MESON Chess Problem Database
Problem Display
PID: 16854 (q2n4/1r5B/2p5/2N5/p1p1N3/4p3/2k5/K3Q3 w - - 0 1)
Mansfield, Comins
Adventures in Composition, 1944
#2
5 + 8
| 3550 | Complete Mansfield/II | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Rb1+
- 2.Qxb1#
- 1...Rb2
- 2.Sf2#
- 2.Sc3#
- 2.Sg3#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 1...Rb3
- 2.Sc3#
- 1...Rb4
- 2.Sf2#
- 2.Sc3#
- 2.Sg3#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 1...Rb5
- 2.Sf2#
- 2.Sc3#
- 2.Sg3#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 1...Rb6
- 2.Sf2#
- 2.Sc3#
- 2.Sg3#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 1...Ra7
- 2.Qb1#
- 1...Rc7
- 2.Qb1#
- 1...Rd7
- 2.Qb1#
- 1...Re7
- 2.Qb1#
- 1...Rf7
- 2.Qb1#
- 1...Rg7
- 2.Qb1#
- 1...Rxh7
- 2.Qb1#
- 1...Rb8
- 2.Sf2#
- 2.Sc3#
- 2.Sg3#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 1...Sf7
- 2.Sf2#
- 2.Sc3#
- 2.Sg3#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 1...e2
- 2.Qd2#
- 1...Rb1+
- Tries
- 1.Sd2+?
- 1...Kc3
- 2.Sdb3#
- 2.Sf3#
- 1...Rxh7!
- 1...Kc3
- 1.Sb3?
- threat
- 2.Qb1#
- 1...Kxb3
- 2.Qc3#
- 1...Kd3
- 2.Sf2#
- 2.Sec5#
- 2.Qd1#
- 1...Rxb3
- 2.Sc3#
- 1...axb3+!
- threat
- 1.Sxb7?
- threat
- 2.Sec5#
- 2.Qb1#
- 1...Kb3
- 2.Qc3#
- 1...Kd3
- 2.Qd1#
- 1...Qc8
- 2.Qb1#
- 1...c5
- 2.Sexc5#
- 2.Qb1#
- 1...Qxb7!
- threat
- 1.Bf5?
- threat
- 2.Sf2#
- 2.Sc3#
- 2.Sg3#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 1...Rb1+
- 2.Qxb1#
- 1...Rb3
- 2.Sc3#
- 1...Rd7
- 2.Sd6#
- 2.Qb1#
- 1...Re7
- 2.Qb1#
- 1...Rf7
- 2.Sf6#
- 2.Qb1#
- 1...c3
- 2.Sd2#
- 2.Sf2#
- 2.Sxc3#
- 2.Sg3#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 1...Qc8!
- threat
- 1.Bg6?
- threat
- 2.Sf2#
- 2.Sc3#
- 2.Sg3#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 1...Rb1+
- 2.Qxb1#
- 1...Rb3
- 2.Sc3#
- 1...Rd7
- 2.Sd6#
- 2.Qb1#
- 1...Re7
- 2.Qb1#
- 1...Rf7
- 2.Sf6#
- 2.Qb1#
- 1...Rg7
- 2.Qb1#
- 1...c3
- 2.Sd2#
- 2.Sf2#
- 2.Sxc3#
- 2.Sg3#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 1...Qc8!
- threat
- 1.Sd2+?
- Keys
- 1.Sd7!
- threat
- 2.Sec5#
- 1...Rb1+
- 2.Qxb1#
- 1...Kb3
- 2.Qc3#
- 1...Kd3
- 2.Qd1#
- 1...Rxd7
- 2.Qb1#
- 1...Rb3
- 2.Sc3#
- 1...c5
- 2.Sexc5#
- threat
- 1.Sd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 7
- Sets
- R(f);CHECK,N_GUARD::QAB1(B),XR(f)
- R(f);N_GUARD::B(E)+S(C)
- R(f);N_GUARD::QAB1(B)
- R(f);N_GUARD,XB(E)::QAB1(B)
- P(b);N_GUARD::QAR1(B)
- Tries
- Try
- S(C);CHECK
- Refutation
- R(f);XB(E)
- Try
- S(D);
- Threat
- QAB1(B)
- Vars
- K(a);S_FLIGHT,XS(D)::QAR1(B)
- R(f);N_GUARD,SBLOCK,XS(D)::B(E)+S(C)
- Refutation
- P(c);CHECK,XS(D)
- Try
- S(D);XR(f)
- Threat
- DUALS(2)
- Vars
- K(a);S_FLIGHT::QAR1(B)
- K(a);S_FLIGHT::QAR2(B)
- Q(g);::QAB1(B)
- Refutation
- Q(g);XS(D)
- Try
- B(E);
- Threat
- DUALS(6)
- Vars
- R(f);CHECK,N_GUARD::QAB1(B),XR(f)
- R(f);::B(E)+S(C)
- R(f);N_GUARD::QAB1(B)
- Refutation
- Q(g);
- Try
- B(E);
- Threat
- DUALS(6)
- Vars
- R(f);CHECK,N_GUARD::QAB1(B),XR(f)
- R(f);::B(E)+S(C)
- R(f);N_GUARD::QAB1(B)
- Refutation
- Q(g);
- Try
- Actual
- S(D);
- Threat
- B(E)+S(C)
- Vars
- R(f);CHECK,N_GUARD::QAB1(B),XR(f)
- K(a);S_FLIGHT::QAR1(B)
- K(a);S_FLIGHT::QAR2(B)
- R(f);N_GUARD,XS(D)::QAB1(B)
- R(f);SBLOCK::B(E)+S(C)
- P(e);::B(E)+S(C),XP(e)
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).