MESON Chess Problem Database
Problem Display
PID: 17974 (8/8/B4nq1/K3prp1/P1R5/2BkPp1Q/4R3/bb1n2N1 w - - 0 1)
Mansfield, Comins
Probleemblad, 1952
#2
9 + 10
| 3550 | Complete Mansfield/II | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Bxc3+
- 2.Rb4#
- 1...Sxc3
- 2.Rd4#
- 1...Sxe3
- 2.Rd2#
- 1...Se4
- 2.Rc6#
- 1...f2
- 2.Rd2#
- 1...e4+
- 2.Rc5#
- 1...Bxc3+
- Tries
- 1.Be1?
- threat
- 2.Rb4#
- 2.Rd4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 1...Bc3+
- 2.Rb4#
- 1...e4+
- 2.Rc5#
- 1...Sxe3
- 2.Rd2#
- 1...Bd4
- 2.Rxd4#
- 1...Qf7
- 2.Rd4#
- 1...Qe8
- 2.Rd4#
- 1...Qg8
- 2.Rd4#
- 1...Rf4
- 2.Rd4#
- 2.Rxf4#
- 1...Ba2
- 2.Rd4#
- 1...Sb2
- 2.Rd4#
- 1...Sc3
- 2.Rd4#
- 1...Se4
- 2.Rc3#
- 2.Rd4#
- 2.Rc6#
- 1...Sg4
- 2.Rd4#
- 1...Sd5
- 2.Rd4#
- 1...Sh5
- 2.Rd4#
- 1...Sd7
- 2.Rd4#
- 1...Sh7
- 2.Rd4#
- 1...Se8
- 2.Rd4#
- 1...Sg8
- 2.Rd4#
- 1...g4
- 2.Rb4#
- 2.Rd4#
- 2.Rf4#
- 2.Rxg4#
- 1...fxe2!
- threat
- 1.Bb4?
- threat
- 2.Rd4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 1...e4+
- 2.Rc5#
- 1...Sxe3
- 2.Rd2#
- 1...Bd4
- 2.Rxd4#
- 1...Qf7
- 2.Rd4#
- 1...Qe8
- 2.Rd4#
- 1...Qg8
- 2.Rd4#
- 1...Rf4
- 2.Rd4#
- 2.Rxf4#
- 1...Ba2
- 2.Rd4#
- 1...Sb2
- 2.Rd4#
- 1...Sc3
- 2.Rd4#
- 1...Se4
- 2.Rc3#
- 2.Rd4#
- 2.Rc6#
- 1...Sg4
- 2.Rd4#
- 1...Sd5
- 2.Rd4#
- 1...Sh5
- 2.Rd4#
- 1...Sd7
- 2.Rd4#
- 1...Sh7
- 2.Rd4#
- 1...Se8
- 2.Rd4#
- 1...Sg8
- 2.Rd4#
- 1...g4
- 2.Rd4#
- 2.Rf4#
- 2.Rxg4#
- 1...fxe2!
- threat
- 1.Qxf5+?
- 1...Se4
- 2.Rc6#
- 1...e4
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rc8#
- 1...Qxf5!
- 1...Se4
- 1.Qxf3?
- threat
- 2.Rd2#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rc8#
- 1...Bxc3+
- 2.Rb4#
- 1...e4+
- 2.Rc5#
- 1...Sxc3
- 2.Rd4#
- 1...Qf7
- 2.Rd2#
- 1...Qe8
- 2.Rd2#
- 2.Rc6#
- 1...Qg8
- 2.Rd2#
- 1...Rf4
- 2.Rd2#
- 1...Ba2
- 2.Rd2#
- 1...Sb2
- 2.Rd2#
- 1...Se4
- 2.Rc6#
- 2.Qxe4#
- 1...Sg4
- 2.Rd2#
- 2.Rc6#
- 2.Qe4#
- 2.Qd5#
- 1...Sd5
- 2.Rd2#
- 2.Rc6#
- 2.Qe4#
- 2.Qxd5#
- 1...Sh5
- 2.Rd2#
- 2.Rc6#
- 2.Qe4#
- 2.Qd5#
- 1...Sd7
- 2.Rd2#
- 2.Rc6#
- 2.Qe4#
- 2.Qd5#
- 1...Sh7
- 2.Rd2#
- 2.Rc6#
- 2.Qe4#
- 2.Qd5#
- 1...Se8
- 2.Rd2#
- 2.Rc6#
- 2.Qe4#
- 2.Qd5#
- 1...Sg8
- 2.Rd2#
- 2.Rc6#
- 2.Qe4#
- 2.Qd5#
- 1...Rxf3!
