MESON Chess Problem Database
Problem Display
PID: 183457 (7b/p4p2/1p2rnn1/1pB2Q2/2k2qRr/Pp5p/1PN5/1K1R3b w - - 0 1)
Weenink, Henri Gerard Maria
2nd Prize, Good Companions (January), 1924
#2
8 + 14
| 16055 | HGM Weenink (Euwe/Niemeijer/Rueb/Trotsenburg) | 1932 |
| 3174 | The Two-move Chess Problem Tradition and Development | 1966 |
| 3979 | Systematic Terminology | 1984 |
| 422 | Suomen Tehtavaniekat | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Qd4
- 2.Rdxd4#
- 1...Re3
- 2.Sxe3#
- 1...Rc6
- 2.Se3#
- 1...Rd6
- 2.Se3#
- 1...Be4
- 2.Rd4#
- 1...Se4
- 2.Qd5#
- 1...bxc2+
- 2.Qxc2#
- 1...bxc5
- 2.Qd3#
- 1...Qd4
- Tries
- 1.Bb4?
- threat
- 2.Qd3#
- 1...bxc2+
- 2.Qxc2#
- 1...Qd4
- 2.Rdxd4#
- 1...Qe4
- 2.Qf1#
- 1...Re3
- 2.Sxe3#
- 1...Rd6
- 2.Se3#
- 1...Be4
- 2.Rd4#
- 1...Se4
- 2.Qd5#
- 1...Se5
- 2.Se3#
- 1...Re4!
- threat
- 1.Bxb6?
- threat
- 2.Qd3#
- 2.Qc5#
- 1...bxc2+
- 2.Qxc2#
- 1...Rxb6
- 2.Se3#
- 1...Re4
- 2.Qc5#
- 1...Qd4
- 2.Rdxd4#
- 2.Qc5#
- 1...Qe4
- 2.Qf1#
- 2.Qc5#
- 1...Rh5
- 2.Qd3#
- 1...Re3
- 2.Sxe3#
- 2.Qc5#
- 1...Re5
- 2.Qd3#
- 1...Rc6
- 2.Se3#
- 2.Qd3#
- 1...Rd6
- 2.Se3#
- 2.Qc5#
- 1...Be4
- 2.Rd4#
- 2.Qc5#
- 1...Bd5
- 2.Qd3#
- 1...Se4
- 2.Qd5#
- 1...Sd5
- 2.Qd3#
- 1...Sd7
- 2.Qd3#
- 1...Se5
- 2.Se3#
- 1...axb6!
- threat
- 1.Rxf4+?
- 1...Re4
- 2.Se3#
- 1...Be4
- 2.Rd4#
- 1...Se4
- 2.Se3#
- 2.Qd5#
- 1...Sxf4
- 2.Rd4#
- 1...Rxf4!
- 1...Re4
- 1.Bb4?
- Keys
- 1.Bd6!
- threat
- 2.Qd3#
- 1...bxc2+
- 2.Qxc2#
- 1...Rxd6
- 2.Se3#
- 1...Re4
- 2.Qc8#
- 1...Qd4
- 2.Rdxd4#
- 1...Qe4
- 2.Qf1#
- 1...Re3
- 2.Sxe3#
- 1...Be4
- 2.Rd4#
- 1...Se4
- 2.Qd5#
- 1...Se5
- 2.Se3#
- threat
- 1.Bd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 2
- Sets
- Q(e);N_GUARD::R1(B),XQ(e)
- R(i);N_GUARD::S(D),XR(i)
- R(i);N_GUARD::S(D)
- B(a);N_SPINQ(e),P_PINS(D),S_CUTQ(e)::R1(B)
- S(j);N_GUARD,N_SPINQ(e),S_CUTB(a)::QAB1(H)
- P(b);CHECK,OGATE,XS(D)::QAR2(H),XP(b)
- P(h);SBLOCK,XB(G)::QAB1(H)
- Tries
- Try
- B(G);
- Threat
- QAB1(H)
- Vars
- P(b);CHECK,OGATE,XS(D)::QAR2(H),XP(b)
- Q(e);N_GUARD::R1(B),XQ(e)
- Q(e);OGATE,P_PINS(D)::QAB(H)
- R(i);N_GUARD::S(D),XR(i)
- R(i);N_GUARD::S(D)
- B(a);N_SPINQ(e),P_PINS(D),S_CUTQ(e)::R1(B)
- S(j);N_GUARD,N_SPINQ(e),S_CUTB(a)::QAB1(H)
- S(k);S_CUTR(i)::S(D)
- Refutation
- R(i);N_SPINQ(e)
- Try
- B(G);XP(h)
- Threat
- DUALS(2)
- Vars
- P(b);CHECK,OGATE,XS(D)::QAR2(H),XP(b)
- R(i);N_GUARD,XB(G)::S(D)
- R(i);N_SPINQ(e)::QAR1(H)
- R(f);::QAB1(H)
- R(i);::QAB1(H)
- B(a);::QAB1(H)
- S(j);N_GUARD,N_SPINQ(e),S_CUTB(a)::QAB1(H)
- S(j);::QAB1(H)
- S(k);S_CUTR(i)::S(D)
- Refutation
- P(l);XB(G)
- Try
- R(F);CHECK,XQ(e)
- Vars
- R(i);P_SPINR(i)::S(D)
- B(a);P_PINS(D),P_SPINB(a)::R1(B)
- S(k);XR(F)::R1(B)
- Refutation
- R(f);XR(F)
- Try
- Actual
- B(G);
- Threat
- QAB1(H)
- Vars
- P(b);CHECK,OGATE,XS(D)::QAR2(H),XP(b)
- R(i);N_GUARD,XB(G)::S(D)
- R(i);N_SPINQ(e),OGATE::QAR(H)
- Q(e);N_GUARD::R1(B),XQ(e)
- Q(e);OGATE,P_PINS(D)::QAB(H)
- R(i);N_GUARD::S(D),XR(i)
- B(a);N_SPINQ(e),P_PINS(D),S_CUTQ(e)::R1(B)
- S(j);N_GUARD,N_SPINQ(e),S_CUTB(a)::QAB1(H)
- S(k);S_CUTR(i)::S(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).