MESON Chess Problem Database
Problem Display
PID: 9347 (8/5RP1/5BPb/6p1/1K1RBkp1/Q7/1P6/2N1rn1N w - - 0 1)
Mackenzie, Arthur Ford
1st Prize, Brighton Society, 1901
#2
11 + 6
| 15 | British Chess Magazine | 1902 |
| 16 | Chess Amateur (The) | 1906 |
| 2794 | Terms & Themes of Chess Problems | 1907 |
| 3360 | Simple Two-move Themes | 1924 |
| 3684 | Shakhmatna misl | 1983 |
| 721 | Variantim | 1988 |
| 785 | Het Belgisch Schaakbord (L'Echiquier Belge) | 2006 |
| 5503 | ISC | 2006 |
| 133 | The Problemist Supplement | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Rxc1
- 2.Bb1#
- 2.Bc2#
- 1...Rd1
- 2.Se2#
- 1...Re2
- 2.Sxe2#
- 1...Bxg7
- 2.Bxg7#
- 1...Sd2
- 2.Qg3#
- 1...Sh2
- 2.Qg3#
- 1...Se3
- 2.Sd3#
- 1...Sg3
- 2.Qxg3#
- 1...g3
- 2.Qf3#
- 1...Rxc1
- Tries
- 1.Ka4?
- 1...Rxc1
- 2.Bb1#
- 2.Bc2#
- 1...Bxg7
- 2.Bxg7#
- 1...g3
- 2.Qf3#
- 1...Rd1
- 2.Se2#
- 1...Re2
- 2.Sxe2#
- 1...Re3
- 2.Qd6#
- 1...Sd2
- 2.Qg3#
- 1...Sh2
- 2.Qg3#
- 1...Se3
- 2.Sd3#
- 2.Qd6#
- 1...Sg3
- 2.Qxg3#
- 1...Rxe4!
- 1...Rxc1
- 1.Ka5?
- 1...Rxc1
- 2.Bb1#
- 2.Bc2#
- 1...Bxg7
- 2.Bxg7#
- 1...g3
- 2.Qf3#
- 1...Rd1
- 2.Se2#
- 1...Re2
- 2.Sxe2#
- 1...Re3
- 2.Qd6#
- 1...Sd2
- 2.Qg3#
- 1...Sh2
- 2.Qg3#
- 1...Se3
- 2.Sd3#
- 2.Qd6#
- 1...Sg3
- 2.Qxg3#
- 1...Rxe4!
- 1...Rxc1
- 1.Kb5?
- 1...Rxc1
- 2.Bb1#
- 2.Bc2#
- 1...Bxg7
- 2.Bxg7#
- 1...g3
- 2.Qf3#
- 1...Rd1
- 2.Se2#
- 1...Re2
- 2.Sxe2#
- 1...Re3
- 2.Qd6#
- 1...Sd2
- 2.Qg3#
- 1...Sh2
- 2.Qg3#
- 1...Se3
- 2.Sd3#
- 2.Qd6#
- 1...Sg3
- 2.Qxg3#
- 1...Rxe4!
- 1...Rxc1
- 1.Sg3?
- threat
- 2.Sh5#
- 1...Rxe4
- 2.Sce2#
- 2.Rxe4#
- 1...Sxg3!
- threat
- 1.Qc3?
- 1...Rxc1
- 2.Bb1#
- 2.Bc2#
- 1...Bxg7
- 2.Bxg7#
- 1...g3
- 2.Qf3#
- 1...Rd1
- 2.Se2#
- 1...Re2
- 2.Sxe2#
- 1...Re3
- 2.Qc7#
- 1...Sd2
- 2.Qg3#
- 1...Sh2
- 2.Qg3#
- 1...Se3
- 2.Sd3#
- 2.Qc7#
- 1...Sg3
- 2.Qxg3#
- 1...Rxe4!
- 1...Rxc1
- 1.Qd3?
