MESON Chess Problem Database
Problem Display
PID: 103128 (8/3PK1p1/1prp2N1/1p1k2P1/1P2b1RR/1Pp5/8/B2B2Q1 w - - 0 1)
Maguire, Elihu S
Montreal Gazette, 1894
#2
11 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bb1
- 2.Rd4#
- 2.Qd4#
- 1...Bh1
- 2.Rd4#
- 2.Qd4#
- 2.Qxh1#
- 1...Bc2
- 2.Rd4#
- 2.Qd4#
- 1...Bg2
- 2.Rd4#
- 2.Qd4#
- 2.Qxg2#
- 1...Bd3
- 2.Rd4#
- 2.Qd4#
- 1...Bf3
- 2.Bxf3#
- 2.Rd4#
- 2.Qd4#
- 1...Bf5
- 2.Rd4#
- 2.Qd4#
- 1...Bxg6
- 2.Qd4#
- 1...c2
- 2.Sf4#
- 2.Qd4#
- 1...Bb1
- Tries
- 1.Bc2?
- threat
- 2.Bxe4#
- 1...Bxc2
- 2.Rd4#
- 2.Qd4#
- 1...Bxg6
- 2.Qd4#
- 1...Bh1
- 2.Rd4#
- 2.Qd4#
- 2.Qd1#
- 2.Qxh1#
- 1...Bg2
- 2.Rd4#
- 2.Qd4#
- 2.Qd1#
- 2.Qxg2#
- 1...Bd3
- 2.Rd4#
- 2.Qd4#
- 1...Bf3
- 2.Rd4#
- 2.Qd4#
- 1...Bf5
- 2.Rd4#
- 2.Qd4#
- 1...Rc4!
- threat
- 1.Bf3?
- threat
- 2.Bxe4#
- 2.Qd1#
- 1...Bxf3
- 2.Rd4#
- 2.Qd4#
- 1...Rc5
- 2.Bxe4#
- 1...Rc7
- 2.Bxe4#
- 1...Rc8
- 2.Bxe4#
- 1...c2
- 2.Sf4#
- 2.Bxe4#
- 2.Qd4#
- 1...Rc4!
- threat
- 1.Qe3?
- threat
- 2.Qxe4#
- 1...Bxg6
- 2.Rd4#
- 2.Qd4#
- 2.Qe6#
- 1...Bb1
- 2.Sf4#
- 2.Rd4#
- 2.Qd4#
- 2.Qe6#
- 1...Bh1
- 2.Sf4#
- 2.Rd4#
- 2.Qd4#
- 2.Qd3#
- 2.Qe6#
- 1...Bc2
- 2.Sf4#
- 2.Rd4#
- 2.Qd4#
- 2.Qe6#
- 1...Bg2
- 2.Sf4#
- 2.Rd4#
- 2.Qd4#
- 2.Qd3#
- 2.Qe6#
- 1...Bd3
- 2.Sf4#
- 2.Rd4#
- 2.Qd4#
- 2.Qxd3#
- 2.Qe6#
- 1...Bf3
- 2.Sf4#
- 2.Bxf3#
- 2.Rd4#
- 2.Qd4#
- 2.Qd3#
- 2.Qxf3#
- 2.Qe6#
- 1...Bf5
- 2.Sf4#
- 2.Rd4#
- 2.Qd4#
- 1...Rc4!
- threat
- 1.Qxb6?
- 1...Bxg6
- 2.Qd4#
- 1...Rc5
- 2.Qxd6#
- 1...Rc4
- 2.Qxd6#
- 1...Rc7
- 2.Qxd6#
- 1...Rc8
- 2.Qxd6#
- 1...Bb1
- 2.Rd4#
- 2.Qd4#
- 1...Bh1
- 2.Rd4#
- 2.Qd4#
- 1...Bc2
- 2.Rd4#
- 2.Qd4#
- 1...Bg2
- 2.Rd4#
- 2.Qd4#
- 1...Bd3
- 2.Rd4#
- 2.Qd4#
- 1...Bf3
- 2.Bxf3#
- 2.Rd4#
- 2.Qd4#
- 1...Bf5
- 2.Rd4#
- 2.Qd4#
- 1...c2
- 2.Sf4#
- 2.Qd4#
- 1...Rxb6!
