MESON Chess Problem Database
Problem Display
PID: 108394 (6B1/4p1p1/4pbK1/6n1/N1N2Q2/PpPk4/q3RP2/4R3 w - - 0 1)
Harrop, N
Montreal Gazette, 1898
#2
10 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qb1
- 2.Rd2#
- 1...Qa1
- 2.Rd2#
- 1...Qb2
- 2.Scxb2#
- 1...Qc2
- 2.Re3#
- 1...Qd2
- 2.Rxd2#
- 1...Qxa3
- 2.Rd2#
- 1...Bxc3
- 2.Sc5#
- 1...Bd4
- 2.Qxd4#
- 1...Be5
- 2.Sxe5#
- 1...Sf3
- 2.Qe4#
- 1...Sh3
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sf7
- 2.Qe4#
- 1...Sh7
- 2.Qe4#
- 1...b2
- 2.Rd2#
- 1...e5
- 2.Qe3#
- 1...Qb1
- Tries
- 1.Sab2+?
- 1...Kxc3
- 2.Rc1#
- 2.Qd2#
- 2.Qe3#
- 1...Qxb2!
- 1...Kxc3
- 1.Sab6?
- threat
- 2.Qe3#
- 1...Kxc3
- 2.Qe3#
- 1...Qd2
- 2.Qxd2#
- 1...Bd4
- 2.Qxd4#
- 1...Qxe2!
- threat
- 1.Sa5?
- threat
- 2.Qe3#
- 2.Qc4#
- 1...Qd2
- 2.Rxd2#
- 2.Qxd2#
- 1...Bd4
- 2.Qxd4#
- 1...Se4
- 2.Qe3#
- 2.Qf3#
- 2.Qxe4#
- 1...b2
- 2.Rd2#
- 2.Qd2#
- 2.Qe3#
- 1...Qxe2!
- threat
- 1.Scb6?
- threat
- 2.Qe3#
- 2.Qc4#
- 1...Qd2
- 2.Rxd2#
- 2.Qxd2#
- 1...Bd4
- 2.Qxd4#
- 1...Se4
- 2.Qe3#
- 2.Qf3#
- 2.Qxe4#
- 1...b2
- 2.Rd2#
- 2.Qd2#
- 2.Qe3#
- 1...Qxe2!
- threat
- 1.Bxe6?
- threat
- 2.Qe3#
- 1...Sxe6
- 2.Qe4#
- 1...Qd2
- 2.Rxd2#
- 2.Qxd2#
- 1...Bd4
- 2.Qxd4#
- 1...Qxe2!
- threat
- 1.Bf7?
- 1...Qxa3
- 2.Rd2#
- 1...Bxc3
- 2.Sc5#
- 1...Sxf7
- 2.Qe4#
- 1...Qd2
- 2.Rxd2#
- 1...Bd4
- 2.Qxd4#
- 1...Se4
- 2.Qxe4#
- 1...Qb1
- 2.Rd2#
- 1...Qa1
- 2.Rd2#
- 1...Qb2
- 2.Scxb2#
- 1...Qc2
- 2.Re3#
- 1...Be5
- 2.Sxe5#
- 1...Sf3
- 2.Qe4#
- 1...Sh3
- 2.Qe4#
- 1...Sh7
- 2.Qe4#
- 1...b2
- 2.Rd2#
- 1...e5
- 2.Qe3#
- 1...Qxe2!
- 1...Qxa3
- 1.Rc1?
- threat
- 2.Re3#
- 1...Kxe2
- 2.Qe3#
- 1...Qxe2
- 2.Sc5#
- 1...Se4
- 2.Qxe4#
- 1...Qd2
- 2.Rxd2#
- 1...Bd4!
- threat
- 1.Rd1+?
- 1...Qd2
- 2.Rdxd2#
- 2.Rexd2#
- 1...Kxe2!
- 1...Qd2
- 1.Rb2?
- threat
- 2.Rd1#
- 2.Re3#
- 1...Bxc3
- 2.Sc5#
- 2.Re3#
- 1...Bd4
- 2.Qxd4#
- 1...Se4
- 2.Qxe4#
- 1...Qb1
- 2.Re3#
- 2.Rd2#
- 1...Qa1
- 2.Re3#
- 2.Rd2#
- 1...Sf3
- 2.Re3#
- 2.Qe4#
- 1...Qxb2!
- threat
- 1.f3?
- 1...Qxa3
- 2.Rd2#
- 1...Bxc3
- 2.Sc5#
- 1...Sxf3
- 2.Qe4#
- 1...Qd2
- 2.Rxd2#
- 1...Bd4
- 2.Qxd4#
- 1...Se4
- 2.Qxe4#
- 1...e5
- 2.Qe3#
- 1...Qb1
- 2.Rd2#
- 1...Qa1
- 2.Rd2#
- 1...Qb2
- 2.Scxb2#
- 1...Qc2
- 2.Re3#
- 1...Be5
- 2.Sxe5#
- 1...Sh3
- 2.Qe4#
- 1...Sf7
- 2.Qe4#
- 1...Sh7
- 2.Qe4#
- 1...b2
- 2.Rd2#
- 1...Qxe2!
- 1...Qxa3
- 1.Sab2+?
- Keys
- 1.Qg4!
