MESON Chess Problem Database
Problem Display
PID: 140129 (3R4/8/rpNNpp2/8/6Pq/3kPQn1/pP1b4/Kn1BB3 w - - 0 1)
Wolfs, WJ
Probleemblad, 1973
#2
10 + 10
SOLUTION
- SOUND
- Sets
- 1...Bc1
- 2.Sb4#
- 1...Bc3
- 2.e4#
- 1...Bb4
- 2.Sxb4#
- 2.e4#
- 1...Ba5
- 2.e4#
- 1...Sc3
- 2.Sb4#
- 1...Sf1
- 2.Qe2#
- 2.Qe4#
- 1...Sh1
- 2.Qe2#
- 2.Qe4#
- 1...Se2
- 2.Qxe2#
- 2.Qe4#
- 1...Se4
- 2.Qe2#
- 2.Qxe4#
- 1...Sf5
- 2.Qe2#
- 2.Qe4#
- 1...Sh5
- 2.Qe2#
- 2.Qe4#
- 1...f5
- 2.Se5#
- 1...Bc1
- Tries
- 1.Be2+?
- 1...Sxe2
- 2.Qe4#
- 1...Kc2!
- 1...Sxe2
- 1.Bxg3?
- threat
- 2.Qe2#
- 2.Qe4#
- 1...Bxe3
- 2.Qe2#
- 1...Bc1
- 2.Qe2#
- 1...Be1
- 2.Qe2#
- 1...Bc3
- 2.Qe2#
- 1...Bb4
- 2.Qe2#
- 1...Ba5
- 2.Qe2#
- 1...Qh1
- 2.Qe2#
- 1...Qh2
- 2.Qe4#
- 1...Qh7
- 2.Qe2#
- 1...Ra4
- 2.Qe2#
- 1...Sc3
- 2.Sb4#
- 1...f5
- 2.Se5#
- 2.Qe2#
- 1...Qxg4!
- threat
- 1.Qd5+?
- 1...Kxe3
- 2.Qf3#
- 2.Qd4#
- 1...exd5!
- 1...Kxe3
- 1.Qf1+?
- 1...Kxe3
- 2.Qf3#
- 1...Se2
- 2.Qxe2#
- 1...Sxf1!
- 1...Kxe3
- 1.Qf4?
- threat
- 2.Sc4#
- 2.Sb5#
- 2.Sf5#
- 2.Sb7#
- 2.Sf7#
- 2.Sc8#
- 2.Se8#
- 2.Qd4#
- 1...Qxg4
- 2.Sc4#
- 2.Sb5#
- 2.Sf5#
- 2.Sb7#
- 2.Sf7#
- 2.Sc8#
- 2.Se8#
- 1...Bxe3
- 2.Sb4#
- 2.Qc4#
- 1...Qg5
- 2.Sf5#
- 2.Qd4#
- 1...Qh1
- 2.Qd4#
- 1...Qh5
- 2.Sf5#
- 2.Qd4#
- 1...Qh7
- 2.Sf7#
- 2.Qd4#
- 1...Qh8
- 2.Se8#
- 2.Qd4#
- 1...Ra4
- 2.Sc4#
- 1...Ra5
- 2.Sb5#
- 2.Qd4#
- 1...Ra7
- 2.Sb7#
- 2.Qd4#
- 1...Ra8
- 2.Sc8#
- 2.Qd4#
- 1...Bb4
- 2.Sxb4#
- 2.Qd4#
- 1...Sc3
- 2.Sb4#
- 2.Qd4#
- 1...Se2
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sf5
- 2.Sxf5#
- 2.Qe4#
- 1...b5
- 2.Sc4#
- 2.Sxb5#
- 2.Sf5#
- 2.Sb7#
- 2.Sf7#
- 2.Sc8#
- 2.Se8#
- 2.Qd4#
- 1...e5
- 2.Sc4#
- 2.Sb5#
- 2.Sf5#
- 2.Sb7#
- 2.Sf7#
- 2.Sc8#
- 2.Se8#
- 1...f5
- 2.Se5#
- 2.Qd4#
- 1...Bc3!
- threat
- 1.Be2+?
- Keys
- 1.Bb3!
- threat
- 2.Sc4#
- 2.Se4#
- 2.Sb5#
- 2.Sf5#
- 2.Sb7#
- 2.Sf7#
- 2.Sc8#
- 2.Se8#
- 1...Qxg4
- 2.Se4#
- 1...Qg5
- 2.Sf5#
- 1...Qh5
- 2.Sf5#
- 1...Qh7
- 2.Sf7#
- 1...Qh8
- 2.Se8#
- 1...Ra4
- 2.Sc4#
- 1...Ra5
- 2.Sb5#
- 1...Ra7
- 2.Sb7#
- 1...Ra8
- 2.Sc8#
- 1...Bc3
- 2.e4#
- 1...Bb4
- 2.Sxb4#
- 2.e4#
- 1...Sc3
- 2.Sb4#
- 1...Se2
- 2.Qe4#
- 1...Se4
- 2.Sxe4#
- 1...Sf5
- 2.Sxf5#
- 1...b5
- 2.Sc4#
- 2.Se4#
- 2.Sxb5#
- 2.Sf5#
- 2.Sb7#
- 2.Sf7#
- 2.Sc8#
- 2.Se8#
- 1...f5
- 2.Se5#
- threat
- 1.Bb3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 12
- REMOVED MATES = 2
- Sets
- B(c);N_GUARD::S(H)
- B(c);N_GUARD,P_PINP(D)::QAR(F)+P(E)
- B(c);N_GUARD::QAR(F)+P(E)
- S(a);S_CUTB(c)::S(H)
- P(j);N_GUARD::S(H)
- Tries
- Try
- B(B);CHECK
- Vars
- S(e);SBLOCK,XB(B)::QAB1(F)
- Refutation
- K(d);S_FLIGHT
- Try
- B(C);XS(e)
- Threat
- DUALS(2)
- Vars
- B(c);P_SPINB(c),XP(E)::QAB1(F)
- B(c);::QAB1(F)
- B(c);P_PINP(D)::QAB1(F)
- Q(f);::QAB1(F)
- R(g);::QAB1(F)
- S(a);S_CUTB(c)::S(H)
- Refutation
- Q(f);XP(G)
- Try
- Q(F);CHECK
- Refutation
- P(i);XQ(F)
- Try
- Q(F);CHECK
- Vars
- K(d);OGATEB,P-FLIGHT,XP(E)::QAR1(F)
- S(e);N_GUARD,P_SPINS(e)::QAB1(F),XS(e)
- Refutation
- S(e);XQ(F)
- Try
- Q(F);
- Threat
- DUALS(8)
- Vars
- Q(f);::QAR1(F)
- R(g);::R(J)+S(I)
- S(e);N_GUARD::QAB1(F)
- S(e);N_GUARD::QAB1(F),XS(e)
- Refutation
- B(c);P_PINP(D)
- Try
- Actual
- B(B);
- Threat
- DUALS(8)
- Vars
- Q(f);XP(G)::R(J)+S(I)
- Q(f);::R(J)+S(I)
- R(g);::R(J)+S(I)
- B(c);N_GUARD,P_PINP(D)::QAR(F)+P(E)
- S(a);S_CUTB(c)::S(H)
- S(e);N_GUARD,SBLOCK::QAB1(F)
- S(e);::R(J)+S(I),XS(e)
- P(j);N_GUARD::S(H)
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).