MESON Chess Problem Database
Problem Display
PID: 2944 (8/2Q5/4pp1B/3p3N/1p2k3/1Nb2R1n/1p4P1/1K5n w - - 0 1)
Bolus, Andrew
Williams, Philip Hamilton
The Inquirer, 1914
#2
7 + 9
| 2681 | All Change Here! | 1919 |
SOLUTION
- SOUND
- Sets
- 1...Be1
- 2.Sxf6#
- 1...Bd2
- 2.Sxf6#
- 1...Bd4
- 2.Sd2#
- 1...Be5
- 2.Qc2#
- 1...S1f2
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sg1
- 2.Qf4#
- 1...S3f2
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sg5
- 2.Qf4#
- 1...d4
- 2.Sxf6#
- 1...e5
- 2.Sxf6#
- 1...f5
- 2.Re3#
- 1...Be1
- Tries
- 1.Bd2?
- 1...Bxd2
- 2.Sxf6#
- 1...Sf4
- 2.Qxf4#
- 1...d4
- 2.Sxf6#
- 1...Be5
- 2.Qc2#
- 1...S1f2
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sg1
- 2.Qf4#
- 1...S3f2
- 2.Qf4#
- 1...Sg5
- 2.Qf4#
- 1...e5
- 2.Sxf6#
- 1...f5
- 2.Re3#
- 1...Bd4!
- 1...Bxd2
- 1.Bg5?
- 1...Sxg5
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...d4
- 2.Sxf6#
- 1...Be1
- 2.Sxf6#
- 1...Bd2
- 2.Sxf6#
- 1...Bd4
- 2.Sd2#
- 1...Be5
- 2.Qc2#
- 1...S1f2
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sg1
- 2.Qf4#
- 1...S3f2
- 2.Qf4#
- 1...e5
- 2.Sxf6#
- 1...f5
- 2.Re3#
- 1...fxg5!
- 1...Sxg5
- 1.Bf8?
- 1...Sf4
- 2.Qxf4#
- 1...d4
- 2.Sxf6#
- 1...Be1
- 2.Sxf6#
- 1...Bd2
- 2.Sxf6#
- 1...Bd4
- 2.Sd2#
- 1...Be5
- 2.Qc2#
- 1...S1f2
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sg1
- 2.Qf4#
- 1...S3f2
- 2.Qf4#
- 1...Sg5
- 2.Qf4#
- 1...e5
- 2.Sxf6#
- 1...f5!
- 1...Sf4
- 1.Qd6?
- 1...Sf4
- 2.Qxf4#
- 1...Be1
- 2.Sxf6#
- 2.Qxe6#
- 1...Bd2
- 2.Sxf6#
- 2.Qxe6#
- 1...Bd4
- 2.Sd2#
- 1...S1f2
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sg1
- 2.Qf4#
- 1...S3f2
- 2.Qf4#
- 1...Sg5
- 2.Qf4#
- 1...d4
- 2.Sc5#
- 2.Sxf6#
- 2.Qxe6#
- 1...e5
- 2.Sxf6#
- 1...f5
- 2.Re3#
- 1...Be5!
- 1...Sf4
- 1.Qb8?
- 1...Sf4
- 2.Qxf4#
- 1...d4
- 2.Sxf6#
- 1...Be1
- 2.Sxf6#
- 1...Bd2
- 2.Sxf6#
- 1...Bd4
- 2.Sd2#
- 1...S1f2
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sg1
- 2.Qf4#
- 1...S3f2
- 2.Qf4#
- 1...Sg5
- 2.Qf4#
- 1...e5
- 2.Sxf6#
- 1...f5
- 2.Re3#
- 1...Be5!
- 1...Sf4
- 1.Qxc3?
- threat
- 2.Sd2#
- 2.Sc5#
- 2.Sxf6#
- 2.Qe1#
- 2.Qd4#
- 2.Qe3#
- 1...Sf4
- 2.Rxf4#
- 1...d4
- 2.Qxd4#
- 1...Sg3
- 2.Sd2#
- 2.Sc5#
- 2.Sxg3#
- 2.Sxf6#
- 2.Qd4#
- 2.Qe3#
- 1...Sg1
- 2.Sd2#
- 2.Sc5#
- 2.Sxf6#
- 2.Rf4#
- 2.Qd4#
- 2.Qe3#
- 1...e5
- 2.Sd2#
- 2.Sc5#
- 2.Sxf6#
- 2.Qe1#
- 2.Qc2#
- 2.Qd3#
- 2.Qe3#
- 1...f5
- 2.Sd2#
- 2.Sc5#
- 2.Sf6#
- 2.Re3#
- 2.Qe1#
- 2.Qd4#
- 2.Qe3#
- 1...bxc3!
