MESON Chess Problem Database
Problem Display
PID: 231168 (2K1B3/b6p/r2P4/1N4R1/N2pkp2/7Q/3P1P2/4n3 w - - 0 1)
Bottger, FBH
1/2 Prize, Nederlandse Schaakbond, 1927
#2
9 + 7
| 6490 | yacpdb | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rxa4
- 2.Bc6#
- 1...Ra5
- 2.Bc6#
- 1...Rb6
- 2.Sc5#
- 1...Rc6+
- 2.Bxc6#
- 1...Rxd6
- 2.Sxd6#
- 1...Bc5
- 2.Sxc5#
- 1...Bb6
- 2.Bc6#
- 1...Bb8
- 2.Sc5#
- 1...Sc2
- 2.d3#
- 1...Sg2
- 2.d3#
- 1...Sd3
- 2.f3#
- 1...Sf3
- 2.Qf5#
- 2.Qxh7#
- 1...d3
- 2.Sac3#
- 1...f3
- 2.Qf5#
- 1...h5
- 2.Bg6#
- 1...h6
- 2.Bg6#
- 1...Rxa4
- Tries
- 1.Kb7?
- 1...Rxa4
- 2.Bc6#
- 1...Rxd6
- 2.Sxd6#
- 1...Sf3
- 2.Qf5#
- 2.Qxh7#
- 1...f3
- 2.Qf5#
- 1...Ra5
- 2.Bc6#
- 1...Rc6
- 2.Bxc6#
- 1...Bc5
- 2.Sxc5#
- 1...Bb6
- 2.Bc6#
- 1...Bb8
- 2.Sc5#
- 1...Sc2
- 2.d3#
- 1...Sg2
- 2.d3#
- 1...Sd3
- 2.f3#
- 1...d3
- 2.Sac3#
- 1...h5
- 2.Bg6#
- 1...h6
- 2.Bg6#
- 1...Rb6+!
- 1...Rxa4
- 1.Kd8?
- 1...Rxd6+
- 2.Sxd6#
- 1...Rxa4
- 2.Bc6#
- 1...Sf3
- 2.Qf5#
- 2.Qxh7#
- 1...f3
- 2.Qf5#
- 1...Ra5
- 2.Bc6#
- 1...Rb6
- 2.Sc5#
- 1...Rc6
- 2.Bxc6#
- 1...Bc5
- 2.Sxc5#
- 1...Bb8
- 2.Sc5#
- 1...Sc2
- 2.d3#
- 1...Sg2
- 2.d3#
- 1...Sd3
- 2.f3#
- 1...d3
- 2.Sac3#
- 1...h5
- 2.Bg6#
- 1...h6
- 2.Bg6#
- 1...Bb6+!
- 1...Rxd6+
- 1.Sb6?
- threat
- 2.Bc6#
- 1...Sf3
- 2.Qf5#
- 2.Qxh7#
- 1...f3
- 2.Qf5#
- 1...Rxb6!
- threat
- 1.Bf7?
- threat
- 2.Bd5#
- 1...Rxd6
- 2.Sxd6#
- 1...Sf3
- 2.Qf5#
- 2.Qxh7#
- 1...f3
- 2.Qf5#
- 1...Rc6+!
- threat
- 1.Qb3?
- 1...Rc6+
- 2.Bxc6#
- 1...Rxa4
- 2.Bc6#
- 1...Rxd6
- 2.Sxd6#
- 1...Sd3
- 2.Qd5#
- 1...d3
- 2.Qd5#
- 1...Ra5
- 2.Bc6#
- 1...Rb6
- 2.Sc5#
- 1...Bc5
- 2.Sxc5#
- 1...Bb6
- 2.Bc6#
- 1...Bb8
- 2.Sc5#
- 1...Sc2
- 2.f3#
- 1...Sg2
- 2.f3#
- 1...Sf3
- 2.d3#
- 1...h5
- 2.Bg6#
- 1...h6
- 2.Bg6#
- 1...f3!
- 1...Rc6+
- 1.f3+?
- 1...Sxf3
- 2.Qf5#
- 2.Qxh7#
- 1...Kd3!
- 1...Sxf3
- 1.Kb7?
- Keys
- 1.Rh5!