- threat
- 1.Be1?
- Keys
- 1.Qf1!
- threat
- 2.Qxd1#
- 1...Bxc3+
- 2.Rb4#
- 1...e4+
- 2.Rc5#
- 1...Sxc3
- 2.Rd4#
- 1...Sxe3
- 2.Rd2#
- 1...fxe2
- 2.Qxe2#
- 1...Bc2
- 2.Re1#
- 1...Sb2
- 2.Qxb1#
- 1...Sf2
- 2.Qxb1#
- 1...Se4
- 2.Rc6#
- threat
- 1.Qf1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- B(a);CHECK,SBLOCK,XB(C)::B(I)+R(G)
- S(c);SBLOCK,XB(C)::B(I)+R(G),DCHECK
- S(c);SBLOCK,XP(D)::R1(B)
- S(i);SBLOCK::B(I)+R(G)
- P(e);::R1(B)
- P(f);CHECK,SBLOCK::B(I)+R(G)
- Tries
- Try
- B(C);
- Threat
- DUALS(5)
- Vars
- B(a);CHECK::B(I)+R(G)
- P(f);CHECK,SBLOCK::B(I)+R(G)
- S(c);SBLOCK,XP(D)::R1(B)
- B(a);::B(I)+R(G),DCHECK,XB(a)
- Q(j);::B(I)+R(G),DCHECK
- B(b);::B(I)+R(G),DCHECK
- S(c);::B(I)+R(G),DCHECK
- S(i);::B(I)+R(G),DCHECK
- Refutation
- P(e);XR(B)
- Try
- B(C);
- Threat
- DUALS(4)
- Vars
- P(f);CHECK,SBLOCK::B(I)+R(G)
- S(c);SBLOCK,XP(D)::R1(B)
- B(a);::B(I)+R(G),DCHECK,XB(a)
- Q(j);::B(I)+R(G),DCHECK
- B(b);::B(I)+R(G),DCHECK
- S(c);::B(I)+R(G),DCHECK
- S(i);::B(I)+R(G),DCHECK
- Refutation
- P(e);XR(B)
- Try
- Q(E);CHECK,XR(g)
- Vars
- S(i);P_SPINS(i)::B(I)+R(G)
- Refutation
- Q(j);XQ(E)
- Try
- Q(E);XP(e)
- Threat
- DUALS(5)
- Vars
- B(a);CHECK,SBLOCK,XB(C)::B(I)+R(G)
- P(f);CHECK::B(I)+R(G)
- S(c);SBLOCK,XB(C)::B(I)+R(G),DCHECK
- Q(j);::R1(B)
- R(g);::R1(B)
- B(b);::R1(B)
- S(c);::R1(B)
- Refutation
- R(g);XQ(E)
- Try
- Actual
- Q(E);
- Threat
- QAR2(E),XS(c)
- Vars
- B(a);CHECK,SBLOCK,XB(C)::B(I)+R(G)
- P(f);CHECK,SBLOCK::B(I)+R(G)
- S(c);SBLOCK,XB(C)::B(I)+R(G),DCHECK
- S(c);SBLOCK,XP(D)::QAB(E)+R(B),DCHECK
- P(e);OGATE,P_SPINP(e),XR(B)::QAB1(E),XP(e)
- B(b);SBLOCK::QAB(E)+R(B)
- S(c);OGATE::QAB(E),XB(b)
- S(i);SBLOCK::B(I)+R(G)
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).