MESON Chess Problem Database
Problem Display
PID: 144639 (4bb2/2pp4/1P1PP3/2k5/B4n1Q/2B1N2n/8/KR1R4 w - - 0 1)
Blikeng, Bjarne
Problemisten, 1946
#2
10 + 7
SOLUTION
- SOUND
- Sets
- 1...Bxd6
- 2.Bd4#
- 1...Se2
- 2.Rd5#
- 2.Qb4#
- 2.Qc4#
- 1...Sg2
- 2.Rd5#
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...Sd3
- 2.Qd4#
- 1...Sd5
- 2.Rxd5#
- 1...Sh5
- 2.Rd5#
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...Sxe6
- 2.Rd5#
- 2.Qb4#
- 2.Qc4#
- 1...Sg6
- 2.Rd5#
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...cxb6
- 2.Bb4#
- 1...cxd6
- 2.Bd4#
- 1...Bxd6
- Tries
- 1.Be5?
- threat
- 2.Rdc1#
- 1...Se2
- 2.Rd5#
- 2.Qb4#
- 2.Qc4#
- 1...Sd3
- 2.Qc4#
- 2.Qd4#
- 1...Sd5
- 2.Rxd5#
- 2.Qc4#
- 2.Qd4#
- 1...Bg6!
- threat
- 1.Qg5+?
- 1...Sd5
- 2.Rxd5#
- 2.Qxd5#
- 1...Sxg5!
- 1...Sd5
- 1.Qf6?
- threat
- 2.Qd4#
- 1...Sxe6
- 2.Rd5#
- 2.Qe5#
- 2.Qf5#
- 1...Sd5
- 2.Rxd5#
- 1...Se2
- 2.Rd5#
- 2.Qe5#
- 2.Qf5#
- 1...Bg7!
- threat
- 1.Qxf4?
- threat
- 2.Bd4#
- 2.Rd5#
- 2.Qe5#
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 2.Qf5#
- 1...Bxd6
- 2.Bd4#
- 2.Rd5#
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...cxd6
- 2.Bd4#
- 2.Rd5#
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...dxe6
- 2.Bd4#
- 2.Qe5#
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...Bg6
- 2.Bd4#
- 2.Rd5#
- 2.Qe5#
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...Bg7
- 2.Rd5#
- 2.Qb4#
- 2.Qc4#
- 1...c6
- 2.Bd4#
- 2.Qe5#
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 2.Qf5#
- 1...Sxf4!
- threat
- 1.Qh8?
- threat
- 2.Qd4#
- 1...Sxe6
- 2.Rd5#
- 2.Qe5#
- 1...Sd5
- 2.Rxd5#
- 1...Se2
- 2.Rd5#
- 2.Qe5#
- 1...Bg7!
- threat
- 1.bxc7?
- threat
- 2.c8Q#
- 2.c8R#
- 1...Bxd6
- 2.Bd4#
- 1...Sxe6
- 2.Rd5#
- 2.Qb4#
- 2.Qc4#
- 1...Sd3
- 2.Qd4#
- 1...Sd5
- 2.Rxd5#
- 1...Bh5
- 2.c8Q#
- 2.c8R#
- 1...Bg6
- 2.c8Q#
- 2.c8R#
- 1...Bf7
- 2.c8Q#
- 2.c8R#
- 1...Bh6
- 2.c8Q#
- 2.c8R#
- 1...Be7
- 2.c8Q#
- 2.c8R#
- 1...Bg7
- 2.c8Q#
- 2.c8R#
- 1...Sg1
- 2.c8Q#
- 2.c8R#
- 1...Sf2
- 2.c8Q#
- 2.c8R#
- 1...Sg5
- 2.c8Q#
- 2.c8R#
- 1...Se2
- 2.Rd5#
- 2.Qb4#
- 2.Qc4#
- 2.c8Q#
- 2.c8R#
- 1...Sg2
- 2.Rd5#
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 2.c8Q#
- 2.c8R#
- 1...Sh5
- 2.Rd5#
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 2.c8Q#
- 2.c8R#
- 1...Sg6
- 2.Rd5#
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 2.c8Q#
- 2.c8R#
- 1...dxe6!
- threat
- 1.Be5?
- Keys
- 1.Qd8!
- threat
- 2.Qxc7#
- 1...Bxd6
- 2.Bd4#
- 1...Sxe6
- 2.Rd5#
- 1...cxb6
- 2.Bb4#
- 2.Qxb6#
- 2.Qc7#
- 2.Qc8#
- 1...cxd6
- 2.Bb4#
- 2.Bd4#
- 2.Qc7#
- 2.Qc8#
- 1...dxe6
- 2.Bd4#
- 1...Sd5
- 2.Rxd5#
- 1...c6
- 2.Bb4#
- threat
- 1.Qd8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 3
- Sets
- B(g);SBLOCK,XP(I)::B(D)
- S(b);OGATE::QAB1(G)
- S(b);N_GUARD::R1(C),XS(b)
- P(d);SBLOCK,XP(H)::B(D)
- P(d);SBLOCK,XP(I)::B(D)
- Tries
- Try
- B(D);
- Threat
- R(C)
- Refutation
- B(f);
- Try
- Q(G);CHECK
- Refutation
- S(a);XQ(G)
- Try
- Q(G);
- Threat
- QAB1(G)
- Vars
- S(b);N_GUARD::R1(C),XS(b)
- Refutation
- B(g);
- Try
- Q(G);XS(b)
- Threat
- DUALS(7)
- Refutation
- S(a);XQ(G)
- Try
- Q(G);
- Threat
- QAB1(G)
- Vars
- S(b);N_GUARD::R1(C),XS(b)
- Refutation
- B(g);P_PINB(D)
- Try
- P(H);XP(d)
- Threat
- P=Q
- Vars
- B(g);SBLOCK,XP(I)::B(D)
- S(b);OGATE::QAB1(G)
- S(b);N_GUARD::R1(C),XS(b)
- B(f);::P=Q
- B(g);::P=Q
- B(g);P_PINB(D)::P=Q
- S(a);::P=Q
- Refutation
- P(e);XP(J)
- Try
- Actual
- Q(G);
- Threat
- QAR2(G),XP(d)
- Vars
- B(g);SBLOCK,XP(I)::B(D)
- S(b);N_GUARD,XP(J)::R1(C)
- P(e);XP(J)::B(D)
- S(b);N_GUARD::R1(C),XS(b)
- P(d);::B(D)
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).