.Sf3#
- 1...Sa6
- 2.Rxe6#
- 1...Sa8
- 2.Rxe6#
- 1...Se8
- 2.Rxe6#
- 1...Kd6!
- 1...Ke4
- 1.Qh1?
- 1...Rxd4
- 2.Qh2#
- 1...Rxb5
- 2.Sxb5#
- 2.Qh2#
- 1...Sxb5
- 2.Rxe6#
- 1...Rc5
- 2.Qh2#
- 1...Rd6
- 2.Sf3#
- 2.Qe4#
- 2.Qe1#
- 2.Qh2#
- 1...Rd7
- 2.Qh2#
- 1...Rd8
- 2.Qh2#
- 1...Sa6
- 2.Rxe6#
- 1...Sa8
- 2.Rxe6#
- 1...Se8
- 2.Rxe6#
- 1...Kd6!
- 1...Rxd4
- 1.Qg2?
- 1...Rxd4
- 2.Qh2#
- 1...Rxb5
- 2.Sxb5#
- 2.Qh2#
- 1...Sxb5
- 2.Rxe6#
- 1...Rc5
- 2.Qh2#
- 1...Rd6
- 2.Sf3#
- 2.Qe4#
- 2.Qh2#
- 2.Qg5#
- 1...Rd7
- 2.Qh2#
- 1...Rd8
- 2.Qh2#
- 1...Sa6
- 2.Rxe6#
- 1...Sa8
- 2.Rxe6#
- 1...Se8
- 2.Rxe6#
- 1...Kd6!
- 1...Rxd4
- 1.Qg3+?
- 1...Ke4
- 2.Sg5#
- 2.Re2#
- 1...hxg3!
- 1...Ke4
- 1.Sc2+?
- Keys
- 1.Rd2!
- 1...Ke4
- 2.Qe1#
- 1...Kd6
- 2.Sf5#
- 1...Kxf6
- 2.Qg7#
- 1...Rxd4
- 2.Qxd4#
- 1...Rxb5
- 2.Sb3#
- 2.Sf3#
- 2.Sxb5#
- 1...Sxb5
- 2.Rxe6#
- 1...Rc5
- 2.Sf3#
- 1...Rd6
- 2.Sf3#
- 2.Qg5#
- 1...Rd7
- 2.Sf3#
- 1...Rd8
- 2.Sf3#
- 1...Sa6
- 2.Rxe6#
- 1...Sa8
- 2.Rxe6#
- 1...Se8
- 2.Rxe6#
- 1...Ke4
- 1.Rd2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 4
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- R(b);P_SPINR(b),XS(F)::QAB(B)
- R(b);::QAB(B)
- S(e);N_GUARD,XP(G)::R1(I),XP(d)
- S(e);N_GUARD::R1(I),XP(d)
- Tries
- Try
- S(F);CHECK
- Vars
- K(c);P-FLIGHT,P_SPINR(b)::QAB(B)
- R(b);P_SPINR(b)::QAB(B)
- Refutation
- K(c);P_SPINP(d),S_FLIGHT
- Try
- S(F);CHECK
- Vars
- R(b);N_GUARD,P_SPINR(b)::B(C),XR(b)
- Refutation
- K(c);P-FLIGHT,P_SPINR(b)
- Try
- R(D);CHECK
- Vars
- K(c);S_FLIGHT,XR(I)::QAB1(B)
- Refutation
- K(c);P_SPINP(d),S_FLIGHT
- Try
- R(D);
- Vars
- S(e);N_GUARD,XP(G)::R1(I),XP(d)
- R(b);::QAB(B)
- S(e);N_GUARD::R1(I),XP(d)
- Refutation
- K(c);P_SPINP(d),S_FLIGHT
- Try
- Q(B);
- Vars
- R(b);OGATE,P_SPINR(b),XS(F)::QAB1(B),XR(b)
- S(e);N_GUARD,XP(G)::R1(I),XP(d)
- R(b);::B(C)+S(F),DCHECK
- S(e);N_GUARD::R1(I),XP(d)
- Refutation
- K(c);P_SPINP(d),S_FLIGHT
- Try
- Q(B);
- Vars
- R(b);P_SPINR(b),XS(F)::QAB(B)
- S(e);N_GUARD,XP(G)::R1(I),XP(d)
- R(b);::QAB(B)
- S(e);N_GUARD::R1(I),XP(d)
- Refutation
- K(c);P_SPINP(d),S_FLIGHT
- Try
- Q(B);
- Vars
- R(b);P_SPINR(b),XS(F)::QAB(B)
- S(e);N_GUARD,XP(G)::R1(I),XP(d)
- R(b);::QAB(B)
- S(e);N_GUARD::R1(I),XP(d)
- Refutation
- K(c);P_SPINP(d),S_FLIGHT
- Try
- Q(B);CHECK
- Refutation
- P(a);XQ(B)
- Try
- Actual
- R(D);
- Vars
- K(c);P-FLIGHT,P_SPINR(b)::QAR(B)
- K(c);P_SPINP(d),S_FLIGHT::S(F)
- K(c);OGATEB,S_FLIGHT,XR(I)::QAB1(B)
- R(b);OGATE,P_SPINR(b),XS(F)::QAB1(B),XR(b)
- S(e);N_GUARD,XP(G)::R1(I),XP(d)
- R(b);::B(C)+S(F),DCHECK
- S(e);N_GUARD::R1(I),XP(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).