MESON Chess Problem Database
Problem Display
PID: 168 (B5r1/8/P1R1N3/2Nk3p/K3R2r/BP6/3p3b/7Q w - - 0 1)
Mansfield, Comins
1st Prize, Chess, 1950
#2
10 + 6
| 4258 | Brian Harley Award | 1950 |
| 81 | Chess | 1951 |
| 3105 | FIDE Album (1945-1955) | 1964 |
| 3550 | Complete Mansfield/II | 1997 |
| 136 | Problem Observer | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rxe4+
- 2.Qxe4#
- 1...Rf4
- 2.Sc7#
- 1...Rg1
- 2.Rb6#
- 1...Rg2
- 2.Rb6#
- 1...Rg3
- 2.Sc7#
- 2.Rb6#
- 1...Rg4
- 2.Rb6#
- 1...Rg5
- 2.Rb6#
- 1...Rg6
- 2.Rb6#
- 1...Bg1
- 2.Sc7#
- 1...Be5
- 2.Rd4#
- 1...Bd6
- 2.Rc8#
- 1...Bc7
- 2.Sxc7#
- 1...Bb8
- 2.Rb6#
- 1...d1Q
- 2.Qxd1#
- 1...d1S
- 2.Qxd1#
- 1...d1B
- 2.Qxd1#
- 1...d1R
- 2.Qxd1#
- 1...Rxe4+
- Tries
- 1.Sd3?
- threat
- 2.Sb4#
- 2.Rd4#
- 2.Rg4#
- 2.Rd6#
- 2.Rc8#
- 1...Rxa8
- 2.Sb4#
- 2.Rd4#
- 2.Rf4#
- 2.Rg4#
- 2.Rxh4#
- 1...Rg2
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rcc4#
- 2.Rb6#
- 2.Rd6#
- 2.Rc7#
- 2.Rc8#
- 1...d1Q
- 2.Sb4#
- 2.Rd4#
- 2.Rd6#
- 2.Rc8#
- 1...d1B
- 2.Sb4#
- 2.Rd4#
- 2.Rd6#
- 2.Rc8#
- 1...d1R
- 2.Sb4#
- 2.Rd4#
- 2.Rd6#
- 2.Rc8#
- 1...Rh3
- 2.Sb4#
- 2.Rd4#
- 2.Re5#
- 2.Rd6#
- 2.Rc8#
- 1...Rf4
- 2.Sb4#
- 2.Sc7#
- 2.Rd4#
- 2.Rd6#
- 2.Rc8#
- 1...Rhg4
- 2.Sb4#
- 2.Rd4#
- 2.Rxg4#
- 2.Rd6#
- 2.Rc8#
- 1...Rg1
- 2.Sb4#
- 2.Rd4#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rcc4#
- 2.Rb6#
- 2.Rd6#
- 2.Rc7#
- 2.Rc8#
- 1...Rg3
- 2.Sb4#
- 2.Sc7#
- 2.Rd4#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rcc4#
- 2.Rb6#
- 2.Rd6#
- 2.Rc7#
- 2.Rc8#
- 1...Rgg4
- 2.Sb4#
- 2.Rd4#
- 2.Rxg4#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rcc4#
- 2.Rb6#
- 2.Rd6#
- 2.Rc7#
- 2.Rc8#
- 1...Rg7
- 2.Sb4#
- 2.Rd4#
- 2.Rg4#
- 2.Rd6#
- 2.Rc7#
- 1...Rb8
- 2.Rd4#
- 2.Rf4#
- 2.Rg4#
- 2.Rxh4#
- 2.Rd6#
- 1...Rc8
- 2.Sb4#
- 2.Rd4#
- 2.Rf4#
- 2.Rg4#
- 2.Rxh4#
- 2.Rd6#
- 2.Rxc8#
- 1...Rf8
- 2.Sb4#
- 2.Rd4#
- 2.Rf4#
- 2.Rd6#
- 2.Rc8#
- 1...Bg1
- 2.Sb4#
- 2.Sc7#
- 2.Rd4#
- 2.Rd6#
- 2.Rc8#
- 1...Bg3
- 2.Sb4#
- 2.Rd4#
- 2.Rxh4#
- 2.Rd6#
- 2.Rc8#
- 1...Bf4
- 2.Sb4#
- 2.Rd4#
- 2.Re5#
- 2.Rd6#
- 2.Rc8#
- 1...Be5
- 2.Sb4#
- 2.Rd4#
- 2.Rd6#
- 1...Bd6
- 2.Rc5#
- 2.Rxd6#
- 2.Rc8#
- 1...Bc7
- 2.Sb4#
- 2.Sxc7#
- 2.Rd4#
- 2.Rd6#
- 1...Bb8
- 2.Sb4#
- 2.Rd4#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rcc4#
- 2.Rb6#
- 2.Rd6#
- 2.Rc7#
- 2.Rc8#
- 1...Rxe4+!
- threat
- 1.Sd7?
