MESON Chess Problem Database
Problem Display
PID: 19 (8/1p3Qp1/1Pp1ppK1/4R1RN/3B4/5k1r/4N3/1B3b1r w - - 0 1)
Mansfield, Comins
Brisbane Courier, 1930
#2
9 + 9
| 3202 | Complete Mansfield/I | 1996 |
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Sxg1#
- 1...R1h2
- 2.Sg1#
- 1...R3h2
- 2.Rg3#
- 1...Rg3
- 2.Rxg3#
- 1...Rh4
- 2.Rg3#
- 1...Rxh5
- 2.Rg3#
- 1...Bxe2
- 2.Be4#
- 1...c5
- 2.Qxb7#
- 1...Rg1
- Tries
- 1.Kxg7?
- threat
- 2.Qxf6#
- 1...Rg3
- 2.Rxg3#
- 1...Rh4
- 2.Rg3#
- 1...f5!
- threat
- 1.Sxf6?
- threat
- 2.Sd5#
- 2.Sh5#
- 2.Sd7#
- 2.Sh7#
- 2.Se8#
- 2.Sg8#
- 1...gxf6
- 2.Qxf6#
- 1...Rg3
- 2.Rxg3#
- 1...Rh4
- 2.Rg3#
- 1...Rh5
- 2.Sd5#
- 2.Sxh5#
- 2.Sd7#
- 2.Sh7#
- 2.Se8#
- 2.Sg8#
- 2.Rg3#
- 1...Rh7
- 2.Sd5#
- 2.Sh5#
- 2.Sd7#
- 2.Sxh7#
- 2.Se8#
- 2.Sg8#
- 2.Rg3#
- 1...Rh6+!
- threat
- 1.Bg1?
- threat
- 2.Sd4#
- 2.Re3#
- 1...Rxh5
- 2.Re3#
- 2.Rg3#
- 1...Bxe2
- 2.Be4#
- 2.Re3#
- 1...Rg3
- 2.Rxg3#
- 1...Rh4
- 2.Re3#
- 2.Rg3#
- 1...c5
- 2.Re3#
- 2.Qxb7#
- 1...Rxg1!
- threat
- 1.Rxe6?
- 1...Rxh5
- 2.Rg3#
- 1...Bxe2
- 2.Be4#
- 1...Rg3
- 2.Rxg3#
- 1...f5
- 2.Qxf5#
- 1...Rg1
- 2.Sxg1#
- 1...R1h2
- 2.Sg1#
- 1...R3h2
- 2.Rg3#
- 1...Rh4
- 2.Rg3#
- 1...c5
- 2.Qxb7#
- 1...Bg2!
- 1...Rxh5
- 1.Rgf5+?
- 1...Kg2
- 2.Rf2#
- 1...Kg4
- 2.Re4#
- 2.Rf4#
- 1...exf5!
- 1...Kg2
- 1.Qxe6?
- threat
- 2.Ref5#
- 2.Qb3#
- 2.Qg4#
- 2.Qf5#
- 1...Bxe2
- 2.Be4#
- 2.Ref5#
- 2.Qg4#
- 2.Qf5#
- 1...fxe5
- 2.Qg4#
- 1...Rg3
- 2.Rxg3#
- 1...f5
- 2.Rexf5#
- 2.Qb3#
- 2.Qxf5#
- 1...Rg1
- 2.Sxg1#
- 2.Rf5#
- 2.Qb3#
- 2.Qf5#
- 1...Rh4
- 2.Rg3#
- 2.Qb3#
- 1...fxg5!
- threat
- 1.Qf8?
- threat
- 2.Qa3#
- 1...Bxe2
- 2.Be4#
- 1...Rg3
- 2.Rxg3#
- 1...c5!
- threat
- 1.Kxg7?
- Keys
- 1.Bf5!
- 1...Rxh5
- 2.Rg3#
- 1...Bxe2
- 2.Be4#
- 1...exf5
- 2.Qb3#
- 1...fxe5
- 2.Bd3#
- 1...fxg5
- 2.Bxh3#
- 1...Rg3
- 2.Rxg3#
- 1...Rg1
- 2.Sxg1#
- 1...R1h2
- 2.Sg1#
- 1...R3h2
- 2.Rg3#
- 1...Rh4
- 2.Rg3#
- 1...Bg2
- 2.Bg4#
- 1...c5
- 2.Qxb7#
- 1...Rxh5
- 1.Bf5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- R(b);N_GUARD,P_PINR(E)::S(B),XR(b)
- R(b);N_GUARD::S(B)
- R(d);N_GUARD::R1(E)
- R(d);N_GUARD,P_PINR(E)::R1(E),XR(d)
- R(d);N_GUARD,XS(F)::R1(E)
- B(a);SBLOCK,XS(B)::B(A)
- P(e);OGATEB::QAB(I),XP(h)
- Tries
- Try
- K(H);P-FLIGHT,XP(i)
- Threat
- QAR(I),XP(g)
- Vars
- R(d);N_GUARD,P_PINR(E)::R1(E),XR(d)
- R(d);N_GUARD::R1(E)
- Refutation
- P(g);
- Try
- S(F);XP(g)
- Threat
- DUALS(6)
- Vars
- P(i);OGATE,P_SPINP(i),XS(F)::QAR(I),XP(i)
- R(d);N_GUARD,P_PINR(E)::R1(E),XR(d)
- R(d);N_GUARD::R1(E)
- Refutation
- R(d);CHECK
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- R(d);N_GUARD,P_PINR(E)::R1(E),XR(d)
- Refutation
- R(b);P_PINR(E),XB(C)
- Try
- R(D);XP(f)
- Vars
- R(d);N_GUARD,XS(F)::R1(E)
- B(a);SBLOCK,XS(B)::B(A)
- R(d);N_GUARD,P_PINR(E)::R1(E),XR(d)
- P(g);OGATE::QAR2(I),XP(g)
- R(b);N_GUARD,P_PINR(E)::S(B),XR(b)
- R(b);N_GUARD::S(B)
- R(d);N_GUARD::R1(E)
- P(e);OGATEB::QAB(I),XP(h)
- Refutation
- B(a);
- Try
- R(E);CHECK,N_PINP(g)
- Vars
- K(c);OGATE,S_FLIGHT::R1(E)
- Refutation
- P(f);XR(E)
- Try
- Q(I);N_PINP(g),XP(f)
- Threat
- DUALS(4)
- Vars
- P(g);XR(D)::QAB1(I)
- R(d);N_GUARD,P_PINR(E)::R1(E),XR(d)
- Refutation
- P(g);XR(E)
- Try
- Q(I);
- Threat
- QAR(I)
- Vars
- B(a);SBLOCK,XS(B)::B(A)
- R(d);N_GUARD,P_PINR(E)::R1(E),XR(d)
- Refutation
- P(e);
- Try
- Actual
- B(A);N_PINP(g)
- Vars
- R(d);N_GUARD,XS(F)::R1(E)
- B(a);SBLOCK,XS(B)::B(A)
- P(f);OGATE,XB(A)::QAR(I)
- P(g);OGATEB,XR(D)::QAR(I)+B(A)
- P(g);OGATEB,XR(E)::QAR(I)+B(A),XR(d)
- R(d);N_GUARD,P_PINR(E)::R1(E),XR(d)
- R(b);N_GUARD,P_PINR(E)::S(B),XR(b)
- R(b);N_GUARD::S(B)
- R(d);N_GUARD::R1(E)
- B(a);SBLOCK::B(A)
- P(e);OGATEB::QAB(I),XP(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).