MESON Chess Problem Database
Problem Display
PID: 15507 (7B/1KQ4B/2pr2R1/1p3kNN/1qb2br1/2n2P2/8/8 w - - 0 1)
Burger, Robert Eugene
1st Prize, US Problem Bulletin, 1984
#2
8 + 9
| 3748 | FIDE Album (1983-1985) | 1992 |
| 273 | Mat Plus | 1994 |
| 4640 | Chess Wizardry: The New ABC of Chess Problems | 1996 |
SOLUTION
- SOUND
- Sets
- 1...Rd1
- 2.Sg7#
- 2.Rg7#
- 2.Rg8#
- 1...Rd2
- 2.Sg7#
- 2.Rg7#
- 2.Rg8#
- 1...Rd3
- 2.Sg7#
- 2.Rg7#
- 2.Rg8#
- 1...Rd4
- 2.Sg7#
- 2.Rg7#
- 2.Rg8#
- 1...Rd5
- 2.Sg7#
- 2.Rg7#
- 2.Rg8#
- 2.Qf7#
- 1...Re6
- 2.Sg7#
- 1...Rf6
- 2.Sg7#
- 1...Rd7
- 2.Rg7#
- 1...Rd8
- 2.Sg7#
- 2.Rg7#
- 2.Rg8#
- 1...Be6
- 2.Rg8#
- 1...Bxg5
- 2.Rxd6#
- 1...Se4
- 2.fxe4#
- 1...Rd1
- Tries
- 1.Bf6?
- threat
- 2.Sg7#
- 2.Rh6#
- 2.Rg7#
- 2.Rg8#
- 1...Rxg5
- 2.Sg7#
- 1...Rxf6
- 2.Sg7#
- 1...Rd7
- 2.Rg7#
- 1...Bf7
- 2.Sg7#
- 1...Bg8
- 2.Sg7#
- 2.Rxg8#
- 1...Bc1
- 2.Rh6#
- 2.Rg7#
- 2.Rg8#
- 1...Bd2
- 2.Rh6#
- 2.Rg7#
- 2.Rg8#
- 1...Bh2
- 2.Rh6#
- 2.Rg7#
- 2.Rg8#
- 1...Be3
- 2.Rh6#
- 2.Rg7#
- 2.Rg8#
- 1...Bg3
- 2.Rh6#
- 2.Rg7#
- 2.Rg8#
- 1...Be5
- 2.Rh6#
- 2.Rg7#
- 2.Rg8#
- 1...Bxg5!
- threat
- 1.Rf6+?
- 1...Ke5
- 2.Rf5#
- 2.Rxd6#
- 1...Kxg5!
- 1...Ke5
- 1.Qxd6?
- threat
- 2.Sg7#
- 2.Rg7#
- 2.Rg8#
- 2.Qf6#
- 1...Rxg5
- 2.Sg7#
- 2.Rf6#
- 2.Qxf4#
- 2.Qf6#
- 1...Bxg5
- 2.Sg7#
- 2.Re6#
- 2.Rf6#
- 2.Rh6#
- 2.Rg7#
- 2.Rg8#
- 2.Qe5#
- 1...Bxd6
- 2.Rg8#
- 1...Be6
- 2.Sg7#
- 2.Rg7#
- 2.Rg8#
- 2.Qxe6#
- 1...Bf7
- 2.Sg7#
- 2.Qf6#
- 1...Bg8
- 2.Sg7#
- 2.Rxg8#
- 2.Qf6#
- 1...Be5
- 2.Rg7#
- 2.Rg8#
- 2.Qxe5#
- 1...Se4
- 2.Sg7#
- 2.Rg7#
- 2.Rg8#
- 2.fxe4#
- 1...Sd5
- 2.Sg7#
- 2.Rg7#
- 2.Rg8#
- 2.Qe6#
- 2.Qd7#
- 1...Qxd6!
- threat
- 1.Qd7+?
- 1...Re6
- 2.Rg8#
- 1...Be6
- 2.Rg8#
- 1...Rxd7+!
- 1...Re6
- 1.Qe7?