- threat
- 2.Sb6#
- 2.Sf6#
- 2.Rd4#
- 2.Rg4#
- 2.Rd6#
- 2.Rc8#
- 1...Rxa8
- 2.Rd4#
- 2.Rf4#
- 2.Rg4#
- 2.Rxh4#
- 1...Rg2
- 2.Sf6#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rcc4#
- 2.Rb6#
- 2.Rd6#
- 2.Rc7#
- 2.Rc8#
- 1...d1Q
- 2.Sb6#
- 2.Sf6#
- 2.Rd4#
- 2.Rd6#
- 2.Rc8#
- 1...d1B
- 2.Sb6#
- 2.Sf6#
- 2.Rd4#
- 2.Rd6#
- 2.Rc8#
- 1...d1R
- 2.Sb6#
- 2.Sf6#
- 2.Rd4#
- 2.Rd6#
- 2.Rc8#
- 1...Rh3
- 2.Sb6#
- 2.Sf6#
- 2.Rd4#
- 2.Re5#
- 2.Rd6#
- 2.Rc8#
- 1...Rf4
- 2.Sc7#
- 2.Sb6#
- 2.Rd4#
- 2.Rd6#
- 2.Rc8#
- 1...Rhg4
- 2.Sb6#
- 2.Sf6#
- 2.Rd4#
- 2.Rxg4#
- 2.Rd6#
- 2.Rc8#
- 1...Rg1
- 2.Sb6#
- 2.Sf6#
- 2.Rd4#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rcc4#
- 2.Rb6#
- 2.Rd6#
- 2.Rc7#
- 2.Rc8#
- 1...Rg3
- 2.Sc7#
- 2.Sb6#
- 2.Sf6#
- 2.Rd4#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rcc4#
- 2.Rb6#
- 2.Rd6#
- 2.Rc7#
- 2.Rc8#
- 1...Rgg4
- 2.Sb6#
- 2.Sf6#
- 2.Rd4#
- 2.Rxg4#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rcc4#
- 2.Rb6#
- 2.Rd6#
- 2.Rc7#
- 2.Rc8#
- 1...Rg6
- 2.Sb6#
- 2.Rd4#
- 2.Rg4#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rcc4#
- 2.Rb6#
- 2.Rd6#
- 2.Rc7#
- 2.Rc8#
- 1...Rb8
- 2.Sf6#
- 2.Rd4#
- 2.Rf4#
- 2.Rg4#
- 2.Rxh4#
- 2.Rd6#
- 1...Rc8
- 2.Sb6#
- 2.Sf6#
- 2.Rd4#
- 2.Rf4#
- 2.Rg4#
- 2.Rxh4#
- 2.Rd6#
- 2.Rxc8#
- 1...Rf8
- 2.Sb6#
- 2.Rd4#
- 2.Rf4#
- 2.Rd6#
- 2.Rc8#
- 1...Bg1
- 2.Sc7#
- 2.Sf6#
- 2.Rd4#
- 2.Rd6#
- 2.Rc8#
- 1...Bg3
- 2.Sb6#
- 2.Sf6#
- 2.Rd4#
- 2.Rxh4#
- 2.Rd6#
- 2.Rc8#
- 1...Bf4
- 2.Sb6#
- 2.Sf6#
- 2.Rd4#
- 2.Re5#
- 2.Rd6#
- 2.Rc8#
- 1...Be5
- 2.Sb6#
- 2.Rd4#
- 2.Rd6#
- 1...Bd6
- 2.Sb6#
- 2.Sf6#
- 2.Rc5#
- 2.Rxd6#
- 2.Rc8#
- 1...Bc7
- 2.Sxc7#
- 2.Sf6#
- 2.Rd4#
- 2.Rd6#
- 1...Bb8
- 2.Sb6#
- 2.Sf6#
- 2.Rd4#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rcc4#
- 2.Rb6#
- 2.Rd6#
- 2.Rc7#
- 2.Rc8#
- 1...Rxe4+!
- threat
- 1.Rf4+?
- 1...Ke5
- 2.Sd3#
- 2.Sd7#
- 2.Bb2#
- 2.Qe4#
- 1...Rg2!
- 1...Ke5
- 1.Rc7+?
- 1...Kd6
- 2.Sd3#
- 2.Sd7#
- 2.Rd7#
- 1...Rxa8!
- 1...Kd6
- 1.Qxh2?
