MESON Chess Problem Database
Problem Display
PID: 107608 (3R2R1/1KN3br/1NP5/pBp2p2/P4B2/Pnk3qb/Q1p5/1r6 w - - 0 1)
Authier, Gabriel
BCF, 1951
#2
11 + 11
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qe1
- 2.Rd3#
- 1...Qf2
- 2.Rd3#
- 1...Qh2
- 2.Rd3#
- 1...Qxf4
- 2.Rd3#
- 1...Qh4
- 2.Rd3#
- 1...Qg1
- 2.Rd3#
- 1...Qg2
- 2.Rd3#
- 1...Qd3
- 2.Rxd3#
- 1...Qg4
- 2.Rd3#
- 1...Qg5
- 2.Rd3#
- 1...Qg6
- 2.Rd3#
- 1...Bd4
- 2.Sd5#
- 1...Be5
- 2.Rxg3#
- 1...Bf6
- 2.Rxg3#
- 1...Bh6
- 2.Rxg3#
- 1...Bf8
- 2.Rxg3#
- 1...Bh8
- 2.Rxg3#
- 1...Sa1
- 2.Bd2#
- 1...Sc1
- 2.Bd2#
- 1...Sd2
- 2.Bxd2#
- 1...Sd4
- 2.Sbd5#
- 2.Scd5#
- 1...Qe1
- Tries
- 1.Bf1?
- threat
- 2.Sb5#
- 1...Qd3
- 2.Rxd3#
- 1...Bd4
- 2.Sd5#
- 1...Be5
- 2.Rxg3#
- 1...Bf6
- 2.Rxg3#
- 1...Bh6
- 2.Rxg3#
- 1...Bf8
- 2.Rxg3#
- 1...Bh8
- 2.Rxg3#
- 1...Sa1
- 2.Bd2#
- 1...Sc1
- 2.Bd2#
- 1...Sd2
- 2.Bxd2#
- 1...Sd4
- 2.Sd5#
- 1...Bxf1!
- threat
- 1.Bc4?
- threat
- 2.Sb5#
- 1...Be5
- 2.Rxg3#
- 1...Bf6
- 2.Rxg3#
- 1...Bh6
- 2.Rxg3#
- 1...Bf8
- 2.Rxg3#
- 1...Bh8
- 2.Rxg3#
- 1...Sa1
- 2.Bd2#
- 1...Sc1
- 2.Bd2#
- 1...Sd2
- 2.Bxd2#
- 1...Sd4
- 2.Sd5#
- 1...Bd4!
- threat
- 1.Ba6?
- threat
- 2.Sb5#
- 1...Qd3
- 2.Rxd3#
- 1...Bd4
- 2.Sd5#
- 1...Be5
- 2.Rxg3#
- 1...Bf6
- 2.Rxg3#
- 1...Bh6
- 2.Rxg3#
- 1...Bf8
- 2.Rxg3#
- 1...Bh8
- 2.Rxg3#
- 1...Sa1
- 2.Bd2#
- 1...Sc1
- 2.Bd2#
- 1...Sd2
- 2.Bxd2#
- 1...Sd4
- 2.Sd5#
- 1...Bf1!
- threat
- 1.Rd2?
- threat
- 2.Sbd5#
- 2.Scd5#
- 2.Qxc2#
- 1...Qxf4
- 2.Rd3#
- 2.Qxc2#
- 1...Qd3
- 2.Rxd3#
- 1...Qe3
- 2.Qxc2#
- 1...c1Q
- 2.Sbd5#
- 2.Scd5#
- 1...c1S
- 2.Sbd5#
- 2.Scd5#
- 2.Qc2#
- 1...c1B
- 2.Sbd5#
- 2.Scd5#
- 2.Qc2#
- 1...c1R
- 2.Sbd5#
- 2.Scd5#
- 1...Qg2
- 2.Rd3#
- 2.Qxc2#
- 1...Qf3
- 2.Qxc2#
- 1...Rc1
- 2.Sbd5#
- 2.Scd5#
- 1...Rb2
- 2.Sbd5#
- 2.Scd5#
- 1...Bg2
- 2.Qxc2#
- 1...Bd4
- 2.Sd5#
- 2.Rxc2#
- 2.Qxc2#
- 1...Be5
- 2.Sd5#
- 2.Rxg3#
- 2.Qxc2#
- 1...Bf6
- 2.Sd5#
- 2.Rxg3#
- 2.Qxc2#
- 1...Bh6
- 2.Sd5#
- 2.Rxg3#
- 2.Qxc2#
- 1...Bf8
- 2.Sd5#
- 2.Rxg3#
- 2.Qxc2#
- 1...Bh8
- 2.Sd5#
- 2.Rxg3#
- 2.Qxc2#
- 1...Sa1
- 2.Sbd5#
- 2.Scd5#
- 1...Sd4
- 2.Sbd5#
- 2.Scd5#
- 1...Sxd2!