- 1...Rxc1
- 2.Bg2#
- 2.Bf3#
- 2.Bd5#
- 2.Bf5#
- 2.Bc6#
- 2.Bb7#
- 2.Ba8#
- 1...Rxe4
- 2.Qxe4#
- 1...Bxg7
- 2.Bxg7#
- 1...g3
- 2.Qf3#
- 1...Rd1
- 2.Se2#
- 2.Bg2#
- 2.Bf3#
- 2.Bd5#
- 2.Bf5#
- 2.Bc6#
- 2.Bb7#
- 2.Ba8#
- 1...Re2
- 2.Sxe2#
- 1...Sd2
- 2.Qg3#
- 1...Sh2
- 2.Qg3#
- 1...Se3
- 2.Bg2#
- 2.Bd5#
- 2.Bc6#
- 2.Bb7#
- 2.Ba8#
- 1...Sg3
- 2.Qxg3#
- 1...Re3!
- 1...Rxc1
- 1.g8Q?
- threat
- 2.Bg7#
- 2.Bh8#
- 2.Qb8#
- 1...Rxc1
- 2.Bb1#
- 2.Bc2#
- 2.Bg7#
- 2.Bh8#
- 1...Rxe4
- 2.Bg7#
- 2.Bh8#
- 1...g3
- 2.Qf3#
- 1...Bg7
- 2.Bxg7#
- 2.Qb8#
- 1...Se3
- 2.Sd3#
- 2.Qb8#
- 1...Sg3
- 2.Qxg3#
- 2.Qb8#
- 1...Bf8+!
- threat
- 1.g8S?
- threat
- 2.Bg7#
- 2.Bh8#
- 1...g3
- 2.Qf3#
- 1...Bg7
- 2.Bxg7#
- 1...Se3
- 2.Sd3#
- 1...Sg3
- 2.Qxg3#
- 1...Bf8+!
- threat
- 1.g8B?
- threat
- 2.Bg7#
- 2.Bh8#
- 1...g3
- 2.Qf3#
- 1...Bg7
- 2.Bxg7#
- 1...Se3
- 2.Sd3#
- 1...Sg3
- 2.Qxg3#
- 1...Bf8+!
- threat
- 1.g8R?
- threat
- 2.Bg7#
- 2.Bh8#
- 1...g3
- 2.Qf3#
- 1...Bg7
- 2.Bxg7#
- 1...Se3
- 2.Sd3#
- 1...Sg3
- 2.Qxg3#
- 1...Bf8+!
- threat
- 1.Ka4?
- Keys
- 1.Rc4!
- 1...Rxc1
- 2.Bc2#
- 1...Rxe4
- 2.Bd4#
- 1...Bxg7
- 2.Bxg7#
- 1...g3
- 2.Qf3#
- 1...Rd1
- 2.Se2#
- 1...Re2
- 2.Sxe2#
- 1...Re3
- 2.Bc3#
- 1...Sd2
- 2.Qg3#
- 1...Sh2
- 2.Qg3#
- 1...Se3
- 2.Sd3#
- 1...Sg3
- 2.Qxg3#
- 1...Rxc1
- 1.Rc4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- R(a);N_GUARD::S(A)
- R(a);N_GUARD::S(A),XR(a)
- B(f);OGATE,XP(K)::R(J)+B(H),XB(f)
- S(b);N_GUARD::QAB1(D)
- S(b);SBLOCK::S(A)
- S(b);N_GUARD::QAB1(D),XS(b)
- P(d);N_GUARD::QAR1(D)
- Tries
- Try
- K(E);P-FLIGHT
- Vars
- B(f);OGATE,XP(K)::R(J)+B(H),XB(f)
- P(d);N_GUARD::QAR1(D)
- R(a);N_GUARD::S(A)
- R(a);N_GUARD::S(A),XR(a)
- R(a);SBLOCK::QAB(D)
- S(b);N_GUARD::QAB1(D)
- S(b);N_GUARD::QAB1(D),XS(b)
- Refutation
- R(a);P_PINR(F),P_SPINR(a),XB(G)
- Try
- K(E);S_FLIGHT
- Vars
- B(f);OGATE,XP(K)::R(J)+B(H),XB(f)
- P(d);N_GUARD::QAR1(D)
- R(a);N_GUARD::S(A)
