MESON Chess Problem Database
Problem Display
PID: 31756 (2Q3K1/2N5/1n6/8/3kP3/PPRn2B1/P3b3/1B2RN2 w - - 0 1)
Mackenzie, Arthur Ford
2nd Prize, Brighton Guardian, 1882
#2
12 + 4
| 3467 | Chess Blossoms | 1883 |
SOLUTION
- SOUND
- Sets
- 1...Kxe4
- 2.Qg4#
- 1...Bd1
- 2.Sb5#
- 2.Se6#
- 1...Bxf1
- 2.Sb5#
- 2.Se6#
- 1...Bf3
- 2.Sb5#
- 2.Se6#
- 1...Bg4
- 2.Sb5#
- 1...Bh5
- 2.Sb5#
- 2.Se6#
- 1...Sc1
- 2.Se6#
- 1...Sxe1
- 2.Se6#
- 1...Sb2
- 2.Se6#
- 1...Sf2
- 2.Se6#
- 1...Sb4
- 2.Se6#
- 1...Se5
- 2.Se6#
- 1...Sa4
- 2.Rc4#
- 1...Sc4
- 2.Rxc4#
- 1...Sd5
- 2.Rc4#
- 1...Sd7
- 2.Rc4#
- 1...Sa8
- 2.Rc4#
- 1...Sxc8
- 2.Rc4#
- 1...Kxe4
- Tries
- 1.Kh7?
- 1...Kxe4
- 2.Qg4#
- 1...Bxf1
- 2.Sb5#
- 2.Se6#
- 1...Sxe1
- 2.Se6#
- 2.Qh8#
- 1...Sxc8
- 2.Rc4#
- 1...Sc4
- 2.Rxc4#
- 1...Bd1
- 2.Sb5#
- 2.Se6#
- 1...Bf3
- 2.Sb5#
- 2.Se6#
- 1...Bg4
- 2.Sb5#
- 1...Bh5
- 2.Sb5#
- 2.Se6#
- 1...Sc1
- 2.Se6#
- 2.Qh8#
- 1...Sb2
- 2.Se6#
- 2.Qh8#
- 1...Sf2
- 2.Se6#
- 2.Qh8#
- 1...Sb4
- 2.Se6#
- 2.Qh8#
- 1...Sf4
- 2.Qh8#
- 1...Sc5
- 2.Qh8#
- 1...Se5
- 2.Se6#
- 1...Sa4
- 2.Rc4#
- 1...Sd5
- 2.Rc4#
- 1...Sd7
- 2.Rc4#
- 1...Sa8
- 2.Rc4#
- 1...Kxc3!
- 1...Kxe4
- 1.Bxd3?
- threat
- 2.Sb5#
- 2.Se6#
- 1...Bxd3
- 2.Se6#
- 1...Sxc8
- 2.Sb5#
- 1...Sc4
- 2.Sb5#
- 1...Bg4
- 2.Sb5#
- 1...Kxc3!
- threat
- 1.Rxe2?
- threat
- 2.Sb5#
- 2.Se6#
- 1...Kxc3
- 2.Sb5#
- 1...Sxc8
- 2.Sb5#
- 2.Rc4#
- 1...Sc4
- 2.Sb5#
- 2.Rxc4#
- 1...Sc5
- 2.Sb5#
- 1...Sf4!
- threat
- 1.Rxd3+?
- 1...Kxe4
- 2.Sd2#
- 2.Rxe2#
- 2.Qg4#
- 2.Qe6#
- 1...Bxd3
- 2.Se6#
- 1...Kc5!
- 1...Kxe4
- 1.Qf5?