- threat
- 1.Bf1?
- Keys
- 1.Be2!
- threat
- 2.Sb5#
- 1...Qd3
- 2.Rxd3#
- 1...Bd4
- 2.Sd5#
- 1...Be5
- 2.Rxg3#
- 1...Bf6
- 2.Rxg3#
- 1...Bh6
- 2.Rxg3#
- 1...Bf8
- 2.Rxg3#
- 1...Bh8
- 2.Rxg3#
- 1...Sa1
- 2.Bd2#
- 1...Sc1
- 2.Bd2#
- 1...Sd2
- 2.Bxd2#
- 1...Sd4
- 2.Sd5#
- threat
- 1.Be2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 10
- Sets
- Q(e);N_GUARD::R1(J)
- Q(e);N_GUARD,XB(D)::R1(J)
- Q(e);N_GUARD,P_PINP(G)::R1(J)
- Q(e);N_GUARD::R1(J),XQ(e)
- B(j);P_PINS(I),SBLOCK::S(F)
- B(j);OGATE,P_PINS(I)::R(K),XQ(e)
- S(c);N_GUARD::B(D)
- S(c);N_GUARD::B(D),XS(c)
- Tries
- Try
- B(E);
- Threat
- S(I)
- Vars
- Q(e);N_GUARD::R1(J),XQ(e)
- B(j);P_PINS(I),SBLOCK::S(F)
- B(j);OGATE,P_PINS(I)::R(K),XQ(e)
- S(c);N_GUARD,P_PINS(F)::B(D)
- S(c);N_GUARD,P_PINS(F)::B(D),XS(c)
- S(c);P_PINS(F),SBLOCK::S(I)
- Refutation
- B(f);XB(E)
- Try
- B(E);
- Threat
- S(I)
- Vars
- B(j);OGATE,P_PINS(I)::R(K),XQ(e)
- S(c);N_GUARD,P_PINS(F)::B(D)
- S(c);N_GUARD,P_PINS(F)::B(D),XS(c)
- S(c);P_PINS(F),SBLOCK::S(I)
- Refutation
- B(j);P_PINS(I)
- Try
- B(E);
- Threat
- S(I)
- Vars
- Q(e);N_GUARD::R1(J),XQ(e)
- B(j);P_PINS(I),SBLOCK::S(F)
- B(j);OGATE,P_PINS(I)::R(K),XQ(e)
- S(c);N_GUARD,P_PINS(F)::B(D)
- S(c);N_GUARD,P_PINS(F)::B(D),XS(c)
- S(c);P_PINS(F),SBLOCK::S(I)
- Refutation
- B(f);
- Try
- R(J);
- Threat
- DUALS(3)
- Vars
- Q(e);N_GUARD::R1(J),XQ(e)
- Q(e);::QAR1(A),XP(b)
- Q(e);P_PINP(G)::QAR1(A),XP(b)
- B(f);P_PINP(G)::QAR1(A),XP(b)
- Refutation
- S(c);XR(J)
- Try
- Actual
- B(E);
- Threat
- S(I)
- Vars
- Q(e);N_GUARD::R1(J),XQ(e)
- B(j);P_PINS(I),SBLOCK::S(F)
- B(j);OGATE,P_PINS(I)::R(K),XQ(e)
- S(c);N_GUARD,P_PINS(F)::B(D)
- S(c);N_GUARD,P_PINS(F)::B(D),XS(c)
- S(c);P_PINS(F),SBLOCK::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).