MESON Chess Problem Database
Problem Display
PID: 52597 (5R2/3Npn2/4k3/3b1N2/7K/2n5/3R3B/5Q2 w - - 0 1)
Valladao Monteiro da Silveira, Joaquim
O Globo, 1969
#2
7 + 5
| 5309 | O Mosqueteiro do Rei | 1997 |
| 5454 | Near Snap | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Bh1
- 2.Sg7#
- 1...Ba2
- 2.Sg7#
- 1...Bg2
- 2.Sg7#
- 1...Bb3
- 2.Sg7#
- 1...Bf3
- 2.Sg7#
- 1...Bc4
- 2.Sg7#
- 1...Be4
- 2.Sg7#
- 1...Bc6
- 2.Sg7#
- 1...Bb7
- 2.Sg7#
- 1...Ba8
- 2.Sg7#
- 1...Se5
- 2.Sc5#
- 1...Sg5
- 2.Sc5#
- 1...Sd6
- 2.Sc5#
- 1...Sh6
- 2.Sc5#
- 1...Sd8
- 2.Sc5#
- 1...Sh8
- 2.Sc5#
- 1...Bh1
- Tries
- 1.Re8?
- threat
- 2.Rxe7#
- 1...Bf3
- 2.Sg7#
- 1...Kxd7!
- threat
- 1.Qd3?
- 1...Se4
- 2.Qxd5#
- 1...Sb1
- 2.Qxd5#
- 1...Bh1
- 2.Sg7#
- 1...Ba2
- 2.Sg7#
- 1...Bg2
- 2.Sg7#
- 1...Bb3
- 2.Sg7#
- 1...Bf3
- 2.Sg7#
- 1...Bc4
- 2.Sg7#
- 1...Be4
- 2.Sg7#
- 1...Bc6
- 2.Sg7#
- 1...Bb7
- 2.Sg7#
- 1...Ba8
- 2.Sg7#
- 1...Sd1
- 2.Qxd5#
- 1...Sa2
- 2.Qxd5#
- 1...Se2
- 2.Qxd5#
- 1...Sa4
- 2.Qxd5#
- 1...Sb5
- 2.Qxd5#
- 1...Se5
- 2.Sc5#
- 1...Sg5
- 2.Sc5#
- 1...Sd6
- 2.Sc5#
- 1...Sh6
- 2.Sc5#
- 1...Sd8
- 2.Sc5#
- 1...Sh8
- 2.Sc5#
- 1...Kxd7!
- 1...Se4
- 1.Qh3?
- threat
- 2.Se3#
- 2.Sd4#
- 2.Sd6#
- 2.Sh6#
- 2.Sg7#
- 1...Bh1
- 2.Se3#
- 2.Sg3#
- 2.Sd6#
- 2.Sh6#
- 2.Sg7#
- 1...Ba2
- 2.Se3#
- 2.Sg3#
- 2.Sd6#
- 2.Sh6#
- 2.Sg7#
- 1...Bg2
- 2.Sg7#
- 1...Bb3
- 2.Se3#
- 2.Sg3#
- 2.Sd6#
- 2.Sh6#
- 2.Sg7#
- 1...Bf3
- 2.Sg7#
- 1...Bc4
- 2.Se3#
- 2.Sg3#
- 2.Sd6#
- 2.Sh6#
- 2.Sg7#
- 1...Be4
- 2.Sg7#
- 1...Bc6
- 2.Se3#
- 2.Sg3#
- 2.Sd6#
- 2.Sh6#
- 2.Sg7#
- 1...Bb7
- 2.Se3#
- 2.Sg3#
- 2.Sd6#
- 2.Sh6#
- 2.Sg7#
- 1...Ba8
- 2.Se3#
- 2.Sg3#
- 2.Sd6#
- 2.Sh6#
- 2.Sg7#
- 1...Se5
- 2.Sc5#
- 1...Sg5
- 2.Sd4#
- 2.Sg7#
- 2.Sc5#
- 1...Sd6
- 2.Sd4#
- 2.Sxd6#
- 2.Sg7#
- 2.Sc5#
- 1...Sh6
- 2.Sd4#
- 2.Sxh6#
- 2.Sg7#
- 2.Sc5#
- 1...Kxd7!
- threat
- 1.Qa6+?
- 1...Kxd7
- 2.Qc8#
- 1...Bc6
- 2.Sg7#
- 1...Sd6
- 2.Sc5#
- 1...Kxf5!
- 1...Kxd7
- 1.Re8?
- Keys
- 1.Qc4!
- 1...Kxf5
- 2.Qg4#
- 1...Kxd7
- 2.Qc8#
- 1...Bxc4
- 2.Sg7#
- 1...Sb1
- 2.Qxd5#
- 1...Sd1
- 2.Qxd5#
- 1...Sa2
- 2.Qxd5#
- 1...Se2
- 2.Qxd5#
- 1...Sa4
- 2.Qxd5#
- 1...Se4
- 2.Qxd5#
- 1...Sb5
- 2.Qxd5#
- 1...Se5
- 2.Sc5#
- 1...Sg5
- 2.Sc5#
- 1...Sd6
- 2.Sc5#
- 1...Sh6
- 2.Sc5#
- 1...Sd8
- 2.Sc5#
- 1...Sh8
- 2.Sc5#
- 1...Kxf5
- 1.Qc4!
Anticipated by 4780(1891)
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 9
- Sets
- B(b);::S(E)
- S(e);::S(F)
- Tries
- Try
- R(G);P_PINP(d)
- Threat
- R1(G),XP(d)
- Vars
- B(b);::S(E)
- Refutation
- K(c);N_SPINP(d),P_SPINB(b),S_FLIGHT,XS(F)
- Try
- Q(A);
- Vars
- S(a);N_GUARD::QAB1(A),XB(b)
- B(b);::S(E)
- S(e);::S(F)
- Refutation
- K(c);P_SPINB(b),S_FLIGHT,XS(F)
- Try
- Q(A);
- Threat
- DUALS(5)
- Vars
- B(b);::QAB(A)+S(E),DCHECK
- S(e);::S(F)
- Refutation
- K(c);P_SPINB(b),S_FLIGHT,XS(F)
- Try
- Q(A);CHECK
- Vars
- K(c);OGATEB,P_SPINB(b),S_FLIGHT,XS(F)::QAB1(A)
- B(b);P_SPINB(b)::S(E)
- S(e);P_SPINS(e)::S(F)
- Refutation
- K(c);P_SPINS(e),S_FLIGHT,XS(E)
- Try
- Actual
- Q(A);P_PINB(b)
- Vars
- K(c);N_SPINB(b),OGATEB,P_SPINS(e),S_FLIGHT,XS(E)::QAB1(A)
- K(c);OGATEB,S_FLIGHT,XS(F)::QAB1(A)
- B(b);N_SPINB(b),XQ(A)::S(E)
- S(a);N_GUARD::QAB1(A),XB(b)
- S(e);::S(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).