MESON Chess Problem Database
Problem Display
PID: 18290 (8/6p1/1n4K1/1N3R2/2p1kp2/3b2p1/Q5P1/1B1Nr3 w - - 0 1)
Harley, Brian
Time & Tide, 1954
(First published on Sat Mar 20 1954)
#2
7 + 8
| 15290 | Harley Scrapbook | 2015 |
SOLUTION
- SOUND
- Sets
- 1...Rxd1
- 2.Qe2#
- 1...Rf1
- 2.Qe2#
- 1...Rg1
- 2.Qe2#
- 1...Rh1
- 2.Qe2#
- 1...Re2
- 2.Qxe2#
- 1...Re3
- 2.Sdc3#
- 1...Bxb1
- 2.Qxb1#
- 1...Bc2
- 2.Bxc2#
- 2.Qxc2#
- 1...Sa4
- 2.Qxc4#
- 1...Sd5
- 2.Qxc4#
- 1...Sd7
- 2.Qxc4#
- 2.Qa8#
- 1...Sa8
- 2.Qxc4#
- 2.Qxa8#
- 1...Sc8
- 2.Qxc4#
- 2.Qa8#
- 1...c3
- 2.Qe6#
- 1...f3
- 2.gxf3#
- 1...Rxd1
- Tries
- 1.Kg5?
- 1...Rxd1
- 2.Qe2#
- 1...Bxb1
- 2.Qxb1#
- 1...Bc2
- 2.Bxc2#
- 2.Qxc2#
- 1...Rf1
- 2.Qe2#
- 1...Rg1
- 2.Qe2#
- 1...Rh1
- 2.Qe2#
- 1...Re2
- 2.Qxe2#
- 1...Re3
- 2.Sdc3#
- 1...Sa4
- 2.Qxc4#
- 1...Sd5
- 2.Qxc4#
- 1...Sd7
- 2.Qxc4#
- 2.Qa8#
- 1...Sa8
- 2.Qxc4#
- 2.Qxa8#
- 1...Sc8
- 2.Qxc4#
- 2.Qa8#
- 1...c3
- 2.Qe6#
- 1...f3
- 2.gxf3#
- 1...g6!
- 1...Rxd1
- 1.Bxd3+?
- 1...cxd3
- 2.Qe6#
- 1...Kxd3!
- 1...cxd3
- 1.Rg5?
- 1...Rxd1
- 2.Qe2#
- 1...Bxb1
- 2.Qxb1#
- 1...Bc2
- 2.Bxc2#
- 2.Qxc2#
- 1...Rf1
- 2.Qe2#
- 1...Rg1
- 2.Qe2#
- 1...Rh1
- 2.Qe2#
- 1...Re2
- 2.Qxe2#
- 1...Re3
- 2.Sdc3#
- 1...Sa4
- 2.Qxc4#
- 1...Sd5
- 2.Qxc4#
- 1...Sd7
- 2.Qxc4#
- 2.Qa8#
- 1...Sa8
- 2.Qxc4#
- 2.Qxa8#
- 1...Sc8
- 2.Qxc4#
- 2.Qa8#
- 1...c3
- 2.Qe6#
- 1...f3!
- 1...Rxd1
- 1.Rh5?
- 1...Rxd1
- 2.Qe2#
- 1...Bxb1
- 2.Qxb1#
- 1...Bc2
- 2.Bxc2#
- 2.Qxc2#
- 1...Rf1
- 2.Qe2#
- 1...Rg1
- 2.Qe2#
- 1...Rh1
- 2.Qe2#
- 1...Re2
- 2.Qxe2#
- 1...Re3
- 2.Sdc3#
- 1...Sa4
- 2.Qxc4#
- 1...Sd5
- 2.Qxc4#
- 1...Sd7
- 2.Qxc4#
- 2.Qa8#
- 1...Sa8
- 2.Qxc4#
- 2.Qxa8#
- 1...Sc8
- 2.Qxc4#
- 2.Qa8#
- 1...c3
- 2.Qe6#
- 1...f3!
- 1...Rxd1
- 1.Qa1?
- threat
- 2.Sd6#
- 2.Re5#
- 2.Qd4#
- 2.Qe5#
- 1...Rxd1
- 2.Re5#
- 2.Qd4#
- 2.Qe5#
- 1...Bxb1
- 2.Qd4#
- 2.Qxb1#
- 1...Bc2
- 2.Bxc2#
- 2.Qd4#
- 1...Sd7
- 2.Sd6#
- 2.Qd4#
- 2.Qa8#
- 1...Sc8
- 2.Re5#
- 2.Qd4#
- 2.Qe5#
- 2.Qa8#
- 1...f3
- 2.Sd6#
- 2.Qd4#
- 2.Qe5#
- 2.gxf3#
- 1...c3!
- threat
- 1.Qb2?
