MESON Chess Problem Database
Problem Display
PID: 2856 (8/7K/1pQn4/1pp5/1Bk1p2p/Pp1NPp1r/7q/1B2N1nr w - - 0 1)
Williams, Philip Hamilton
Morning Post, 1894
#2
8 + 13
| 2638 | White to Play | 1913 |
| 2681 | All Change Here! | 1919 |
SOLUTION
- SOUND
- Sets
- 1...Qg3
- 2.Sb2#
- 1...Qf4
- 2.Sb2#
- 1...Qe5
- 2.Sxe5#
- 1...Qa2
- 2.Se5#
- 1...Qb2
- 2.Sxb2#
- 1...Qc2
- 2.Se5#
- 1...Qd2
- 2.Se5#
- 1...Qe2
- 2.Se5#
- 1...Qf2
- 2.Se5#
- 1...Qg2
- 2.Se5#
- 1...Rg3
- 2.Se5#
- 1...Se2
- 2.Sb2#
- 1...Sf5
- 2.Qe6#
- 1...Sb7
- 2.Qxe4#
- 2.Qe6#
- 1...Sf7
- 2.Qxe4#
- 2.Qe6#
- 1...Sc8
- 2.Qxe4#
- 2.Qe6#
- 1...Se8
- 2.Qxe4#
- 2.Qe6#
- 1...b2
- 2.Ba2#
- 1...f2
- 2.Sb2#
- 1...exd3
- 2.Bxd3#
- 1...Qg3
- Tries
- 1.Kh8?
- 1...Qe5+
- 2.Sxe5#
- 1...Qb2+
- 2.Sxb2#
- 1...exd3
- 2.Bxd3#
- 1...b2
- 2.Ba2#
- 1...Qg3
- 2.Sb2#
- 1...Qf4
- 2.Sb2#
- 1...Qa2
- 2.Se5#
- 1...Qc2
- 2.Se5#
- 1...Qd2
- 2.Se5#
- 1...Qe2
- 2.Se5#
- 1...Qf2
- 2.Se5#
- 1...Qg2
- 2.Se5#
- 1...Rg3
- 2.Se5#
- 1...Se2
- 2.Sb2#
- 1...Sf5
- 2.Qe6#
- 1...Sb7
- 2.Qxe4#
- 2.Qe6#
- 1...Sc8
- 2.Qxe4#
- 2.Qe6#
- 1...Se8
- 2.Qxe4#
- 2.Qe6#
- 1...f2
- 2.Sb2#
- 1...Sf7+!
- 1...Qe5+
- 1.Sxc5?
- threat
- 2.Scd3#
- 2.Sa4#
- 2.Sxe4#
- 2.Sa6#
- 2.Se6#
- 2.Sb7#
- 2.Sd7#
- 1...bxc5
- 2.Qxc5#
- 1...Sb7
- 2.Sxb7#
- 2.Qxe4#
- 2.Qe6#
- 1...b2
- 2.Ba2#
- 1...Qe5!
- threat
- 1.Bc2?
- threat
- 2.Sb2#
- 1...Qxc2
- 2.Se5#
- 1...exd3
- 2.Bxd3#
- 1...Qe5
- 2.Sxe5#
- 1...b2
- 2.Sxb2#
- 1...bxc2!
- threat
- 1.Bd2?
- threat
- 2.Sb2#
- 1...exd3
- 2.Bxd3#
- 1...b2
- 2.Ba2#
- 1...Qe5
- 2.Sxe5#
- 1...Qxd2!
- threat
- 1.Ba5?
- 1...exd3
- 2.Bxd3#
- 1...bxa5
- 2.Qxc5#
- 1...b2
- 2.Ba2#
- 1...Qg3
- 2.Sb2#
- 1...Qf4
- 2.Sb2#
- 1...Qe5
- 2.Sxe5#
- 1...Qa2
- 2.Se5#
- 1...Qb2
- 2.Sxb2#
- 1...Qc2
- 2.Se5#
- 1...Qd2
- 2.Se5#
- 1...Qe2
- 2.Se5#
- 1...Qf2
- 2.Se5#
- 1...Qg2
- 2.Se5#
- 1...Rg3
- 2.Se5#
- 1...Se2
- 2.Sb2#
- 1...Sf5
- 2.Qe6#
- 1...Sb7
- 2.Qxe4#
- 2.Qe6#
- 1...Sf7
- 2.Qxe4#
- 2.Qe6#
- 1...Sc8
- 2.Qxe4#
- 2.Qe6#
- 1...Se8
- 2.Qxe4#
- 2.Qe6#
- 1...f2
- 2.Sb2#
- 1...b4!
- 1...exd3
- 1.Qb7?
- 1...exd3
- 2.Bxd3#
- 1...cxb4
- 2.Qc6#
- 1...b2
- 2.Ba2#
- 1...Qg3
- 2.Sb2#
- 1...Qf4
- 2.Sb2#
- 1...Qe5
- 2.Sxe5#
- 1...Qa2
- 2.Se5#
- 1...Qb2
- 2.Sxb2#
- 1...Qc2
- 2.Se5#
- 1...Qd2
- 2.Se5#
- 1...Qe2
- 2.Se5#
- 1...Qf2
- 2.Se5#
- 1...Qg2
- 2.Se5#
- 1...Rg3
- 2.Se5#
- 1...Se2
- 2.Sb2#
- 1...Sf5
- 2.Qf7#
- 1...Sf7
- 2.Qxe4#
- 2.Qxf7#
- 1...Sc8
- 2.Qxe4#
- 2.Qf7#
- 1...Se8
- 2.Qxe4#
- 2.Qf7#
- 1...f2
- 2.Sb2#
- 1...Sxb7!