- 1...Rc6+
- 2.Bxc6#
- 1...Rxa4
- 2.Bc6#
- 1...Rxd6
- 2.Sxd6#
- 1...Sf3
- 2.Qf5#
- 1...f3
- 2.Qf5#
- 1...Ra5
- 2.Bc6#
- 1...Rb6
- 2.Sc5#
- 1...Bc5
- 2.Sxc5#
- 1...Bb6
- 2.Bc6#
- 1...Bb8
- 2.Sc5#
- 1...Sc2
- 2.d3#
- 1...Sg2
- 2.d3#
- 1...Sd3
- 2.f3#
- 1...d3
- 2.Sac3#
- 1...h6
- 2.Bg6#
- 1...Rc6+
- 1.Rh5!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- R(e);N_GUARD,XS(D)::B(I)
- R(e);N_GUARD::B(I)
- R(e);S_CUTB(f)::S(D)
- R(e);CHECK,N_GUARD::B(I),XR(e)
- R(e);XP(G)::S(E),XR(e)
- B(f);N_GUARD::S(D),XB(f)
- B(f);S_CUTR(e)::B(I)
- B(f);N_GUARD::S(D)
- S(a);N_GUARD::P(A)
- S(a);N_GUARD,SBLOCK::P(B)
- P(b);N_GUARD::S(D)
- P(d);::QAB1(C)
- P(g);N_GUARD::B(I)
- Tries
- Try
- K(H);S_FLIGHT
- Vars
- R(e);N_GUARD,XS(D)::B(I)
- R(e);XP(G)::S(E),XR(e)
- P(d);::QAB1(C)
- R(e);N_GUARD::B(I)
- R(e);N_GUARD::B(I),XR(e)
- B(f);N_GUARD::S(D),XB(f)
- B(f);S_CUTR(e)::B(I)
- B(f);N_GUARD::S(D)
- S(a);N_GUARD::P(A)
- S(a);N_GUARD,SBLOCK::P(B)
- P(b);N_GUARD::S(D)
- P(g);N_GUARD::B(I)
- Refutation
- R(e);CHECK
- Try
- K(H);P-FLIGHT
- Vars
- R(e);CHECK,XP(G)::S(E),XR(e)
- R(e);N_GUARD,XS(D)::B(I)
- P(d);::QAB1(C)
- R(e);N_GUARD::B(I)
- R(e);S_CUTB(f)::S(D)
- R(e);N_GUARD::B(I),XR(e)
- B(f);N_GUARD::S(D),XB(f)
- B(f);N_GUARD::S(D)
- S(a);N_GUARD::P(A)
- S(a);N_GUARD,SBLOCK::P(B)
- P(b);N_GUARD::S(D)
- P(g);N_GUARD::B(I)
- Refutation
- B(f);CHECK
- Try
- S(D);
- Threat
- B(I)
- Vars
- P(d);::QAB1(C)
- Refutation
- R(e);XS(D)
- Try
- B(I);
- Threat
- B(I)
- Vars
- R(e);XP(G)::S(E),XR(e)
- P(d);::QAB1(C)
- Refutation
- R(e);CHECK
- Try
- Q(C);
- Vars
- R(e);CHECK,N_GUARD::B(I),XR(e)
- R(e);N_GUARD,XS(D)::B(I)
- R(e);XP(G)::S(E),XR(e)
- S(a);SBLOCK::QAB1(C)
- P(b);::QAB1(C)
- R(e);N_GUARD::B(I)
- R(e);S_CUTB(f)::S(D)
- B(f);N_GUARD::S(D),XB(f)
- B(f);S_CUTR(e)::B(I)
- B(f);N_GUARD::S(D)
- S(a);N_GUARD::P(B)
- S(a);N_GUARD,SBLOCK::P(A)
- P(g);N_GUARD::B(I)
- Refutation
- P(d);
- Try
- P(B);CHECK
- Refutation
- K(c);S_FLIGHT
- Try
- Actual
- R(F);
- Vars
- R(e);CHECK,N_GUARD::B(I),XR(e)
- R(e);N_GUARD,XS(D)::B(I)
- R(e);XP(G)::S(E),XR(e)
- S(a);SBLOCK::QAB1(C)
- P(d);::QAB1(C)
- R(e);N_GUARD::B(I)
- R(e);S_CUTB(f)::S(D)
- B(f);N_GUARD::S(D),XB(f)
- B(f);S_CUTR(e)::B(I)
- B(f);N_GUARD::S(D)
- S(a);N_GUARD::P(A)
- S(a);N_GUARD,SBLOCK::P(B)
- P(b);N_GUARD::S(D)
- P(g);N_GUARD::B(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).