- threat
- 2.Sb5#
- 1...Sxe1
- 2.Be5#
- 2.Qc5#
- 2.Qe5#
- 2.Qf6#
- 1...Sf4
- 2.Qc5#
- 2.Qf6#
- 1...Sc1
- 2.Be5#
- 2.Qc5#
- 2.Qe5#
- 2.Qf6#
- 1...Sb2
- 2.Be5#
- 2.Qc5#
- 2.Qe5#
- 2.Qf6#
- 1...Sf2
- 2.Be5#
- 2.Qc5#
- 2.Qe5#
- 2.Qf6#
- 1...Sb4
- 2.Be5#
- 2.Qc5#
- 2.Qe5#
- 2.Qf6#
- 1...Sc5
- 2.Be5#
- 2.Qxc5#
- 2.Qe5#
- 2.Qf6#
- 1...Se5
- 2.Bxe5#
- 2.Qxe5#
- 1...Kxc3!
- threat
- 1.Qe6?
- threat
- 2.Sb5#
- 1...Sxe1
- 2.Be5#
- 2.Qe5#
- 2.Qf6#
- 1...Sc4
- 2.Rxc4#
- 2.Qxc4#
- 1...Sf4
- 2.Qf6#
- 1...Sc1
- 2.Be5#
- 2.Qe5#
- 2.Qf6#
- 1...Sb2
- 2.Be5#
- 2.Qe5#
- 2.Qf6#
- 1...Sf2
- 2.Be5#
- 2.Qe5#
- 2.Qf6#
- 1...Sb4
- 2.Be5#
- 2.Qe5#
- 2.Qf6#
- 1...Sc5
- 2.Be5#
- 2.Qe5#
- 2.Qf6#
- 1...Se5
- 2.Bxe5#
- 2.Qxe5#
- 1...Kxc3!
- threat
- 1.Qd7+?
- 1...Kxe4
- 2.Qg4#
- 2.Qxd3#
- 1...Sd5
- 2.Rc4#
- 1...Sxd7
- 2.Rc4#
- 1...Kxc3!
- 1...Kxe4
- 1.Qd8+?
- 1...Kxe4
- 2.Qxd3#
- 1...Sd5
- 2.Rc4#
- 1...Sd7
- 2.Rc4#
- 1...Kxc3!
- 1...Kxe4
- 1.Qf8?
- 1...Kxe4
- 2.Qf4#
- 1...Bxf1
- 2.Sb5#
- 1...Sxe1
- 2.Qc5#
- 2.Qg7#
- 2.Qf6#
- 1...Sf4
- 2.Qc5#
- 2.Qg7#
- 2.Qf6#
- 1...Bd1
- 2.Sb5#
- 2.Rxd3#
- 1...Bf3
- 2.Sb5#
- 2.Rxd3#
- 1...Bg4
- 2.Sb5#
- 2.Rxd3#
- 1...Bh5
- 2.Sb5#
- 2.Rxd3#
- 1...Sc1
- 2.Qc5#
- 2.Qg7#
- 2.Qf6#
- 1...Sb2
- 2.Qc5#
- 2.Qg7#
- 2.Qf6#
- 1...Sf2
- 2.Qc5#
- 2.Qg7#
- 2.Qf6#
- 1...Sb4
- 2.Qc5#
- 2.Qg7#
- 2.Qf6#
- 1...Sc5
- 2.Qxc5#
- 2.Qg7#
- 2.Qf6#
- 1...Se5
- 2.Qc5#
- 1...Sa4
- 2.Rc4#
- 1...Sc4
- 2.Rxc4#
- 1...Sd5
- 2.Rc4#
- 1...Sd7
- 2.Rc4#
- 1...Sa8
- 2.Rc4#
- 1...Sc8
- 2.Rc4#
- 1...Kxc3!
- 1...Kxe4
- 1.Kh7?
- Keys
- 1.Qh3!