- R(a);N_GUARD::S(A),XR(a)
- R(a);SBLOCK::QAB(D)
- S(b);N_GUARD::QAB1(D)
- S(b);N_GUARD::QAB1(D),XS(b)
- Refutation
- R(a);P_SPINR(a),XB(G)
- Try
- K(E);P-FLIGHT
- Vars
- B(f);OGATE,XP(K)::R(J)+B(H),XB(f)
- P(d);N_GUARD::QAR1(D)
- R(a);N_GUARD::S(A)
- R(a);N_GUARD::S(A),XR(a)
- R(a);SBLOCK::QAB(D)
- S(b);N_GUARD::QAB1(D)
- S(b);N_GUARD::QAB1(D),XS(b)
- Refutation
- R(a);P_SPINR(a),XB(G)
- Try
- S(B);
- Threat
- S(B)
- Refutation
- S(b);XS(B)
- Try
- Q(D);
- Vars
- B(f);OGATE,XP(K)::R(J)+B(H),XB(f)
- P(d);N_GUARD::QAR1(D)
- R(a);N_GUARD::S(A)
- R(a);N_GUARD::S(A),XR(a)
- R(a);SBLOCK::QAB(D)
- S(b);N_GUARD::QAB1(D)
- S(b);N_GUARD::QAB1(D),XS(b)
- Refutation
- R(a);P_PINR(F),P_SPINR(a),XB(G)
- Try
- Q(D);
- Vars
- R(a);OGATE,P_PINR(F),P_SPINR(a),XB(G)::QAR1(D),XR(a)
- B(f);OGATE,XP(K)::R(J)+B(H),XB(f)
- P(d);N_GUARD::QAR1(D)
- R(a);N_GUARD::S(A),XR(a)
- S(b);N_GUARD::QAB1(D)
- S(b);N_GUARD::QAB1(D),XS(b)
- Refutation
- R(a);
- Try
- P(K);
- Threat
- DUALS(3)
- Vars
- P(d);N_GUARD::QAR1(D)
- Refutation
- B(f);CHECK
- Try
- P(K);
- Threat
- DUALS(2)
- Vars
- P(d);N_GUARD::QAR1(D)
- B(f);::R(J)+B(H),XB(f)
- S(b);SBLOCK::S(A)
- S(b);N_GUARD::QAB1(D),XS(b)
- Refutation
- B(f);CHECK
- Try
- P(K);
- Threat
- DUALS(2)
- Vars
- P(d);N_GUARD::QAR1(D)
- B(f);::R(J)+B(H),XB(f)
- S(b);SBLOCK::S(A)
- S(b);N_GUARD::QAB1(D),XS(b)
- Refutation
- B(f);CHECK
- Try
- P(K);
- Threat
- DUALS(2)
- Vars
- P(d);N_GUARD::QAR1(D)
- B(f);::R(J)+B(H),XB(f)
- S(b);SBLOCK::S(A)
- S(b);N_GUARD::QAB1(D),XS(b)
- Refutation
- B(f);CHECK
- Try
- Actual
- R(F);
- Vars
- R(a);N_GUARD,XS(A)::R(F)+B(G)
- R(a);P_PINR(F),P_SPINR(a),SBLOCK,XB(G)::R(J)+B(H)
- B(f);OGATE,XP(K)::R(J)+B(H),XB(f)
- P(d);N_GUARD::QAR1(D)
- R(a);N_GUARD::S(A)
- R(a);N_GUARD::S(A),XR(a)
- R(a);SBLOCK::R(J)+B(H)
- S(b);N_GUARD::QAB1(D)
- S(b);SBLOCK::S(A)
- S(b);N_GUARD::QAB1(D),XS(b)
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).