- threat
- 2.Sc7#
- 2.Rd6#
- 2.Rc8#
- 2.Qe5#
- 2.Qd6#
- 2.Qxd2#
- 1...Rxh2
- 2.Sf4#
- 2.Sc7#
- 1...Rxa8
- 2.Rd6#
- 2.Qd6#
- 1...d1Q
- 2.Sc7#
- 2.Rd6#
- 2.Rc8#
- 2.Qe5#
- 2.Qd6#
- 1...d1S
- 2.Sc7#
- 2.Rd6#
- 2.Rc8#
- 2.Qe5#
- 2.Qd6#
- 2.Qd2#
- 1...d1B
- 2.Sc7#
- 2.Rd6#
- 2.Rc8#
- 2.Qe5#
- 2.Qd6#
- 2.Qd2#
- 1...d1R
- 2.Sc7#
- 2.Rd6#
- 2.Rc8#
- 2.Qe5#
- 2.Qd6#
- 1...Rh3
- 2.Sf4#
- 2.Sc7#
- 2.Rd4#
- 2.Re5#
- 2.Rd6#
- 2.Rc8#
- 2.Qe5#
- 2.Qd6#
- 1...Rf4
- 2.Sxf4#
- 2.Sc7#
- 2.Qxd2#
- 1...Rg2
- 2.Sc7#
- 2.Rb6#
- 2.Rd6#
- 2.Rc7#
- 2.Rc8#
- 2.Qe5#
- 2.Qd6#
- 1...Rg3
- 2.Sc7#
- 2.Rb6#
- 1...Rg5
- 2.Sc7#
- 2.Rb6#
- 2.Rd6#
- 2.Rc7#
- 2.Rc8#
- 2.Qd6#
- 2.Qxd2#
- 1...Rg7
- 2.Rd6#
- 2.Rc7#
- 2.Qe5#
- 2.Qd6#
- 2.Qxd2#
- 1...Rb8
- 2.Sc7#
- 2.Rd6#
- 2.Qe5#
- 2.Qd6#
- 2.Qxd2#
- 1...Rc8
- 2.Rd6#
- 2.Rxc8#
- 2.Qe5#
- 2.Qd6#
- 2.Qxd2#
- 1...Rd8
- 2.Sc7#
- 2.Rd6#
- 2.Rc8#
- 2.Qe5#
- 2.Qxd2#
- 1...Rxe4+!
- threat
- 1.Sd3?
- Keys
- 1.Bb2!
- threat
- 2.Rg4#
- 1...Rxe4+
- 2.Qxe4#
- 1...d1Q
- 2.Qxd1#
- 1...d1B
- 2.Qxd1#
- 1...d1R
- 2.Qxd1#
- 1...Rh3
- 2.Re5#
- 1...Rf4
- 2.Sc7#
- 1...Rhg4
- 2.Rxg4#
- 1...Rg1
- 2.Rb6#
- 1...Rg2
- 2.Rb6#
- 1...Rg3
- 2.Sc7#
- 2.Rb6#
- 1...Rgg4
- 2.Rxg4#
- 2.Rb6#
- 1...Rf8
- 2.Rf4#
- 1...Bg1
- 2.Sc7#
- 1...Bg3
- 2.Rxh4#
- 1...Bf4
- 2.Re5#
- 1...Be5
- 2.Rd4#
- 1...Bd6
- 2.Rc8#
- 1...Bc7
- 2.Sxc7#
- 1...Bb8
- 2.Rb6#
- threat
- 1.Bb2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 4
- Sets
- R(c);CHECK,OGATE,P_SPINR(c),XR(E)::QAB1(A),XR(c)
- R(c);S_CUTB(b)::S(I)
- R(f);N_GUARD::B(J)+R(H)
- B(b);N_GUARD::S(I)
- B(b);SBLOCK::QAB(A)+R(E),DCHECK
- B(b);SBLOCK::B(J)+R(H)
- B(b);N_GUARD::S(I),XB(b)
- B(b);S_CUTR(f)::B(J)+R(H)
- P(a);OGATEB,P_PINP(C)::QAR(A),XQ(a)
- P(a);OGATEB::QAR(A),XS(a)
- P(a);OGATEB,P_PINP(C)::QAR(A),XB(a)
- P(a);OGATEB::QAR(A),XR(a)
- Tries
- Try
- S(F);
- Threat
- DUALS(5)
- Refutation
- R(c);CHECK,P_SPINR(c),XR(E)
- Try
- S(F);
- Threat
- DUALS(6)
- Refutation
- R(c);CHECK,P_SPINR(c),XR(E)
- Try
- R(E);CHECK
- Refutation
- R(f);P_SPINR(f)
- Try
- R(H);CHECK
- Refutation
- R(f);P_PINP(G),XB(J)
- Try
- Q(A);XB(b)
- Threat
- DUALS(6)
- Refutation
- R(c);CHECK,XR(E)
- Try
- Actual
- B(B);
- Threat
- QAB(A)+R(E)
- Vars
- R(c);CHECK,OGATE,P_SPINR(c),XR(E)::QAB1(A),XR(c)
- P(a);OGATEB,P_PINP(C)::QAR(A),XQ(a)
- P(a);OGATEB,P_PINP(C)::QAR(A),XB(a)
- P(a);OGATEB::QAR(A),XR(a)
- R(c);N_PINR(E)::QAB(A)+R(E),DCHECK
- R(c);S_CUTB(b)::S(I)
- R(c);::QAB(A)+R(E),XR(c)
- R(f);N_GUARD::B(J)+R(H)
- R(f);N_GUARD::QAB(A)+R(E)
- B(b);N_GUARD::S(I)
- B(b);S_CUTR(f)::QAB(A)+R(E),XR(c)
- B(b);N_PINR(E)::QAB(A)+R(E),DCHECK
- B(b);SBLOCK::QAB(A)+R(E),DCHECK
- B(b);SBLOCK::B(J)+R(H)
- B(b);N_GUARD::S(I),XB(b)
- B(b);S_CUTR(f)::B(J)+R(H)
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).