- 1...Kxc3
- 2.Be5#
- 1...Kxe4
- 2.Qg4#
- 1...Bxf1
- 2.Sb5#
- 1...Sxe1
- 2.Qh8#
- 1...Sc4
- 2.Rxc4#
- 1...Sf4
- 2.Qh8#
- 1...Bd1
- 2.Sb5#
- 1...Bf3
- 2.Sb5#
- 1...Bg4
- 2.Sb5#
- 1...Bh5
- 2.Sb5#
- 1...Sc1
- 2.Qh8#
- 1...Sb2
- 2.Qh8#
- 1...Sf2
- 2.Qh8#
- 1...Sb4
- 2.Qh8#
- 1...Sc5
- 2.Qh8#
- 1...Se5
- 2.Bf2#
- 1...Sa4
- 2.Rc4#
- 1...Sd5
- 2.Rc4#
- 1...Sd7
- 2.Rc4#
- 1...Sa8
- 2.Rc4#
- 1...Sc8
- 2.Rc4#
- 1...Kxc3
- 1.Qh3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 6
- ADDED MATES = 7
- REMOVED MATES = 0
- Sets
- K(c);OGATEB,P-FLIGHT,P_SPINB(a),P_SPINS(b),XP(I)::QAR2(K)
- B(a);::S(J)
- S(b);::S(J)
- S(b);XR(B)::S(J)
- S(d);N_GUARD::R1(G)
- S(d);N_GUARD::R1(G),XS(d)
- S(d);N_GUARD,XQ(K)::R1(G)
- Tries
- Try
- K(L);S_FLIGHT
- Vars
- K(c);OGATEB,P-FLIGHT,P_SPINB(a),P_SPINS(b),XP(I)::QAR2(K)
- S(d);N_GUARD,XQ(K)::R1(G)
- S(d);N_GUARD::R1(G),XS(d)
- B(a);::S(J)
- S(b);N_GUARD::QAB(K)
- S(b);::S(J)
- S(d);N_GUARD::R1(G)
- Refutation
- K(c);S_FLIGHT,XR(G)
- Try
- B(A);XS(b)
- Threat
- DUALS(2)
- Vars
- B(a);XB(A)::S(J)
- S(d);XQ(K)::S(J)
- S(d);::S(J)
- B(a);::S(J)
- Refutation
- K(c);S_FLIGHT,XR(G)
- Try
- R(B);XB(a)
- Threat
- DUALS(2)
- Vars
- K(c);S_FLIGHT,XR(G)::QAR(K)+S(J),DCHECK
- S(b);::S(J)
- Refutation
- S(b);
- Try
- R(G);CHECK,XS(b)
- Vars
- B(a);XR(G)::S(J)
- Refutation
- K(c);S_FLIGHT
- Try
- Q(K);
- Threat
- S(J)
- Refutation
- K(c);S_FLIGHT,XR(G)
- Try
- Q(K);
- Threat
- S(J)
- Vars
- S(b);N_GUARD::QAB(K)
- Refutation
- K(c);S_FLIGHT,XR(G)
- Try
- Q(K);CHECK
- Vars
- S(d);P_SPINS(d)::R1(G)
- S(d);XQ(K)::R1(G)
- Refutation
- K(c);S_FLIGHT,XR(G)
- Try
- Q(K);CHECK
- Vars
- K(c);OGATE,P-FLIGHT,P_SPINB(a),P_SPINS(b),XP(I)::QAB1(K),XS(b)
- S(d);P_SPINS(d)::R1(G)
- Refutation
- K(c);S_FLIGHT,XR(G)
- Try
- Q(K);
- Vars
- K(c);OGATEB,P-FLIGHT,P_SPINB(a),P_SPINS(b),XP(I)::QAR1(K)
- B(a);XS(C)::S(J)
- S(b);N_GUARD::QAB1(K)
- S(d);N_GUARD::R1(G)
- S(d);N_GUARD::R1(G),XS(d)
- Refutation
- K(c);S_FLIGHT,XR(G)
- Try
- Actual
- Q(K);
- Vars
- K(c);S_FLIGHT,XR(G)::B(H)
- K(c);OGATEB,P-FLIGHT,P_SPINB(a),P_SPINS(b),XP(I)::QAR2(K)
- B(a);XS(C)::S(J)
- S(b);N_GUARD,XR(B)::QAB(K)
- S(d);N_GUARD::R1(G),XS(d)
- S(b);N_GUARD::QAB(K)
- B(a);::S(J)
- S(b);N_GUARD,SBLOCK::B(H)
- S(d);N_GUARD::R1(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).