- threat
- 2.Sd6#
- 2.Re5#
- 2.Qd4#
- 2.Qe5#
- 1...Rxd1
- 2.Re5#
- 2.Qd4#
- 2.Qe5#
- 2.Qe2#
- 1...Bxb1
- 2.Qd4#
- 2.Qxb1#
- 1...Bc2
- 2.Bxc2#
- 2.Qd4#
- 2.Qxc2#
- 1...Sd7
- 2.Sd6#
- 2.Qd4#
- 1...Sc8
- 2.Re5#
- 2.Qd4#
- 2.Qe5#
- 1...f3
- 2.Sd6#
- 2.Qd4#
- 2.Qe5#
- 2.gxf3#
- 1...c3!
- threat
- 1.Qd2?
- threat
- 2.Sdc3#
- 2.Qxe1#
- 2.Qxf4#
- 1...Rxd1
- 2.Qxf4#
- 2.Qe2#
- 1...Bxb1
- 2.Sdc3#
- 2.Sbc3#
- 2.Sd6#
- 2.Qd4#
- 1...c3
- 2.Sdxc3#
- 2.Bxd3#
- 2.Qxe1#
- 2.Qxf4#
- 2.Qxd3#
- 1...Rf1
- 2.Sdc3#
- 2.Qe2#
- 1...Rg1
- 2.Sdc3#
- 2.Qxf4#
- 2.Qe2#
- 1...Rh1
- 2.Sdc3#
- 2.Qxf4#
- 2.Qe2#
- 1...Re2
- 2.Sdc3#
- 2.Qxf4#
- 2.Qxe2#
- 1...Re3
- 2.Sdc3#
- 1...Bc2
- 2.Sdc3#
- 2.Sbc3#
- 2.Sd6#
- 2.Bxc2#
- 2.Qxc2#
- 2.Qd4#
- 1...Sa4
- 2.Qxe1#
- 2.Qxf4#
- 1...f3
- 2.Sdc3#
- 2.Qxe1#
- 2.Qf4#
- 2.gxf3#
- 1...Sd5!
- threat
- 1.Qf2?
- threat
- 2.Sdc3#
- 2.Sbc3#
- 2.Sd6#
- 2.Qxe1#
- 2.Qd4#
- 2.Qf3#
- 2.Qxf4#
- 1...Rxd1
- 2.Sc3#
- 2.Sd6#
- 2.Qd4#
- 2.Qe2#
- 2.Qf3#
- 2.Qxf4#
- 1...Bxb1
- 2.Qd4#
- 2.Qf3#
- 1...Bc2
- 2.Bxc2#
- 2.Qd4#
- 2.Qxc2#
- 2.Qf3#
- 1...c3
- 2.Sdxc3#
- 2.Sbxc3#
- 2.Sd6#
- 2.Qxe1#
- 2.Qd4#
- 2.Qf3#
- 2.Qxf4#
- 1...Rf1
- 2.Sdc3#
- 2.Sbc3#
- 2.Sd6#
- 2.Qd4#
- 2.Qe2#
- 1...Rg1
- 2.Sdc3#
- 2.Sbc3#
- 2.Sd6#
- 2.Qd4#
- 2.Qe2#
- 2.Qf3#
- 2.Qxf4#
- 1...Rh1
- 2.Sdc3#
- 2.Sbc3#
- 2.Sd6#
- 2.Qd4#
- 2.Qe2#
- 2.Qf3#
- 2.Qxf4#
- 1...Re2
- 2.Sdc3#
- 2.Sbc3#
- 2.Sd6#
- 2.Qd4#
- 2.Qxe2#
- 2.Qf3#
- 2.Qxf4#
- 1...Re3
- 2.Sdc3#
- 2.Qxf4#
- 1...Sa4
- 2.Sd6#
- 2.Qxe1#
- 2.Qd4#
- 2.Qf3#
- 2.Qxf4#
- 1...Sd5
- 2.Sd6#
- 2.Qd4#
- 2.Qf3#
- 1...Sc8
- 2.Sdc3#
- 2.Sbc3#
- 2.Qxe1#
- 2.Qd4#
- 2.Qf3#
- 2.Qxf4#
- 1...f3
- 2.Sdc3#
- 2.Sbc3#
- 2.Sd6#
- 2.Qxe1#
- 2.Qd4#
- 2.Qxf3#
- 2.gxf3#
- 1...gxf2!
- threat
- 1.Qa3?
- threat
- 2.Qe7#
- 1...Bxb1
- 2.Qf3#
- 1...Bc2
- 2.Bxc2#
- 2.Qf3#
- 1...Sd7
- 2.Qa8#
- 1...Sc8
- 2.Qa8#
- 1...Sd5!
- threat
- 1.Qa7?
