MESON Chess Problem Database
Problem Display
PID: 3107 (3b4/4p3/1pQ1p3/1p2kNB1/bPP3Pp/7R/3Nrp2/4nK2 w - - 0 1)
Kemp, Charles Edward
Western Daily Mercury, 1918
(First published on Fri Oct 11 1918)
#2
9 + 11
| 2681 | All Change Here! | 1919 |
| 15239 | Valois Notebooks | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Rxd2
- 2.Re3#
- 1...Re3
- 2.Rxe3#
- 1...Re4
- 2.Qxe4#
- 1...Bd1
- 2.Qxb5#
- 1...Bc2
- 2.Qxb5#
- 1...Bb3
- 2.Qxb5#
- 1...Bc7
- 2.Qxc7#
- 1...Sc2
- 2.Sf3#
- 1...Sg2
- 2.Sf3#
- 1...Sd3
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...bxc4
- 2.Sxc4#
- 1...exf5
- 2.Qd5#
- 1...Rxd2
- Tries
- 1.Ra3?
- 1...Rxd2
- 2.Re3#
- 1...bxc4
- 2.Sxc4#
- 1...exf5
- 2.Qd5#
- 1...Re3
- 2.Rxe3#
- 1...Re4
- 2.Qxe4#
- 1...Bd1
- 2.Qxb5#
- 1...Bc2
- 2.Qxb5#
- 1...Bb3
- 2.Qxb5#
- 1...Bc7
- 2.Qxc7#
- 1...Sc2
- 2.Sf3#
- 1...Sg2
- 2.Sf3#
- 1...Sd3
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...h3!
- 1...Rxd2
- 1.Rb3?
- 1...Rxd2
- 2.Re3#
- 1...Bxb3
- 2.Qxb5#
- 1...bxc4
- 2.Sxc4#
- 1...exf5
- 2.Qd5#
- 1...Re3
- 2.Rxe3#
- 1...Re4
- 2.Qxe4#
- 1...Bc7
- 2.Qxc7#
- 1...Sc2
- 2.Sf3#
- 1...Sg2
- 2.Sf3#
- 1...Sd3
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...h3!
- 1...Rxd2
- 1.Rc3?
- 1...Rxd2
- 2.Re3#
- 1...bxc4
- 2.Sxc4#
- 1...exf5
- 2.Qd5#
- 1...Re3
- 2.Rxe3#
- 1...Re4
- 2.Qxe4#
- 1...Bd1
- 2.Qxb5#
- 1...Bc2
- 2.Qxb5#
- 1...Bb3
- 2.Qxb5#
- 1...Bc7
- 2.Qxc7#
- 1...Sc2
- 2.Sf3#
- 1...Sg2
- 2.Sf3#
- 1...Sd3
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...h3!
- 1...Rxd2
- 1.Rd3?
- 1...Rxd2
- 2.Re3#
- 1...Sxd3
- 2.Sf3#
- 1...bxc4
- 2.Sxc4#
- 1...exf5
- 2.Rd5#
- 2.Qd5#
- 1...Re3
- 2.Rxe3#
- 1...Re4
- 2.Qxe4#
- 1...Bd1
- 2.Qxb5#
- 1...Bc2
- 2.Qxb5#
- 1...Bb3
- 2.Qxb5#
- 1...Bc7
- 2.Qxc7#
- 1...Sc2
- 2.Sf3#
- 1...Sg2
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...h3!
- 1...Rxd2
- 1.Qf3?
- threat
- 2.Qxe2#
- 2.Qc3#
- 2.Qf4#
- 1...Rxd2
- 2.Qe3#
- 2.Qf4#
- 1...bxc4
- 2.Sxc4#
- 1...exf5
- 2.Qd5#
- 1...Re3
- 2.Qxe3#
- 2.Qf4#
- 1...Re4
- 2.Qxe4#
- 1...Bd1
- 2.Qc3#
- 2.Qf4#
- 1...Bc2
- 2.Qc3#
- 2.Qf4#
- 1...Sc2
- 2.Qf4#
- 1...Sg2
- 2.Qc3#
- 1...Sd3
- 2.Qxe2#
- 1...Sxf3!