- 1...Bxg6
- 1.Qe1?
- threat
- 2.Qxe4#
- 1...Kd4
- 2.Qd2#
- 2.Qxe4#
- 1...Bxg6
- 2.Rd4#
- 2.Qe6#
- 1...Bb1
- 2.Rd4#
- 2.Qe6#
- 1...Bh1
- 2.Rd4#
- 2.Qxh1#
- 2.Qe6#
- 1...Bc2
- 2.Rd4#
- 2.Qe6#
- 1...Bg2
- 2.Rd4#
- 2.Qe6#
- 1...Bd3
- 2.Rd4#
- 2.Qe6#
- 1...Bf3
- 2.Bxf3#
- 2.Rd4#
- 2.Qe6#
- 1...Bf5
- 2.Rd4#
- 1...Rc4!
- threat
- 1.Qh1?
- threat
- 2.Qxe4#
- 1...Kd4
- 2.Qxe4#
- 1...Bxh1
- 2.Rd4#
- 1...Bg2
- 2.Rd4#
- 2.Qxg2#
- 1...Bf3
- 2.Bxf3#
- 2.Rd4#
- 2.Qxf3#
- 1...Rc4!
- threat
- 1.Qg2?
- threat
- 2.Qxe4#
- 1...Kd4
- 2.Qxe4#
- 2.Qd2#
- 1...Bxg2
- 2.Rd4#
- 1...Bf3
- 2.Bxf3#
- 2.Rd4#
- 2.Qxf3#
- 1...Rc4!
- threat
- 1.Qg3?
- 1...Bxg6
- 2.Rd4#
- 1...Rc4
- 2.Qxd6#
- 1...Rc5
- 2.Qxd6#
- 1...Rc7
- 2.Qxd6#
- 1...Rc8
- 2.Qxd6#
- 1...Bb1
- 2.Rd4#
- 1...Bh1
- 2.Rd4#
- 2.Qd3#
- 1...Bc2
- 2.Rd4#
- 1...Bg2
- 2.Rd4#
- 2.Qxg2#
- 2.Qd3#
- 1...Bd3
- 2.Rd4#
- 2.Qxd3#
- 1...Bf3
- 2.Bxf3#
- 2.Rd4#
- 2.Qxf3#
- 1...Bf5
- 2.Rd4#
- 1...c2
- 2.Sf4#
- 1...Kd4!
- 1...Bxg6
- 1.d8Q?
- threat
- 2.Qg8#
- 1...Bxg6
- 2.Qd4#
- 1...Rc4
- 2.Qxd6#
- 1...Rc5
- 2.Qxd6#
- 1...Rc8
- 2.Qxd6#
- 1...Bf5
- 2.Rd4#
- 2.Qd4#
- 1...Rc7+!
- threat
- 1.d8R?
- 1...Bxg6
- 2.Qd4#
- 1...Rc4
- 2.Rxd6#
- 1...Rc5
- 2.Rxd6#
- 1...Rc8
- 2.Rxd6#
- 1...Bb1
- 2.Rd4#
- 2.Qd4#
- 1...Bh1
- 2.Rd4#
- 2.Qd4#
- 2.Qxh1#
- 1...Bc2
- 2.Rd4#
- 2.Qd4#
- 1...Bg2
- 2.Rd4#
- 2.Qd4#
- 2.Qxg2#
- 1...Bd3
- 2.Rd4#
- 2.Qd4#
- 1...Bf3
- 2.Bxf3#
- 2.Rd4#
- 2.Qd4#
- 1...Bf5
- 2.Rd4#
- 2.Qd4#
- 1...c2
- 2.Sf4#
- 2.Qd4#
- 1...Rc7+!