- threat
- 1.Qh7+?
- 1...f5
- 2.Re3#
- 1...Ke5!
- 1...f5
- 1.Bd2?
- Keys
- 1.Bg7!
- 1...Sf4
- 2.Qxf4#
- 1...d4
- 2.Sxf6#
- 1...Be1
- 2.Sxf6#
- 1...Bd2
- 2.Sxf6#
- 1...Bd4
- 2.Sd2#
- 1...Be5
- 2.Qc2#
- 1...S1f2
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sg1
- 2.Qf4#
- 1...S3f2
- 2.Qf4#
- 1...Sg5
- 2.Qf4#
- 1...e5
- 2.Sxf6#
- 1...f5
- 2.Sc5#
- 1...Sf4
- 1.Bg7!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(c);N_GUARD::S(E),XP(i)
- B(c);N_GUARD,SBLOCK::S(C)
- B(c);OGATE,SBLOCK::QAB(G)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- S(d);N_GUARD::QAR1(G)
- S(d);N_GUARD::QAR1(G),XS(d)
- P(g);S_CUTB(c)::S(E),XP(i)
- P(h);S_CUTB(c)::S(E),XP(i)
- P(i);SBLOCK::R1(D)
- Tries
- Try
- B(F);
- Vars
- B(c);N_GUARD,XB(F)::S(E),XP(i)
- S(d);N_GUARD::QAR1(G),XS(d)
- P(g);S_CUTB(c)::S(E),XP(i)
- B(c);OGATE,SBLOCK::QAB(G)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- S(d);N_GUARD::QAR1(G)
- P(h);S_CUTB(c)::S(E),XP(i)
- P(i);SBLOCK::R1(D)
- Refutation
- B(c);
- Try
- B(F);
- Vars
- S(d);N_GUARD,XB(F)::QAR1(G)
- S(d);N_GUARD::QAR1(G),XS(d)
- P(g);S_CUTB(c)::S(E),XP(i)
- B(c);N_GUARD::S(E),XP(i)
- B(c);N_GUARD,SBLOCK::S(C)
- B(c);OGATE,SBLOCK::QAB(G)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- S(d);N_GUARD::QAR1(G)
- P(h);S_CUTB(c)::S(E),XP(i)
- P(i);SBLOCK::R1(D)
- Refutation
- P(i);XB(F)
- Try
- B(F);
- Vars
- S(d);N_GUARD::QAR1(G),XS(d)
- P(g);S_CUTB(c)::S(E),XP(i)
- B(c);N_GUARD::S(E),XP(i)
- B(c);N_GUARD,SBLOCK::S(C)
- B(c);OGATE,SBLOCK::QAB(G)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- S(d);N_GUARD::QAR1(G)
- P(h);S_CUTB(c)::S(E),XP(i)
- Refutation
- P(i);
- Try
- Q(G);
- Vars
- S(d);N_GUARD::QAR1(G),XS(d)
- B(c);N_GUARD,SBLOCK::S(C)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- S(d);N_GUARD::QAR1(G)
- P(h);S_CUTB(c)::S(E),XP(i)
- P(i);SBLOCK::R1(D)
- Refutation
- B(c);
- Try
- Q(G);
- Vars
- S(d);N_GUARD::QAR1(G),XS(d)
- P(g);S_CUTB(c)::S(E),XP(i)
- B(c);N_GUARD::S(E),XP(i)
- B(c);N_GUARD,SBLOCK::S(C)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- S(d);N_GUARD::QAR1(G)
- P(h);S_CUTB(c)::S(E),XP(i)
- P(i);SBLOCK::R1(D)
- Refutation
- B(c);
- Try
- Q(G);XB(c)
- Threat
- DUALS(6)
- Vars
- S(d);N_GUARD::R1(D),XS(d)
- P(g);::QAR1(G),XP(g)
- Refutation
- P(e);XQ(G)
- Try
- Q(G);CHECK
- Vars
- P(i);P_SPINP(i)::R1(D)
- Refutation
- K(f);P-FLIGHT
- Try
- Actual
- B(F);
- Vars
- S(d);N_GUARD::QAR1(G),XS(d)
- P(g);S_CUTB(c)::S(E),XP(i)
- B(c);N_GUARD::S(E),XP(i)
- B(c);N_GUARD,SBLOCK::S(C)
- B(c);OGATE,SBLOCK::QAB(G)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- S(d);N_GUARD::QAR1(G)
- P(h);S_CUTB(c)::S(E),XP(i)
- P(i);::S(C)
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).