MESON Chess Problem Database
Problem Display
PID: 5087 (8/3nN1pB/2p3Np/1p2p2R/2r1k2K/7R/Q1p5/6B1 w - - 0 1)
Blake, Percy Francis
2nd Prize, Brighton Society, 1898-1899
#2
8 + 9
| 15 | British Chess Magazine | 1899 |
| 56 | The Problemist | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ra4
- 2.Qxc2#
- 1...Rb4
- 2.Qxc2#
- 1...Rd4
- 2.Re3#
- 1...Sc5
- 2.Rxe5#
- 1...Sb6
- 2.Rxe5#
- 1...Sf6
- 2.Rxe5#
- 1...Sb8
- 2.Rxe5#
- 1...Sf8
- 2.Rxe5#
- 1...c1Q
- 2.Qg2#
- 1...c1S
- 2.Qg2#
- 1...c1B
- 2.Qg2#
- 1...c1R
- 2.Qe2#
- 2.Qg2#
- 1...b4
- 2.Qxc4#
- 1...c5
- 2.Qa8#
- 1...Ra4
- Tries
- 1.Sf4+?
- 1...Kxf4
- 2.Bh2#
- 2.Be3#
- 1...g6!
- 1...Kxf4
- 1.Sxe5+?
- 1...Kf4
- 2.Sd3#
- 2.Bh2#
- 2.Be3#
- 2.Rf3#
- 1...g6!
- 1...Kf4
- 1.Sf8+?
- 1...Kf4
- 2.Se6#
- 2.Bh2#
- 2.Be3#
- 1...g6!
- 1...Kf4
- 1.Sh8+?
- 1...Kf4
- 2.Bh2#
- 2.Be3#
- 1...g6!
- 1...Kf4
- 1.Rc3?
- threat
- 2.Qxc2#
- 1...c1Q
- 2.Qg2#
- 1...c1S
- 2.Qg2#
- 1...c1B
- 2.Qb1#
- 2.Qc2#
- 2.Qg2#
- 1...c1R
- 2.Qe2#
- 2.Qg2#
- 1...Rd4
- 2.Re3#
- 1...Sc5
- 2.Rxe5#
- 1...Rxc3!
- threat
- 1.Qb3?
- threat
- 2.Qd3#
- 2.Qe3#
- 2.Qf3#
- 1...c1Q
- 2.Qd3#
- 2.Qf3#
- 1...c1S
- 2.Qe3#
- 2.Qf3#
- 1...c1B
- 2.Qd3#
- 2.Qf3#
- 1...Rd4
- 2.Re3#
- 2.Qe3#
- 2.Qf3#
- 1...Sc5
- 2.Rxe5#
- 2.Qe3#
- 2.Qf3#
- 1...Rc3!
- threat
- 1.Qb2?
- threat
- 2.Re3#
- 1...c1Q
- 2.Qg2#
- 1...c1B
- 2.Qg2#
- 1...Rc3!
- threat
- 1.Qa3?
- threat
- 2.Qd3#
- 2.Qe3#
- 2.Qf3#
- 1...c1Q
- 2.Qd3#
- 2.Qf3#
- 1...c1S
- 2.Qe3#
- 2.Qf3#
- 1...c1B
- 2.Qd3#
- 2.Qf3#
- 1...Rd4
- 2.Re3#
- 2.Qe3#
- 2.Qf3#
- 1...Sc5
- 2.Rxe5#
- 2.Qe3#
- 2.Qf3#
- 1...Rc3!
- threat
- 1.Sf4+?
- Keys
- 1.Sc8!
- 1...Kd5+
- 2.Sf4#
- 1...c1Q
- 2.Qg2#
- 1...c1S
- 2.Qg2#
- 1...c1B
- 2.Qg2#
- 1...c1R
- 2.Qg2#
- 1...Rc3
- 2.Sd6#
- 1...Ra4
- 2.Sd6#
- 1...Rb4
- 2.Sd6#
- 1...Rd4
- 2.Re3#
- 1...Rc5
- 2.Sd6#
- 1...Sc5
- 2.Rxe5#
- 1...Sb6
- 2.Rxe5#
- 1...Sf6
- 2.Rxe5#
- 1...Sb8
- 2.Rxe5#
- 1...Sf8
- 2.Rxe5#
- 1...b4
- 2.Qxc4#
- 1...c5
- 2.Qa8#
- 1...Kd5+
- 1.Sc8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- R(b);N_GUARD::QAB(B),XP(a)
- R(b);SBLOCK::R1(C)
- S(h);N_GUARD::R1(E),XP(e)
- P(a);OGATE::QAB(B)
- P(d);N_GUARD::QAR2(B),XR(b)
- P(f);OGATEB::QAB(B)
- Tries
- Try
- S(F);CHECK
- Refutation
- P(i);P_SPINP(i)
- Try
- S(F);CHECK,XP(e)
- Refutation
- P(i);P_SPINP(i)
- Try
- S(F);CHECK
- Refutation
- P(i);P_SPINP(i)
- Try
- S(F);CHECK
- Refutation
- P(i);P_SPINP(i)
- Try
- R(C);
- Threat
- QAB(B),XP(a)
- Vars
- P(a);OGATE::QAB(B)
- R(b);SBLOCK::R1(C)
- S(h);N_GUARD::R1(E),XP(e)
- Refutation
- R(b);XR(C)
- Try
- Q(B);
- Threat
- DUALS(3)
- Refutation
- R(b);
- Try
- Q(B);
- Threat
- R1(C)
- Vars
- P(a);OGATE::QAB(B)
- Refutation
- R(b);
- Try
- Q(B);
- Threat
- DUALS(3)
- Refutation
- R(b);
- Try
- Actual
- S(G);
- Vars
- K(c);CHECK,P_SPINP(e),P_SPINR(b),S_FLIGHT::S(F)
- P(a);OGATE::QAB(B)
- R(b);::S(G)
- R(b);SBLOCK::R1(C)
- S(h);N_GUARD::R1(E),XP(e)
- P(d);N_GUARD::QAR2(B),XR(b)
- P(f);OGATEB::QAB(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).