MESON Chess Problem Database
Problem Display
PID: 142892 (KN2b2B/1Bp5/2PR1Rp1/2N1k3/1p3p2/6n1/4p3/4Q2r w - - 0 1)
Mackenzie, Arthur Ford
1st Prize, St. John Globe, 0000
#2
9 + 9
| 15 | British Chess Magazine | 1892 |
| 16 | Chess Amateur (The) | 1907 |
SOLUTION
- SOUND
- Sets
- 1...Rh2
- 2.Qa1#
- 1...Rh3
- 2.Qa1#
- 1...Rh4
- 2.Qa1#
- 1...Rh5
- 2.Qa1#
- 1...Rh6
- 2.Qa1#
- 1...Rh7
- 2.Qa1#
- 1...Rxh8
- 2.Qa1#
- 1...Bxc6
- 2.Sxc6#
- 1...Bd7
- 2.Sbxd7#
- 1...Bf7
- 2.Sbd7#
- 1...Sf1
- 2.Qa1#
- 1...Se4
- 2.Sd3#
- 1...Sf5
- 2.Rfe6#
- 1...Sh5
- 2.Qxe2#
- 1...b3
- 2.Qc3#
- 1...f3
- 2.Qxg3#
- 1...Rh2
- Tries
- 1.Qd2?
- threat
- 2.Rd5#
- 2.Rde6#
- 2.Qxf4#
- 2.Qb2#
- 2.Qd4#
- 2.Qd5#
- 1...Rxh8
- 2.Rde6#
- 2.Qxf4#
- 2.Qb2#
- 2.Qd4#
- 2.Qd5#
- 1...Bxc6
- 2.Sxc6#
- 2.Rde6#
- 2.Qxf4#
- 2.Qb2#
- 2.Qd4#
- 1...cxd6
- 2.Qxd6#
- 1...e1Q
- 2.Rd5#
- 2.Rde6#
- 2.Qxf4#
- 2.Qd4#
- 2.Qd5#
- 1...e1B
- 2.Rd5#
- 2.Rde6#
- 2.Qxf4#
- 2.Qd4#
- 2.Qd5#
- 1...Se4
- 2.Sd3#
- 2.Rd5#
- 2.Rde6#
- 2.Qxf4#
- 2.Qd4#
- 2.Qd5#
- 1...Rb1
- 2.Rd5#
- 2.Rde6#
- 2.Rxf4#
- 2.Rf7#
- 2.Rf8#
- 2.Qxf4#
- 2.Qd4#
- 2.Qd5#
- 1...Rc1
- 2.Rd5#
- 2.Rde6#
- 2.Rxf4#
- 2.Rf7#
- 2.Rf8#
- 2.Qxf4#
- 2.Qd4#
- 2.Qd5#
- 1...Rd1
- 2.Rd5#
- 2.Rde6#
- 2.Rxf4#
- 2.Rf7#
- 2.Rf8#
- 2.Qxf4#
- 1...Rf1
- 2.Rd5#
- 2.Rde6#
- 2.Rxf4#
- 2.Rf7#
- 2.Rf8#
- 2.Qb2#
- 2.Qd4#
- 2.Qd5#
- 1...Rh4
- 2.Rd5#
- 2.Rde6#
- 2.Qb2#
- 2.Qd4#
- 2.Qd5#
- 1...Bd7
- 2.Sbxd7#
- 2.Rd5#
- 2.Qxf4#
- 2.Qb2#
- 2.Qd4#
- 2.Qd5#
- 1...Bf7
- 2.Sbd7#
- 2.Qxf4#
- 2.Qb2#
- 2.Qd4#
- 1...Sf5
- 2.Rd5#
- 2.Rde6#
- 2.Rfe6#
- 2.Qd5#
- 1...Sh5
- 2.Rd5#
- 2.Rde6#
- 2.Qb2#
- 2.Qxe2#
- 2.Qd4#
- 2.Qd5#
- 1...f3
- 2.Rd5#
- 2.Rde6#
- 2.Qf4#
- 2.Qb2#
- 2.Qd4#
- 2.Qd5#
- 1...g5
- 2.Rd5#
- 2.Rde6#
- 2.Qb2#
- 2.Qd4#
- 2.Qd5#
- 1...Ra1+!
- threat
- 1.Qb1?
- threat
- 2.Rfe6#
- 2.Qb2#
- 1...cxd6
- 2.Rf5#
- 1...e1Q
- 2.Rfe6#
- 1...e1B
- 2.Rfe6#
- 1...Se4
- 2.Sd3#
- 2.Qxe4#
- 1...Rc1
- 2.Rfe6#
- 2.Rxg6#
- 1...Rd1
- 2.Rfe6#
- 2.Rxg6#
- 1...Sf5
- 2.Rfe6#
- 2.Qe4#
- 1...f3
- 2.Qb2#
- 1...Rxb1!
- threat
- 1.Qxh1?
