MESON Chess Problem Database
Problem Display
PID: 202488 (2RBq3/pp2p2P/2Bp4/8/1N6/Np4P1/1p3nb1/1rk1K1Qn w - - 0 1)
ten Cate, Pieter
Het Kompas, 1923
#2
9 + 12
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qh5
- 2.Bd5#
- 1...Qg6
- 2.Be4#
- 1...Qf7
- 2.Bd5#
- 1...Qf8
- 2.Bxg2#
- 2.Bf3#
- 2.Be4#
- 2.Bd5#
- 1...Qg8
- 2.Bd5#
- 1...Bh3
- 2.Bd7#
- 1...Sd1
- 2.Sd3#
- 1...Sd3+
- 2.Sxd3#
- 1...Sh3
- 2.Sd3#
- 2.Qe3#
- 1...Se4
- 2.Sd3#
- 1...Sg4
- 2.Sd3#
- 1...d5
- 2.Bd7#
- 2.Bxe8#
- 1...e5
- 2.Bg5#
- 1...e6
- 2.Bg5#
- 1...Qh5
- Tries
- 1.Ke2+?
- 1...Sd1
- 2.Sd3#
- 2.Qxd1#
- 1...Bf1+!
- 1...Sd1
- 1.Bb6?
- threat
- 2.Be3#
- 1...Sd3+
- 2.Sxd3#
- 1...Sd1
- 2.Sd3#
- 1...Se4
- 2.Sd3#
- 1...Sg4
- 2.Sd3#
- 1...axb6!
- threat
- 1.Qxf2?
- threat
- 2.Sd3#
- 2.Qe3#
- 2.Qd2#
- 2.Qf4#
- 1...Qg6
- 2.Be4#
- 2.Qe3#
- 2.Qd2#
- 2.Qf4#
- 1...Qf7
- 2.Sd3#
- 2.Bd5#
- 2.Qe3#
- 2.Qd2#
- 1...Qf8
- 2.Sd3#
- 2.Bxg2#
- 2.Bf3#
- 2.Be4#
- 2.Bd5#
- 2.Qe3#
- 2.Qd2#
- 1...Bf1
- 2.Qe3#
- 2.Qd2#
- 2.Qf4#
- 1...Bf3
- 2.Sd3#
- 2.Qe3#
- 2.Qd2#
- 1...Be4
- 2.Qe3#
- 2.Qd2#
- 2.Qf4#
- 1...e5
- 2.Sd3#
- 2.Bg5#
- 2.Qe3#
- 2.Qd2#
- 1...Sxf2!
- threat
- 1.Qxh1?
- threat
- 2.Qh6#
- 1...Sd3+
- 2.Sxd3#
- 1...Sxh1
- 2.Sd3#
- 1...Qh5
- 2.Bd5#
- 1...Qg6
- 2.Be4#
- 1...Qf7
- 2.Bd5#
- 1...Qf8
- 2.Bxg2#
- 2.Bf3#
- 2.Be4#
- 2.Bd5#
- 1...Qg8
- 2.Bd5#
- 1...Bh3
- 2.Bd7#
- 1...Sd1
- 2.Sd3#
- 1...Sh3
- 2.Sd3#
- 1...Se4
- 2.Sd3#
- 1...Sg4
- 2.Sd3#
- 1...Bxh1!
- threat
- 1.h8Q?
- threat
- 2.Qc3#
- 2.Qh6#
- 1...Sd3+
- 2.Sxd3#
- 1...Qxc6
- 2.Qh6#
- 1...Qh5
- 2.Bd5#
- 2.Qc3#
- 1...Qg6
- 2.Be4#
- 1...Qf7
- 2.Bd5#
- 2.Qc3#
- 1...Qf8
- 2.Bxg2#
- 2.Bf3#
- 2.Be4#
- 2.Bd5#
- 2.Qc3#
- 1...Qg8
- 2.Bd5#
- 2.Qc3#
- 1...Be4
- 2.Qh6#
- 1...Sd1
- 2.Sd3#
- 1...Sh3
- 2.Sd3#
- 2.Qe3#
- 2.Qc3#
- 1...Se4
- 2.Sd3#
- 1...Sg4
- 2.Sd3#
- 2.Qc3#
- 1...e5
- 2.Bg5#
- 2.Qh6#
- 1...Qxh8!
- threat
- 1.Ke2+?
- Keys
- 1.Qh2!
- threat
- 2.Qh6#
- 1...Sd3+
- 2.Sxd3#
- 1...Qh5
- 2.Bd5#
- 1...Qg6
- 2.Be4#
- 1...Qf7
- 2.Bd5#
- 1...Qf8
- 2.Bxg2#
- 2.Bf3#
- 2.Be4#
- 2.Bd5#
- 1...Qg8
- 2.Bd5#
- 1...Bh3
- 2.Bd7#
- 1...Sd1
- 2.Sd3#
- 1...Sh3
- 2.Sd3#
- 1...Se4
- 2.Sd3#
- 1...Sg4
- 2.Sd3#
- threat
- 1.Qh2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 2
- Sets
- Q(l);N_GUARD::R(H)+B(F)
- B(f);N_GUARD::R(H)+B(F)
- S(e);N_GUARD::S(E)
- S(e);CHECK,N_GUARD::S(E),XS(e)
- P(k);OGATE::B(I)
- Tries
- Try
- K(A);CHECK,P-FLIGHT
- Refutation
- B(f);CHECK,P_SPINB(f)
- Try
- B(I);
- Threat
- B(I)
- Vars
- S(e);CHECK,N_GUARD::S(E),XS(e)
- S(e);N_GUARD::S(E)
- Refutation
- P(i);XB(I)
- Try
- Q(B);XS(e)
- Threat
- DUALS(4)
- Refutation
- S(c);XQ(B)
- Try
- Q(B);XS(c)
- Threat
- QAB(B)
- Vars
- S(e);CHECK,N_GUARD::S(E),XS(e)
- S(e);N_GUARD,XQ(B)::S(E)
- Q(l);N_GUARD::R(H)+B(F)
- B(f);N_GUARD::R(H)+B(F)
- S(e);N_GUARD::S(E)
- Refutation
- B(f);XQ(B)
- Try
- P(G);
- Threat
- DUALS(2)
- Vars
- S(e);CHECK,N_GUARD::S(E),XS(e)
- Q(l);P_SPINQ(l),XB(F)::QAB(G)
- Q(l);N_GUARD::R(H)+B(F)
- B(f);::QAB(G)
- S(e);N_GUARD::S(E)
- Refutation
- Q(l);XQ(G)
- Try
- Actual
- Q(B);
- Threat
- QAB(B)
- Vars
- S(e);CHECK,N_GUARD::S(E),XS(e)
- Q(l);N_GUARD::R(H)+B(F)
- B(f);N_GUARD::R(H)+B(F)
- S(e);N_GUARD::S(E)
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).