- threat
- 2.Sg7#
- 2.Rxd6#
- 2.Re6#
- 1...Rxg5
- 2.Sg7#
- 2.Rxg5#
- 2.Rf6#
- 1...Rxg6
- 2.Sg7#
- 2.Qf6#
- 1...Bxg5
- 2.Rxg5#
- 2.Rxd6#
- 2.Re6#
- 2.Rf6#
- 2.Qe5#
- 1...Rd1
- 2.Sg7#
- 2.Rxc6#
- 2.Rd6#
- 2.Re6#
- 2.Rh6#
- 2.Rg7#
- 2.Rg8#
- 2.Qf6#
- 1...Rd2
- 2.Sg7#
- 2.Rxc6#
- 2.Rd6#
- 2.Re6#
- 2.Rh6#
- 2.Rg7#
- 2.Rg8#
- 2.Qf6#
- 1...Rd3
- 2.Sg7#
- 2.Rxc6#
- 2.Rd6#
- 2.Re6#
- 2.Rh6#
- 2.Rg7#
- 2.Rg8#
- 2.Qf6#
- 1...Rd4
- 2.Sg7#
- 2.Rxc6#
- 2.Rd6#
- 2.Re6#
- 2.Rh6#
- 2.Rg7#
- 2.Rg8#
- 2.Qf6#
- 1...Rd5
- 2.Sg7#
- 2.Rxc6#
- 2.Rd6#
- 2.Re6#
- 2.Rh6#
- 2.Rg7#
- 2.Rg8#
- 2.Qf6#
- 2.Qe6#
- 2.Qf7#
- 1...Re6
- 2.Rxe6#
- 1...Rf6
- 2.Sg7#
- 2.Qxf6#
- 1...Rd8
- 2.Sg7#
- 2.Rxc6#
- 2.Rd6#
- 2.Re6#
- 2.Rh6#
- 2.Rg7#
- 2.Rg8#
- 2.Qf6#
- 1...Be6
- 2.Rxe6#
- 2.Rh6#
- 2.Rg8#
- 2.Qf6#
- 1...Bf7
- 2.Sg7#
- 1...Bg8
- 2.Sg7#
- 1...Bc1
- 2.Rxd6#
- 2.Re6#
- 2.Qe5#
- 1...Bd2
- 2.Rxd6#
- 2.Re6#
- 2.Qe5#
- 1...Bh2
- 2.Rxd6#
- 2.Re6#
- 1...Be3
- 2.Rxd6#
- 2.Re6#
- 2.Qe5#
- 1...Bg3
- 2.Rxd6#
- 2.Re6#
- 1...Be5
- 2.Rxd6#
- 2.Re6#
- 2.Qxe5#
- 1...Rd7+!
- threat
- 1.Qf7+?
- 1...Rf6
- 2.Qxf6#
- 1...Bxf7!
- 1...Rf6
- 1.Qc8+?
- 1...Re6
- 2.Rg8#
- 1...Be6
- 2.Rg8#
- 1...Rd7+!
- 1...Re6
- 1.Bf6?
- Keys
- 1.Se6!
- threat
- 2.Qf7#
- 1...Rxe6
- 2.Sg7#
- 1...Bxe6
- 2.Rxg4#
- 1...Rd7
- 2.Rf6#
- 1...Be5
- 2.Rf6#
- 1...Bg5
- 2.Rh6#
- 1...Se4
- 2.fxg4#
- 1...Sd5
- 2.Sd4#
- threat
- 1.Se6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 4
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- R(i);::S(C)
- R(i);N_GUARD,P_PINQ(F)::B(G)+R(D)
- B(c);S_CUTR(i)::B(G)+R(D)
- B(d);SBLOCK,XS(B)::B(G)+R(D),XR(i)
- S(a);OGATE::P(A),XS(a)
- Tries
- Try
- B(H);
- Threat
- DUALS(4)
- Vars
- R(e);XS(B)::S(C)
- R(i);XB(H)::S(C)
- R(i);P_PINQ(F)::B(G)+R(D)
- B(c);::S(C)
- Refutation
- B(d);XS(B)
- Try
- R(D);CHECK
- Refutation
- K(g);P-FLIGHT,XS(B)
- Try
- Q(F);XR(i)
- Threat
- DUALS(4)
- Vars
- B(d);XQ(F)::B(G)+R(D)
- Refutation
- Q(b);XQ(F)
- Try
- Q(F);CHECK
- Vars
- R(i);P_SPINR(i)::B(G)+R(D)
- B(c);P_SPINB(c)::B(G)+R(D)
- Refutation
- R(i);CHECK,XQ(F)
- Try
- Q(F);
- Threat
- DUALS(3)
- Vars
- R(i);::B(G)+R(D),XR(i)
- B(c);::S(C)
- Refutation
- R(i);CHECK
- Try
- Q(F);CHECK
- Vars
- R(i);N_GUARD,P_SPINR(i)::QAR1(F),XR(i)
- Refutation
- B(c);XQ(F)
- Try
- Q(F);CHECK
- Vars
- R(i);P_SPINR(i)::B(G)+R(D)
- B(c);P_SPINB(c)::B(G)+R(D)
- Refutation
- R(i);CHECK,P_SPINR(i)
- Try
- Actual
- S(B);
- Threat
- QAR2(F)
- Vars
- R(i);XS(B)::S(C)
- B(c);SBLOCK,XS(B)::B(G)+R(D),XR(e)
- R(i);P_PINQ(F)::B(G)+R(D),DCHECK
- B(d);SBLOCK::B(G)+R(D),DCHECK
- B(d);S_CUTR(e)::B(G)+R(D)
- S(a);SBLOCK::P(A),XR(e)
- S(a);S_CUTR(i)::S(B)
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).