- threat
- 2.Sd3#
- 2.Rd5#
- 2.Qd5#
- 2.Qa1#
- 1...Bxc6
- 2.Sd3#
- 2.Sxc6#
- 2.Qa1#
- 1...cxd6
- 2.Rf7#
- 2.Rf8#
- 1...e1Q
- 2.Sd3#
- 2.Rd5#
- 2.Qd5#
- 1...e1S
- 2.Rd5#
- 2.Qd5#
- 1...e1B
- 2.Sd3#
- 2.Rd5#
- 2.Qd5#
- 1...e1R
- 2.Sd3#
- 2.Rd5#
- 2.Qd5#
- 1...Se4
- 2.Sd3#
- 2.Qxe4#
- 1...Bf7
- 2.Sd3#
- 2.Scd7#
- 2.Sbd7#
- 2.Qa1#
- 1...Sf1
- 2.Sd3#
- 2.Rd5#
- 2.Qe4#
- 2.Qd5#
- 1...Sf5
- 2.Sd3#
- 2.Rd5#
- 2.Rfe6#
- 2.Qe4#
- 2.Qd5#
- 1...b3
- 2.Sd3#
- 2.Rd5#
- 2.Qd5#
- 1...f3
- 2.Qa1#
- 1...Sxh1!
- threat
- 1.Qxe2+?
- 1...Se4
- 2.Sd3#
- 2.Qxe4#
- 1...Sxe2!
- 1...Se4
- 1.Qd2?
- Keys
- 1.Bc8!
- 1...Bxc6+
- 2.Sxc6#
- 1...Rxe1
- 2.Rxg6#
- 1...Rxh8
- 2.Qa1#
- 1...cxd6
- 2.Rf5#
- 1...Rf1
- 2.Rxg6#
- 1...Rg1
- 2.Rxg6#
- 1...Rh2
- 2.Qa1#
- 1...Rh3
- 2.Qa1#
- 1...Rh4
- 2.Qa1#
- 1...Rh5
- 2.Qa1#
- 1...Rh6
- 2.Qa1#
- 1...Rh7
- 2.Qa1#
- 1...Bd7
- 2.Sbxd7#
- 1...Bf7
- 2.Sbd7#
- 1...Sf1
- 2.Qa1#
- 1...Se4
- 2.Sd3#
- 1...Sf5
- 2.Rfe6#
- 1...Sh5
- 2.Qxe2#
- 1...b3
- 2.Qc3#
- 1...f3
- 2.Qxg3#
- 1...g5
- 2.Rh6#
- 1...Bxc6+
- 1.Bc8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- R(a);N_GUARD::QAB(A)
- R(a);N_GUARD,XB(I)::QAB(A)
- B(i);P_PINB(F),XP(C)::S(H),XB(i)
- B(i);N_GUARD::S(H),XB(i)
- B(i);N_GUARD::S(H)
- S(c);S_CUTR(a)::QAB(A)
- S(c);N_SPINP(b),SBLOCK::S(B)
- S(c);SBLOCK::B(I)+R(E),DCHECK
- S(c);N_GUARD::QAR(A),XP(b)
- P(d);N_GUARD::QAB(A)
- P(e);OGATEB::QAB(A),XS(c)
- Tries
- Try
- Q(A);N_PINP(b)
- Threat
- DUALS(6)
- Vars
- P(h);OGATE,XR(D)::QAB1(A),XP(h)
- Refutation
- R(a);CHECK
- Try
- Q(A);N_PINP(b)
- Threat
- DUALS(2)
- Vars
- P(h);SBLOCK,XR(D)::B(I)+R(E),DCHECK
- P(b);::B(I)+R(E),DCHECK
- P(e);::QAB(A)
- Refutation
- R(a);XQ(A)
- Try
- Q(A);N_PINP(b),XR(a)
- Threat
- DUALS(4)
- Vars
- P(e);::QAB(A)
- Refutation
- S(c);XQ(A)
- Try
- Q(A);CHECK,XP(b)
- Refutation
- S(c);XQ(A)
- Try
- Actual
- B(F);
- Vars
- B(i);CHECK,XP(C)::S(H),XB(i)
- R(a);N_GUARD,N_SPINP(b),XQ(A)::B(I)+R(E),XP(g)
- R(a);N_GUARD,XB(I)::QAB(A)
- P(h);SBLOCK,XR(D)::B(I)+R(E),DCHECK
- R(a);N_GUARD::B(I)+R(E),XP(g)
- R(a);N_GUARD::QAB(A)
- B(i);N_GUARD::S(H),XB(i)
- B(i);N_GUARD::S(H)
- S(c);S_CUTR(a)::QAB(A)
- S(c);N_SPINP(b),SBLOCK::S(B)
- S(c);SBLOCK::B(I)+R(E),DCHECK
- S(c);N_GUARD::QAR(A),XP(b)
- P(d);N_GUARD::QAB(A)
- P(e);OGATEB::QAB(A),XS(c)
- P(g);OGATE::B(I)+R(E)
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).