MESON Chess Problem Database
Problem Display
PID: 211852 (B6q/p2Pp1b1/3R3r/pNkN2n1/P3PQ2/1PB4p/6n1/1K6 w - - 0 1)
Burger, Robert Eugene
The Problemist, 1986
#2
11 + 10
SOLUTION
- SOUND
- Sets
- 1...Qc8
- 2.dxc8Q#
- 2.dxc8R#
- 1...Rh4
- 2.Rc6#
- 1...Rh5
- 2.Rc6#
- 1...Rf6
- 2.Bd4#
- 1...Rh7
- 2.Rc6#
- 1...Bf6
- 2.Rc6#
- 1...Se6
- 2.Rc6#
- 1...e6
- 2.Rc6#
- 1...Qc8
- Tries
- 1.Sf6?
- threat
- 2.Rc6#
- 2.Qe5#
- 1...Rxf6
- 2.Qe5#
- 1...Bxf6
- 2.Rc6#
- 1...Sxf4
- 2.Rc6#
- 1...exd6
- 2.Qxd6#
- 1...exf6
- 2.Rc6#
- 2.Qf5#
- 1...Qc8
- 2.Qe5#
- 2.dxc8Q#
- 2.dxc8R#
- 1...Qg8
- 2.Rc6#
- 1...Se3
- 2.Rc6#
- 2.Qxe3#
- 1...Sf3
- 2.Rc6#
- 1...Sf7
- 2.Rc6#
- 1...e5
- 2.Rc6#
- 2.Qxe5#
- 1...Qxa8!
- threat
- 1.Bf6?
- threat
- 2.Rc6#
- 2.Qc1#
- 1...Qxa8
- 2.Qc1#
- 1...Rxf6
- 2.Qc1#
- 1...Bxf6
- 2.Rc6#
- 1...Sxf4
- 2.Rc6#
- 1...exd6
- 2.Qc1#
- 2.Qxd6#
- 1...Qc8
- 2.Qc1#
- 2.dxc8Q#
- 2.dxc8R#
- 1...Se1
- 2.Rc6#
- 2.Qe3#
- 2.Qf2#
- 1...Se3
- 2.Rc6#
- 2.Qxe3#
- 1...Sxe4!
- threat
- 1.Qc1?
- threat
- 2.Bb4#
- 2.Bd4#
- 2.Be5#
- 2.Bf6#
- 2.Bxg7#
- 2.Qa3#
- 1...Sxe4
- 2.Bb4#
- 2.Bd4#
- 2.Qa3#
- 1...Rf6
- 2.Ba1#
- 2.Be1#
- 2.Bb2#
- 2.Bd2#
- 2.Bb4#
- 2.Bd4#
- 2.Bxa5#
- 2.Be5#
- 2.Bxf6#
- 2.Qa3#
- 1...Bd4
- 2.Bb4#
- 2.Bxd4#
- 2.Qa3#
- 1...Be5
- 2.Bb4#
- 2.Bd4#
- 2.Bxe5#
- 2.Qa3#
- 1...Bf6
- 2.Bb4#
- 2.Bd4#
- 2.Be5#
- 2.Bxf6#
- 2.Rc6#
- 2.Qa3#
- 1...Bf8
- 2.Bb4#
- 2.Bd4#
- 2.Be5#
- 2.Bf6#
- 2.Bg7#
- 2.Bxh8#
- 2.Qa3#
- 1...Se1
- 2.Bb4#
- 2.Bd4#
- 2.Qa3#
- 1...Se3
- 2.Bb4#
- 2.Bd4#
- 2.Qa3#
- 1...e5
- 2.Ba1#
- 2.Be1#
- 2.Bb2#
- 2.Bd2#
- 2.Bb4#
- 2.Bd4#
- 2.Bxa5#
- 2.Bxe5#
- 2.Qa3#
- 1...Bxc3!
- threat
- 1.e5?
- threat
- 2.Bd4#
- 2.Qc4#
- 2.Qd4#
- 1...Bxe5
- 2.Qc4#
- 1...Sxf4
- 2.Bd4#
- 1...Rh4
- 2.Bd4#
- 1...Se3
- 2.Bd4#
- 2.Qxe3#
- 2.Qd4#
- 1...Sf3
- 2.Qc4#
- 1...Se4
- 2.Bd4#
- 1...Se6
- 2.Qc4#
- 1...Qh7+!
- threat
- 1.Sf6?
- Keys
- 1.Qf6!
- threat
- 2.Bd4#
- 2.Rc6#
- 1...Qxa8
- 2.Bd4#
- 1...Rxf6
- 2.Bd4#
- 1...Bxf6
- 2.Rc6#
- 1...Sxe4
- 2.Bd4#
- 1...exd6
- 2.Bd4#
- 1...Qc8
- 2.Bd4#
- 2.dxc8Q#
- 2.dxc8R#
- 1...Sf3
- 2.Rc6#
- 1...Se6
- 2.Rc6#
- 1...e5
- 2.Rc6#
- threat
- 1.Qf6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 4
- Sets
- Q(j);OGATE::PXQ(j)=Q
- R(f);N_GUARD::R1(I)
- R(f);S_CUTB(i)::B(C)
- B(i);S_CUTR(f)::R1(I)
- S(e);S_CUTR(f)::R1(I)
- P(h);S_CUTR(f)::R1(I)
- Tries
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- R(f);XS(H)::QAR2(F)
- B(i);XS(H)::R1(I)
- S(a);XQ(F)::R1(I)
- P(h);OGATE,XR(I)::QAB1(F),XP(h)
- Q(j);::R1(I)
- S(e);::R1(I)
- Refutation
- Q(j);XB(K)
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- Q(j);XB(K)::QAR(F)
- R(f);XB(C)::QAR(F)
- B(i);XB(C)::R1(I)
- S(a);XQ(F)::R1(I)
- Refutation
- S(e);XP(E)
- Try
- Q(F);
- Threat
- DUALS(6)
- Refutation
- B(i);P_SPINB(i),XB(C)
- Try
- P(E);
- Threat
- DUALS(3)
- Vars
- B(i);XP(E)::QAR1(F)
- S(a);XQ(F)::B(C)
- R(f);::B(C)
- S(e);::QAR1(F)
- S(e);::B(C)
- Refutation
- Q(j);CHECK
- Try
- Actual
- Q(F);
- Threat
- DUALS(2)
- Vars
- Q(j);XB(K)::B(C)
- R(f);XQ(F)::B(C)
- B(i);XQ(F)::R1(I)
- S(e);XP(E)::B(C)
- P(h);XR(I)::B(C)
- S(e);::R1(I)
- P(h);::R1(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).