- threat
- 2.Qe7#
- 1...Bc2
- 2.Bxc2#
- 1...Sd5
- 2.Sd6#
- 2.Qd4#
- 1...Sd7
- 2.Sdc3#
- 2.Sbc3#
- 2.Sd6#
- 2.Qd4#
- 2.Qb7#
- 2.Qa8#
- 1...Sc8
- 2.Sdc3#
- 2.Sbc3#
- 2.Qd4#
- 2.Qb7#
- 2.Qa8#
- 1...Bxb1!
- threat
- 1.Qa8+?
- 1...Sd5
- 2.Qxd5#
- 1...Sxa8!
- 1...Sd5
- 1.Kg5?
- Keys
- 1.Qc2!
- 1...Rxd1
- 2.Qe2#
- 1...Bxc2
- 2.Bxc2#
- 1...c3
- 2.Qxd3#
- 1...Rf1
- 2.Qe2#
- 1...Rg1
- 2.Qe2#
- 1...Rh1
- 2.Qe2#
- 1...Re2
- 2.Qxe2#
- 1...Re3
- 2.Sdc3#
- 1...Sa4
- 2.Qxc4#
- 1...Sd5
- 2.Qxc4#
- 1...Sd7
- 2.Qxc4#
- 1...Sa8
- 2.Qxc4#
- 1...Sc8
- 2.Qxc4#
- 1...f3
- 2.gxf3#
- 1...Rxd1
- 1.Qc2!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- R(a);N_GUARD,XS(B)::QAR2(C)
- R(a);N_GUARD::QAR2(C)
- R(a);N_GUARD::QAR2(C),XR(a)
- R(a);SBLOCK::S(B)
- B(b);N_SPINB(b),OGATE,XB(A)::QAB(C),XB(b)
- S(g);N_GUARD::QAR2(C),XP(d)
- P(d);OGATE::QAR2(C)
- P(f);OGATE::P(D),XP(f)
- Tries
- Try
- K(G);P-FLIGHT
- Vars
- R(a);N_GUARD,XS(B)::QAR2(C)
- B(b);N_SPINB(b),OGATE,XB(A)::QAB(C),XB(b)
- R(a);N_GUARD::QAR2(C)
- R(a);N_GUARD::QAR2(C),XR(a)
- R(a);SBLOCK::S(B)
- S(g);N_GUARD::QAR2(C),XP(d)
- P(d);OGATE::QAR2(C)
- P(f);OGATE::P(D),XP(f)
- Refutation
- P(h);
- Try
- B(A);CHECK,XB(b)
- Vars
- P(d);OGATE,SBLOCK,XB(A)::QAR2(C)
- Refutation
- K(e);S_FLIGHT,XB(A)
- Try
- R(F);
- Vars
- R(a);N_GUARD,XS(B)::QAR2(C)
- B(b);N_SPINB(b),OGATE,XB(A)::QAB(C),XB(b)
- R(a);N_GUARD::QAR2(C)
- R(a);N_GUARD::QAR2(C),XR(a)
- R(a);SBLOCK::S(B)
- S(g);N_GUARD::QAR2(C),XP(d)
- P(d);OGATE::QAR2(C)
- Refutation
- P(f);
- Try
- R(F);
- Vars
- R(a);N_GUARD,XS(B)::QAR2(C)
- B(b);N_SPINB(b),OGATE,XB(A)::QAB(C),XB(b)
- R(a);N_GUARD::QAR2(C)
- R(a);N_GUARD::QAR2(C),XR(a)
- R(a);SBLOCK::S(B)
- S(g);N_GUARD::QAR2(C),XP(d)
- P(d);OGATE::QAR2(C)
- Refutation
- P(f);
- Try
- Q(C);
- Threat
- DUALS(4)
- Refutation
- P(d);
- Try
- Q(C);
- Threat
- DUALS(4)
- Refutation
- P(d);
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- R(a);::S(B)
- Refutation
- S(g);
- Try
- Q(C);
- Threat
- DUALS(7)
- Refutation
- P(c);XQ(C)
- Try
- Q(C);
- Threat
- QAR(C)
- Vars
- B(b);N_SPINB(b),OGATE,XB(A)::QAB1(C)
- S(g);N_GUARD::QAB(C)
- Refutation
- S(g);
- Try
- Q(C);
- Threat
- QAR(C)
- Vars
- B(b);OGATEB::B(A),XB(b)
- Refutation
- B(b);N_SPINB(b),XB(A)
- Try
- Q(C);CHECK
- Vars
- S(g);N_GUARD,P_SPINS(g)::QAB1(C),XS(g)
- Refutation
- S(g);XQ(C)
- Try
- Actual
- Q(C);
- Vars
- R(a);N_GUARD,XS(B)::QAR2(C)
- B(b);OGATE,XQ(C)::B(A),XB(b)
- P(d);N_GUARD::QAB1(C),XB(b)
- R(a);N_GUARD::QAR2(C)
- R(a);N_GUARD::QAR2(C),XR(a)
- R(a);SBLOCK::S(B)
- S(g);N_GUARD::QAR2(C),XP(d)
- P(f);OGATE::P(D),XP(f)
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).