- 1...Qxe2
- 2.Qxe2#
- 1...Qxa3
- 2.Rd1#
- 2.Rd2#
- 1...Bxc3
- 2.Sc5#
- 1...Qd2
- 2.Rxd2#
- 1...Bd4
- 2.Qxd4#
- 1...Se4
- 2.Qxe4#
- 1...Qb1
- 2.Rd2#
- 1...Qa1
- 2.Rd2#
- 1...Qb2
- 2.Scxb2#
- 1...Qc2
- 2.Re3#
- 1...Be5
- 2.Sxe5#
- 1...Sf3
- 2.Qe4#
- 1...Sh3
- 2.Qe4#
- 1...Sf7
- 2.Qe4#
- 1...Sh7
- 2.Qe4#
- 1...b2
- 2.Rd1#
- 2.Rd2#
- 1...e5
- 2.Qd7#
- 1...Qxe2
- 1.Qg4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 2
- Sets
- Q(a);N_GUARD::R1(B)
- Q(a);N_GUARD::S(G),XQ(a)
- Q(a);SBLOCK::R1(B)
- Q(a);N_GUARD::R1(B),XQ(a)
- Q(a);N_GUARD,XP(D)::R1(B)
- B(f);SBLOCK,XP(E)::S(F)
- B(f);N_GUARD::QAR1(H),XB(f)
- B(f);N_GUARD::S(G),XB(f)
- S(d);N_GUARD::QAB1(H)
- S(d);N_GUARD::QAB1(H),XS(d)
- P(b);S_CUTQ(a)::R1(B)
- P(e);::QAR1(H)
- Tries
- Try
- S(F);CHECK
- Refutation
- Q(a);XS(F)
- Try
- S(F);
- Threat
- QAR1(H)
- Vars
- K(c);P-FLIGHT,XP(E)::QAR2(H)
- Q(a);N_GUARD::QAR1(H),XQ(a)
- B(f);N_GUARD::QAR1(H),XB(f)
- Refutation
- Q(a);XR(B)
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- B(f);N_GUARD::QAR1(H),XB(f)
- Refutation
- Q(a);XR(B)
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- B(f);N_GUARD::QAR1(H),XB(f)
- Refutation
- Q(a);XR(B)
- Try
- B(J);XP(e)
- Threat
- QAR1(H)
- Vars
- S(d);N_GUARD,XB(J)::QAB1(H)
- B(f);N_GUARD::QAR1(H),XB(f)
- Refutation
- Q(a);XR(B)
- Try
- B(J);
- Vars
- Q(a);N_GUARD,XP(D)::R1(B)
- B(f);SBLOCK,XP(E)::S(F)
- S(d);N_GUARD,XB(J)::QAB1(H)
- Q(a);N_GUARD::R1(B),XQ(a)
- B(f);N_GUARD::QAR1(H),XB(f)
- S(d);N_GUARD::QAB1(H),XS(d)
- Q(a);N_GUARD::R1(B)
- Q(a);N_GUARD::S(G),XQ(a)
- Q(a);SBLOCK::R1(B)
- B(f);N_GUARD::S(G),XB(f)
- S(d);N_GUARD::QAB1(H)
- P(b);S_CUTQ(a)::R1(B)
- P(e);::QAR1(H)
- Refutation
- Q(a);XR(B)
- Try
- R(A);
- Threat
- R1(B)
- Vars
- K(c);S_FLIGHT,XR(B)::QAR1(H)
- Q(a);SBLOCK,XR(B)::S(F)
- S(d);N_GUARD::QAB1(H),XS(d)
- Q(a);N_GUARD::R1(B),XQ(a)
- Refutation
- B(f);
- Try
- R(A);CHECK
- Refutation
- K(c);S_FLIGHT,XR(B)
- Try
- R(B);
- Threat
- DUALS(2)
- Vars
- B(f);N_GUARD::QAR1(H),XB(f)
- S(d);N_GUARD::QAB1(H),XS(d)
- Refutation
- Q(a);XR(B)
- Try
- P(C);
- Vars
- Q(a);N_GUARD,XP(D)::R1(B)
- B(f);SBLOCK,XP(E)::S(F)
- S(d);N_GUARD,XP(C)::QAB1(H)
- Q(a);N_GUARD::R1(B),XQ(a)
- B(f);N_GUARD::QAR1(H),XB(f)
- S(d);N_GUARD::QAB1(H),XS(d)
- P(e);::QAR1(H)
- Q(a);N_GUARD::R1(B)
- Q(a);N_GUARD::S(G),XQ(a)
- Q(a);SBLOCK::R1(B)
- B(f);N_GUARD::S(G),XB(f)
- S(d);N_GUARD::QAB1(H)
- P(b);S_CUTQ(a)::R1(B)
- Refutation
- Q(a);XR(B)
- Try
- Actual
- Q(H);
- Vars
- Q(a);OGATE,XR(B)::QAB1(H),XQ(a)
- B(f);SBLOCK,XP(E)::S(F)
- Q(a);N_GUARD::R1(B),XQ(a)
- B(f);N_GUARD::QAR1(H),XB(f)
- S(d);N_GUARD::QAB1(H),XS(d)
- Q(a);N_GUARD::R1(B)
- Q(a);N_GUARD::S(G),XQ(a)
- Q(a);SBLOCK::R1(B)
- B(f);N_GUARD::S(G),XB(f)
- S(d);N_GUARD::QAB1(H)
- P(e);OGATE::QAR(H)
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).