- 1...exd3
- 1.Qxd6?
- threat
- 2.Qe6#
- 1...cxb4
- 2.Qd4#
- 2.Qc6#
- 1...Qe5
- 2.Sxe5#
- 1...Qxd6!
- threat
- 1.Kh8?
- Keys
- 1.Qa8!
- 1...exd3
- 2.Bxd3#
- 1...cxb4
- 2.Qc6#
- 1...Sb7
- 2.Qg8#
- 1...b2
- 2.Ba2#
- 1...Qe5
- 2.Sxe5#
- 1...Qg3
- 2.Sb2#
- 1...Qf4
- 2.Sb2#
- 1...Qa2
- 2.Se5#
- 1...Qb2
- 2.Sxb2#
- 1...Qc2
- 2.Se5#
- 1...Qd2
- 2.Se5#
- 1...Qe2
- 2.Se5#
- 1...Qf2
- 2.Se5#
- 1...Qg2
- 2.Se5#
- 1...Rg3
- 2.Se5#
- 1...Se2
- 2.Sb2#
- 1...Sf5
- 2.Qg8#
- 1...Sf7
- 2.Qxe4#
- 1...Sc8
- 2.Qxe4#
- 1...Se8
- 2.Qxe4#
- 1...f2
- 2.Sb2#
- 1...exd3
- 1.Qa8!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- Q(c);N_GUARD::S(D)
- Q(c);N_GUARD::S(D),XQ(c)
- R(f);S_CUTQ(c)::S(D)
- S(a);S_CUTQ(c)::S(D)
- S(m);OGATE::QAB(G)
- P(d);OGATEB::B(A)
- P(e);S_CUTQ(c)::S(D)
- P(h);OGATE,XS(D)::B(A),XP(h)
- Tries
- Try
- K(H);P-FLIGHT
- Vars
- Q(c);CHECK,N_GUARD::S(D),XQ(c)
- P(h);OGATE,XS(D)::B(A),XP(h)
- P(d);OGATEB::B(A)
- Q(c);N_GUARD::S(D)
- R(f);S_CUTQ(c)::S(D)
- S(a);S_CUTQ(c)::S(D)
- S(m);OGATE::QAB(G)
- P(e);S_CUTQ(c)::S(D)
- Refutation
- S(m);CHECK
- Try
- S(D);XP(k)
- Threat
- DUALS(7)
- Vars
- P(l);OGATE,P_SPINP(l),XS(D)::QAR1(G),XP(l)
- P(d);OGATEB::B(A)
- Refutation
- Q(c);
- Try
- B(A);
- Threat
- S(D)
- Vars
- Q(c);N_GUARD,XB(A)::S(D)
- P(h);OGATE,XS(D)::B(A),XP(h)
- Q(c);N_GUARD::S(D),XQ(c)
- P(d);::S(D),XP(d)
- Refutation
- P(d);XB(A)
- Try
- B(F);
- Threat
- S(D)
- Vars
- P(h);OGATE,XS(D)::B(A),XP(h)
- P(d);OGATEB::B(A)
- Q(c);N_GUARD::S(D),XQ(c)
- Refutation
- Q(c);XB(F)
- Try
- B(F);
- Vars
- P(h);OGATE,XS(D)::B(A),XP(h)
- P(l);N_GUARD,XB(F)::QAR1(G),XP(k)
- P(d);OGATEB::B(A)
- Q(c);N_GUARD::S(D)
- Q(c);N_GUARD::S(D),XQ(c)
- R(f);S_CUTQ(c)::S(D)
- S(a);S_CUTQ(c)::S(D)
- S(m);OGATE::QAB(G)
- P(e);S_CUTQ(c)::S(D)
- Refutation
- P(j);
- Try
- Q(G);N_PINP(k)
- Vars
- P(h);OGATE,XS(D)::B(A),XP(h)
- P(k);OGATEB,XB(F)::QAR2(G)
- P(d);OGATEB::B(A)
- Q(c);N_GUARD::S(D)
- Q(c);N_GUARD::S(D),XQ(c)
- R(f);S_CUTQ(c)::S(D)
- S(a);S_CUTQ(c)::S(D)
- S(m);N_GUARD::QAB(G)
- P(e);S_CUTQ(c)::S(D)
- Refutation
- S(m);XQ(G)
- Try
- Q(G);N_PINP(k),XS(m)
- Threat
- QAB(G)
- Vars
- Q(c);N_GUARD::S(D),XQ(c)
- Refutation
- Q(c);XQ(G)
- Try
- Actual
- Q(G);N_PINP(k)
- Vars
- P(h);OGATE,XS(D)::B(A),XP(h)
- P(k);OGATEB,XB(F)::QAR2(G)
- S(m);N_GUARD::QAB(G)
- P(d);OGATEB::B(A)
- Q(c);N_GUARD::S(D),XQ(c)
- Q(c);N_GUARD::S(D)
- R(f);S_CUTQ(c)::S(D)
- S(a);S_CUTQ(c)::S(D)
- S(m);N_GUARD::QAR2(G),XP(h)
- P(e);S_CUTQ(c)::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).