MESON Chess Problem Database
Problem Display
PID: 9539 (8/8/2R3p1/5p2/n1Bk2n1/1Q4N1/6p1/4RbK1 w - - 0 1)
Blake, Percy Francis
Hampstead and Highgate Express, 1905
#2
6 + 7
SOLUTION
- SOUND
- Sets
- 1...Bd3
- 2.Qxd3#
- 1...Bxc4
- 2.Qxc4#
- 1...Sb2
- 2.Qxb2#
- 1...Sc3
- 2.Qb6#
- 1...Sc5
- 2.Rd6#
- 1...Sb6
- 2.Qb2#
- 1...Sf2
- 2.Qe3#
- 1...Sh2
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Se5
- 2.Qe3#
- 1...Sf6
- 2.Qe3#
- 1...Sh6
- 2.Qe3#
- 1...f4
- 2.Re4#
- 1...g5
- 2.Sxf5#
- 1...Bd3
- Tries
- 1.Be6?
- threat
- 2.Qd5#
- 1...Sc3
- 2.Qxc3#
- 1...Se3
- 2.Qxe3#
- 1...Bc4
- 2.Rxc4#
- 2.Qxc4#
- 1...Sc5
- 2.Rd6#
- 1...Sb6
- 2.Qc3#
- 1...Sf6
- 2.Qe3#
- 1...Be2!
- threat
- 1.Bf7?
- threat
- 2.Qd5#
- 1...Sc3
- 2.Qxc3#
- 1...Se3
- 2.Qxe3#
- 1...Bc4
- 2.Rxc4#
- 2.Qxc4#
- 1...Sc5
- 2.Rd6#
- 1...Sb6
- 2.Qc3#
- 1...Sf6
- 2.Qe3#
- 1...Be2!
- threat
- 1.Bg8?
- threat
- 2.Qd5#
- 1...Sc3
- 2.Qxc3#
- 1...Se3
- 2.Qxe3#
- 1...Bc4
- 2.Rxc4#
- 2.Qxc4#
- 1...Sc5
- 2.Rd6#
- 1...Sb6
- 2.Qc3#
- 1...Sf6
- 2.Qe3#
- 1...Be2!
- threat
- 1.Rd1+?
- 1...Ke5
- 2.Qb8#
- 1...Bd3!
- 1...Ke5
- 1.Re2?
- threat
- 2.Qd3#
- 1...Se3
- 2.Qxe3#
- 1...Sb2
- 2.Qxb2#
- 1...Sc3
- 2.Qb6#
- 1...Sc5
- 2.Rd6#
- 1...Sf2
- 2.Qe3#
- 1...Se5
- 2.Qe3#
- 1...Bxe2!
- threat
- 1.Re7?
- 1...Bxc4
- 2.Qxc4#
- 1...Be2
- 2.Sxe2#
- 1...Bd3
- 2.Qxd3#
- 1...Sb2
- 2.Qxb2#
- 1...Sc3
- 2.Qb6#
- 1...Sc5
- 2.Rd6#
- 1...Sb6
- 2.Qb2#
- 1...Sf2
- 2.Qe3#
- 1...Sh2
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sf6
- 2.Qe3#
- 1...Sh6
- 2.Qe3#
- 1...f4
- 2.Re4#
- 1...g5
- 2.Sxf5#
- 1...Se5!
- 1...Bxc4
- 1.Re8?
- 1...Bxc4
- 2.Qxc4#
- 1...Be2
- 2.Sxe2#
- 1...Bd3
- 2.Qxd3#
- 1...Sb2
- 2.Qxb2#
- 1...Sc3
- 2.Qb6#
- 1...Sc5
- 2.Rd6#
- 1...Sb6
- 2.Qb2#
- 1...Sf2
- 2.Qe3#
- 1...Sh2
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sf6
- 2.Qe3#
- 1...Sh6
- 2.Qe3#
- 1...f4
- 2.Re4#
- 1...g5
- 2.Sxf5#
- 1...Se5!
- 1...Bxc4
- 1.Qd1+?
- 1...Bd3
- 2.Qxd3#
- 1...Kc3!
- 1...Bd3
- 1.Qb2+?
- 1...Sc3
- 2.Qb6#
- 1...Sxb2!
- 1...Sc3
- 1.Be6?
- Keys
- 1.Ree6!