- threat
- 1.Ra3?
- Keys
- 1.Qa8!
- 1...Rxd2
- 2.Re3#
- 1...bxc4
- 2.Sxc4#
- 1...exf5
- 2.Qd5#
- 1...Re3
- 2.Rxe3#
- 1...Re4
- 2.Qxe4#
- 1...Bd1
- 2.Qa1#
- 1...Bc2
- 2.Qa1#
- 1...Bb3
- 2.Qa1#
- 1...Bc7
- 2.Qh8#
- 1...Sc2
- 2.Sf3#
- 1...Sg2
- 2.Sf3#
- 1...Sd3
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Rxd2
- 1.Qa8!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 4
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(b);N_GUARD,XS(B)::R(C)
- R(b);N_GUARD::R(C),XR(b)
- R(b);N_GUARD::QAR1(I),XR(b)
- B(d);N_GUARD::QAR(I),XP(f)
- B(k);N_GUARD::QAB(I),XB(k)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- P(f);XP(E)::S(B),XP(f)
- P(i);N_GUARD,XS(G)::QAR1(I)
- Tries
- Try
- R(C);
- Vars
- R(b);N_GUARD,XS(B)::R(C)
- P(f);XP(E)::S(B),XP(f)
- P(i);N_GUARD,XS(G)::QAR1(I)
- R(b);N_GUARD::R(C),XR(b)
- R(b);N_GUARD::QAR1(I),XR(b)
- B(d);N_GUARD::QAR(I),XP(f)
- B(k);N_GUARD::QAB(I),XB(k)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- Refutation
- P(e);
- Try
- R(C);
- Vars
- R(b);N_GUARD,XS(B)::R(C)
- B(d);N_GUARD,XR(C)::QAR(I),XP(f)
- P(f);XP(E)::S(B),XP(f)
- P(i);N_GUARD,XS(G)::QAR1(I)
- R(b);N_GUARD::R(C),XR(b)
- R(b);N_GUARD::QAR1(I),XR(b)
- B(k);N_GUARD::QAB(I),XB(k)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- Refutation
- P(e);
- Try
- R(C);
- Vars
- R(b);N_GUARD,XS(B)::R(C)
- P(f);XP(E)::S(B),XP(f)
- P(i);N_GUARD,XS(G)::QAR1(I)
- R(b);N_GUARD::R(C),XR(b)
- R(b);N_GUARD::QAR1(I),XR(b)
- B(d);N_GUARD::QAR(I),XP(f)
- B(k);N_GUARD::QAB(I),XB(k)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- Refutation
- P(e);
- Try
- R(C);
- Vars
- R(b);N_GUARD,XS(B)::R(C)
- S(a);N_GUARD,XR(C)::S(B)
- P(f);XP(E)::S(B),XP(f)
- R(b);N_GUARD::R(C),XR(b)
- R(b);N_GUARD::QAR1(I),XR(b)
- B(d);N_GUARD::QAR(I),XP(f)
- B(k);N_GUARD::QAB(I),XB(k)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- Refutation
- P(e);
- Try
- Q(I);
- Threat
- DUALS(3)
- Vars
- P(f);XP(E)::S(B),XP(f)
- P(i);N_GUARD,XS(G)::QAR1(I)
- R(b);N_GUARD::QAR1(I),XR(b)
- S(a);::QAB1(I)
- S(a);::QAB(I)
- S(a);::QAR(I),XR(b)
- Refutation
- S(a);XQ(I)
- Try
- Actual
- Q(I);
- Vars
- R(b);N_GUARD,XS(B)::R(C)
- P(f);XP(E)::S(B),XP(f)
- P(i);N_GUARD,XS(G)::QAR1(I)
- R(b);N_GUARD::R(C),XR(b)
- R(b);N_GUARD::QAR1(I),XR(b)
- B(d);OGATE::QAB(I)
- B(k);OGATE::QAB(I)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
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).