MESON Chess Problem Database
Problem Display
PID: 11435 (3R2B1/4B2Q/4PP1P/2n1k3/3n2K1/N3P1N1/8/2rr4 w - - 0 1)
Mansfield, Comins
The Springbok, 1938
#2
11 + 5
| 3550 | Complete Mansfield/II | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Sc4#
- 1...Rb1
- 2.Sc4#
- 1...Rc4
- 2.Sxc4#
- 1...Re1
- 2.exd4#
- 1...Rf1
- 2.exd4#
- 1...Rg1
- 2.exd4#
- 1...Rh1
- 2.exd4#
- 1...Sc2
- 2.Sc4#
- 2.Qf5#
- 1...Se2
- 2.Qf5#
- 1...Sdb3
- 2.Qf5#
- 1...Sf3
- 2.Qf5#
- 1...Sb5
- 2.Qf5#
- 1...Sf5
- 2.Qxf5#
- 1...Sc6
- 2.Qf5#
- 1...Sdxe6
- 2.Qf5#
- 1...Scb3
- 2.Qe4#
- 1...Sd3
- 2.Qe4#
- 2.exd4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sa6
- 2.Qe4#
- 1...Scxe6
- 2.Qe4#
- 1...Sb7
- 2.Qe4#
- 1...Sd7
- 2.Qe4#
- 1...Ra1
- Tries
- 1.Bd6+?
- 1...Kxf6
- 2.Sh5#
- 2.Rf8#
- 2.Qf7#
- 2.Qg7#
- 1...Kd5!
- 1...Kxf6
- 1.Qc2?
- threat
- 2.Sc4#
- 1...Sd7
- 2.Qe4#
- 1...Rxc2!
- threat
- 1.Qd3?
- threat
- 2.exd4#
- 1...Sdxe6
- 2.Rd5#
- 2.Qf5#
- 1...Scxe6
- 2.Qe4#
- 1...Sd7
- 2.Qe4#
- 1...Rc4
- 2.Sxc4#
- 1...Sc2
- 2.Sc4#
- 2.Rd5#
- 2.Qf5#
- 1...Se2
- 2.Rd5#
- 2.Qf5#
- 1...Sdb3
- 2.Rd5#
- 2.Qf5#
- 1...Sf3
- 2.Rd5#
- 2.Qf5#
- 1...Sb5
- 2.Rd5#
- 2.Qf5#
- 1...Sf5
- 2.Rd5#
- 2.Qxf5#
- 1...Sc6
- 2.Rd5#
- 2.Qf5#
- 1...Scb3
- 2.Qe4#
- 1...Rxd3!
- threat
- 1.e4?
- threat
- 2.Rd5#
- 1...Sdxe6
- 2.Qf5#
- 1...Sxe4
- 2.Qxe4#
- 1...Sc2
- 2.Sc4#
- 2.Qf5#
- 1...Se2
- 2.Qf5#
- 1...Sdb3
- 2.Qf5#
- 1...Sf3
- 2.Qf5#
- 1...Sb5
- 2.Qf5#
- 1...Sf5
- 2.Qxf5#
- 1...Sc6
- 2.Qf5#
- 1...Sd7!
- threat
- 1.Bd6+?
- Keys
- 1.Qb1!
- threat
- 2.Qb8#
- 1...Rxb1
- 2.Sc4#
- 1...Sdxe6
- 2.Qf5#
- 1...Scxe6
- 2.Qe4#
- 1...Sd7
- 2.Qe4#
- 1...Sc2
- 2.Sc4#
- 1...Se2
- 2.Qf5#
- 1...Sdb3
- 2.Qf5#
- 1...Sf3
- 2.Qf5#
- 1...Sb5
- 2.Qf5#
- 1...Sf5
- 2.Qxf5#
- 1...Sc6
- 2.Qf5#
- 1...Scb3
- 2.Qe4#
- 1...Sd3
- 2.exd4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sa6
- 2.Qe4#
- 1...Sb7
- 2.Qe4#
- threat
- 1.Qb1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- R(a);N_GUARD::S(A)
- R(a);N_GUARD::S(A),XR(a)
- R(b);N_GUARD::P(B),XS(c)
- R(b);N_GUARD,P_PINS(C)::P(B),XS(c)
- S(c);N_GUARD::QAR1(I)
- S(c);N_GUARD::QAR1(I),XS(c)
- S(c);N_GUARD,XP(E)::QAR1(I)
- S(d);N_GUARD::QAR1(I)
- S(d);N_GUARD::QAR1(I),XS(d)
- S(d);N_GUARD,XP(E)::QAR1(I)
- Tries
- Try
- B(H);CHECK
- Refutation
- K(e);P-FLIGHT
- Try
- Q(I);
- Threat
- S(A)
- Vars
- S(d);N_GUARD::QAR1(I)
- Refutation
- R(a);XQ(I)
- Try
- Q(I);
- Threat
- P(B),XS(c)
- Vars
- S(d);N_GUARD,XP(E)::QAR1(I)
- S(d);N_GUARD::QAR1(I)
- R(a);N_GUARD::S(A),XR(a)
- Refutation
- R(b);XQ(I)
- Try
- P(B);
- Threat
- R1(J)
- Vars
- S(c);N_GUARD,XP(E)::QAR1(I)
- S(d);OGATE,XP(B)::QAR1(I),XS(d)
- S(c);N_GUARD::QAR1(I)
- S(c);N_GUARD::QAR1(I),XS(c)
- Refutation
- S(d);
- Try
- Actual
- Q(I);
- Threat
- QAB(I)
- Vars
- R(a);N_GUARD,XQ(I)::S(A)
- S(c);N_GUARD,XP(E)::QAR1(I)
- S(d);N_GUARD,XP(E)::QAR1(I)
- S(d);N_GUARD::QAR1(I)
- S(c);S_CUTR(a)::S(A)
- S(c);N_GUARD::QAR1(I)
- S(c);N_GUARD::QAR1(I),XS(c)
- S(d);S_CUTR(b)::P(B),XS(c)
- S(d);N_GUARD::QAR1(I),XS(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).