- 1...Bxg6
- 1.Bc2?
- Keys
- 1.Qh2!
- 1...Kd4
- 2.Qd2#
- 1...Bxg6
- 2.Rd4#
- 1...Rc4
- 2.Qxd6#
- 1...Rc5
- 2.Qxd6#
- 1...Rc7
- 2.Qxd6#
- 1...Rc8
- 2.Qxd6#
- 1...Bb1
- 2.Rd4#
- 1...Bh1
- 2.Rd4#
- 2.Qxh1#
- 1...Bc2
- 2.Rd4#
- 1...Bg2
- 2.Rd4#
- 2.Qxg2#
- 1...Bd3
- 2.Rd4#
- 1...Bf3
- 2.Bxf3#
- 2.Rd4#
- 1...Bf5
- 2.Rd4#
- 1...c2
- 2.Sf4#
- 1...Kd4
- 1.Qh2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 10
- REMOVED MATES = 0
- Sets
- B(b);XS(I)::QAR1(C)
- Tries
- Try
- B(B);
- Threat
- B(B),XB(b)
- Vars
- B(b);XS(I)::QAR1(C)
- Refutation
- R(f);
- Try
- B(B);P_PINB(b)
- Threat
- DUALS(2)
- Vars
- R(f);::B(B),XB(b)
- R(f);P_PINP(J)::B(B),XB(b)
- Refutation
- R(f);
- Try
- Q(C);
- Threat
- QAB1(C),XB(b)
- Refutation
- R(f);
- Try
- Q(C);XP(e)
- Vars
- B(b);XS(I)::QAR1(C)
- R(f);OGATE::QAR1(C),XP(g)
- R(f);OGATE,P_PINP(J)::QAR1(C),XP(g)
- Refutation
- R(f);XQ(C)
- Try
- Q(C);
- Threat
- QAB1(C),XB(b)
- Vars
- B(b);OGATE::R1(F)
- Refutation
- R(f);
- Try
- Q(C);P_PINB(b)
- Threat
- QAB1(C),XB(b)
- Vars
- K(d);P-FLIGHT,P_SPINP(a)::QAR1(C),XB(b)
- B(b);N_SPINB(b),OGATE,XQ(C)::R1(F)
- Refutation
- R(f);
- Try
- Q(C);P_PINB(b)
- Threat
- QAB1(C),XB(b)
- Vars
- B(b);N_SPINB(b),OGATE,XQ(C)::R1(F)
- Refutation
- R(f);
- Try
- Q(C);
- Vars
- B(b);OGATE,XS(I)::R1(F)
- R(f);N_GUARD::QAR1(C),XP(g)
- R(f);N_GUARD,P_PINP(J)::QAR1(C),XP(g)
- B(b);OGATE::R1(F)
- P(a);::S(I)
- Refutation
- K(d);P-FLIGHT,P_SPINB(b),P_SPINP(a)
- Try
- P(J);P_PINP(g)
- Threat
- QAB(J)
- Vars
- B(b);XS(I)::QAR1(C)
- R(f);N_GUARD::QAR1(J),XP(g)
- Refutation
- R(f);CHECK
- Try
- P(J);P_PINP(g)
- Vars
- B(b);XS(I)::QAR1(C)
- R(f);N_GUARD::R1(J),XP(g)
- Refutation
- R(f);CHECK
- Try
- Actual
- Q(C);
- Vars
- K(d);P-FLIGHT,P_SPINB(b),P_SPINP(a)::QAR2(C)
- B(b);OGATE,XS(I)::R1(F)
- R(f);N_GUARD::QAR1(C),XP(g)
- R(f);N_GUARD,P_PINP(J)::QAR1(C),XP(g)
- B(b);OGATE::R1(F)
- P(a);::S(I)
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).