- 1...Bxc4
- 2.Qxc4#
- 1...Be2
- 2.Sxe2#
- 1...Bd3
- 2.Qxd3#
- 1...Sb2
- 2.Qxb2#
- 1...Sc3
- 2.Qb6#
- 1...Sc5
- 2.Rcd6#
- 1...Sb6
- 2.Qb2#
- 1...Sf2
- 2.Qe3#
- 1...Sh2
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Se5
- 2.Red6#
- 1...Sf6
- 2.Qe3#
- 1...Sh6
- 2.Qe3#
- 1...f4
- 2.Re4#
- 1...g5
- 2.Sxf5#
- 1...Bxc4
- 1.Ree6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(a);N_GUARD::QAR1(C),XB(a)
- B(a);OGATE,XB(E)::QAR1(C),XB(a)
- S(c);N_GUARD::QAB(C),XS(c)
- S(c);N_GUARD,SBLOCK::QAB(C)
- S(c);SBLOCK::R(F)
- S(c);N_GUARD::QAB(C)
- S(e);N_GUARD::QAB1(C)
- S(e);N_GUARD::QAB1(C),XS(e)
- P(f);N_GUARD::R1(A)
- P(g);N_GUARD::S(D),XP(f)
- Tries
- Try
- B(E);
- Threat
- QAR1(C)
- Vars
- S(c);N_GUARD::QAB1(C),XS(c)
- S(e);N_GUARD::QAB1(C),XS(e)
- S(c);SBLOCK::R(F)
- S(c);N_GUARD::QAB1(C)
- S(e);N_GUARD::QAB1(C)
- Refutation
- B(a);
- Try
- B(E);
- Threat
- QAR1(C)
- Vars
- S(c);N_GUARD::QAB1(C),XS(c)
- S(e);N_GUARD::QAB1(C),XS(e)
- S(c);SBLOCK::R(F)
- S(c);N_GUARD::QAB1(C)
- S(e);N_GUARD::QAB1(C)
- Refutation
- B(a);
- Try
- B(E);
- Threat
- QAR1(C)
- Vars
- S(c);N_GUARD::QAB1(C),XS(c)
- S(e);N_GUARD::QAB1(C),XS(e)
- S(c);SBLOCK::R(F)
- S(c);N_GUARD::QAB1(C)
- S(e);N_GUARD::QAB1(C)
- Refutation
- B(a);
- Try
- R(A);CHECK
- Vars
- K(d);S_FLIGHT::QAB(C)
- Refutation
- B(a);P_SPINB(a)
- Try
- R(A);
- Threat
- QAR1(C)
- Vars
- S(e);N_GUARD::QAB1(C),XS(e)
- S(c);N_GUARD::QAB(C),XS(c)
- S(c);N_GUARD,SBLOCK::QAB(C)
- S(c);SBLOCK::R(F)
- S(e);N_GUARD::QAB1(C)
- Refutation
- B(a);XR(A)
- Try
- R(A);
- Vars
- B(a);OGATE,XB(E)::QAR1(C),XB(a)
- B(a);N_GUARD::S(D),XB(a)
- B(a);N_GUARD::QAR1(C),XB(a)
- S(c);N_GUARD::QAB(C),XS(c)
- S(c);N_GUARD,SBLOCK::QAB(C)
- S(c);SBLOCK::R(F)
- S(c);N_GUARD::QAB(C)
- S(e);N_GUARD::QAB1(C)
- S(e);N_GUARD::QAB1(C),XS(e)
- P(f);N_GUARD::R1(A)
- P(g);N_GUARD::S(D),XP(f)
- Refutation
- S(e);
- Try
- R(A);
- Vars
- B(a);OGATE,XB(E)::QAR1(C),XB(a)
- B(a);N_GUARD::S(D),XB(a)
- B(a);N_GUARD::QAR1(C),XB(a)
- S(c);N_GUARD::QAB(C),XS(c)
- S(c);N_GUARD,SBLOCK::QAB(C)
- S(c);SBLOCK::R(F)
- S(c);N_GUARD::QAB(C)
- S(e);N_GUARD::QAB1(C)
- S(e);N_GUARD::QAB1(C),XS(e)
- P(f);N_GUARD::R1(A)
- P(g);N_GUARD::S(D),XP(f)
- Refutation
- S(e);
- Try
- Q(C);CHECK
- Vars
- B(a);N_GUARD,P_SPINB(a)::QAR1(C),XB(a)
- Refutation
- K(d);S_FLIGHT
- Try
- Q(C);CHECK
- Vars
- S(c);N_GUARD,P_SPINS(c),SBLOCK::QAB(C)
- Refutation
- S(c);XQ(C)
- Try
- Actual
- R(A);
- Vars
- B(a);OGATE,XB(E)::QAR1(C),XB(a)
- B(a);N_GUARD::S(D),XB(a)
- B(a);N_GUARD::QAR1(C),XB(a)
- S(c);N_GUARD::QAB(C),XS(c)
- S(c);N_GUARD,SBLOCK::QAB(C)
- S(c);SBLOCK::R(F)
- S(c);N_GUARD::QAB(C)
- S(e);N_GUARD::QAB1(C)
- S(e);N_GUARD::QAB1(C),XS(e)
- S(e);SBLOCK::R(A)
- P(f);N_GUARD::R1(A)
- P(g);N_GUARD::S(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).