MESON Chess Problem Database
Problem Display
PID: 217737 (bB1Nn3/6pR/2p4b/kBK3p1/6P1/1pp1n3/qN2P3/R5Q1 w - - 0 1)
Kleck, WJ
British Chess Magazine, 1920
#2
10 + 11
SOLUTION
- SOUND
- Sets
- 1...Qxa1
- 2.Qxa1#
- 1...Qa3+
- 2.Rxa3#
- 1...Qa4
- 2.Rxa4#
- 1...Bb7
- 2.Sxb7#
- 1...Sd1
- 2.Sc4#
- 1...Sf1
- 2.Sc4#
- 1...Sc2
- 2.Sc4#
- 1...Sg2
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sxg4
- 2.Sc4#
- 1...Sd5
- 2.Sc4#
- 1...Sf5
- 2.Sc4#
- 1...Sd6
- 2.Bc7#
- 1...Sf6
- 2.Bc7#
- 1...Sc7
- 2.Bxc7#
- 1...cxb2
- 2.Qe1#
- 1...c2
- 2.Qe1#
- 1...g6
- 2.Ra7#
- 1...Qxa1
- Tries
- 1.Be5?
- threat
- 2.Bxc3#
- 1...Qa3+
- 2.Rxa3#
- 1...cxb2
- 2.Bc3#
- 2.Qe1#
- 1...Sd1
- 2.Sc4#
- 1...Sc2
- 2.Sc4#
- 1...Sd5
- 2.Sc4#
- 1...c2
- 2.Bc3#
- 2.Qe1#
- 1...cxb5!
- threat
- 1.Ba7?
- threat
- 2.Bb6#
- 1...Qa3+
- 2.Rxa3#
- 1...Sc4
- 2.Sxc4#
- 1...Sd5
- 2.Sc4#
- 1...cxb5!
- threat
- 1.Rxg7?
- threat
- 2.Ra7#
- 1...Qa3+
- 2.Rxa3#
- 1...Sxg7
- 2.Bc7#
- 1...Bb7
- 2.Sxb7#
- 1...Sc7
- 2.Bxc7#
- 1...Bxg7!
- threat
- 1.Qxe3?
- threat
- 2.Sc4#
- 2.Qxc3#
- 1...Qa3+
- 2.Rxa3#
- 1...cxb2
- 2.Qd2#
- 2.Qc3#
- 1...Sd6
- 2.Bc7#
- 2.Qxc3#
- 1...c2
- 2.Sc4#
- 2.Qd2#
- 2.Qc3#
- 1...cxb5!
- threat
- 1.Qb1?
- 1...Qa3+
- 2.Rxa3#
- 1...Qxa1
- 2.Qxa1#
- 1...Sxg4
- 2.Sc4#
- 1...cxb2
- 2.Qe1#
- 1...Bb7
- 2.Sxb7#
- 1...Qa4
- 2.Rxa4#
- 1...Sd1
- 2.Sc4#
- 1...Sf1
- 2.Sc4#
- 1...Sc2
- 2.Sc4#
- 1...Sg2
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sd5
- 2.Sc4#
- 1...Sf5
- 2.Sc4#
- 1...Sd6
- 2.Bc7#
- 1...Sf6
- 2.Bc7#
- 1...Sc7
- 2.Bxc7#
- 1...c2
- 2.Qe1#
- 1...g6
- 2.Ra7#
- 1...cxb5!
- 1...Qa3+
- 1.Qc1?
- threat
- 2.Qxc3#
- 1...Qa3+
- 2.Rxa3#
- 1...cxb2
- 2.Qd2#
- 2.Qe1#
- 2.Qc3#
- 1...Sd1
- 2.Sc4#
- 1...Sc2
- 2.Sc4#
- 1...Sd5
- 2.Sc4#
- 1...c2
- 2.Qd2#
- 2.Qe1#
- 1...cxb5!
- threat
- 1.Qd1?
- 1...Qa3+
- 2.Rxa3#
- 1...Qxa1
- 2.Qxa1#
- 1...Sxd1
- 2.Sc4#
- 1...Sxg4
- 2.Sc4#
- 1...cxb2
- 2.Qe1#
- 2.Qd2#
- 1...Bb7
- 2.Sxb7#
- 1...Qa4
- 2.Rxa4#
- 1...Sf1
- 2.Sc4#
- 1...Sc2
- 2.Sc4#
- 1...Sg2
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sd5
- 2.Sc4#
- 1...Sf5
- 2.Sc4#
- 1...Sd6
- 2.Bc7#
- 1...Sf6
- 2.Bc7#
- 1...Sc7
- 2.Bxc7#
- 1...c2
- 2.Qe1#
- 2.Qd2#
- 1...g6
- 2.Ra7#
- 1...cxb5!
- 1...Qa3+
- 1.Qe1?
- threat
- 2.Qxc3#
- 1...Qa3+
- 2.Rxa3#
- 1...Sd1
- 2.Sc4#
- 1...Sc2
- 2.Sc4#
- 1...Sd5
- 2.Sc4#
- 1...cxb5!
- threat
- 1.Qf1?
- 1...Qa3+
- 2.Rxa3#
- 1...Qxa1
- 2.Qxa1#
- 1...Sxf1
- 2.Sc4#
- 1...Sxg4
- 2.Sc4#
- 1...cxb2
- 2.Qe1#
- 1...Bb7
- 2.Sxb7#
- 1...Qa4
- 2.Rxa4#
- 1...Sd1
- 2.Sc4#
- 1...Sc2
- 2.Sc4#
- 1...Sg2
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sd5
- 2.Sc4#
- 1...Sf5
- 2.Sc4#
- 1...Sd6
- 2.Bc7#
- 1...Sf6
- 2.Bc7#
- 1...Sc7
- 2.Bxc7#
- 1...c2
- 2.Qe1#
- 1...g6
- 2.Ra7#
- 1...cxb5!
- 1...Qa3+
- 1.Be5?
- Keys
- 1.Qh1!
- 1...Qa3+
- 2.Rxa3#
- 1...Qxa1
- 2.Qxa1#
- 1...Sxg4
- 2.Sc4#
- 1...cxb2
- 2.Qe1#
- 1...cxb5
- 2.Qxa8#
- 1...Bb7
- 2.Sxb7#
- 1...Qa4
- 2.Rxa4#
- 1...Sd1
- 2.Sc4#
- 1...Sf1
- 2.Sc4#
- 1...Sc2
- 2.Sc4#
- 1...Sg2
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sd5
- 2.Sc4#
- 1...Sf5
- 2.Sc4#
- 1...Sd6
- 2.Bc7#
- 1...Sf6
- 2.Bc7#
- 1...Sc7
- 2.Bxc7#
- 1...c2
- 2.Qe1#
- 1...g6
- 2.Ra7#
- 1...Qa3+
- 1.Qh1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- Q(a);N_SPINQ(a),OGATE,XR(A)::QAR(B),XQ(a)
- Q(a);CHECK,OGATE::R(A),XQ(a)
- Q(a);OGATE::R1(A),XQ(a)
- B(j);N_GUARD::S(J),XB(j)
- S(d);N_GUARD::S(C)
- S(d);N_GUARD::S(C),XS(d)
- S(d);N_GUARD,XP(E)::S(C)
- S(k);N_GUARD::B(I)
- S(k);N_GUARD::B(I),XS(k)
- P(c);OGATEB,XS(C)::QAB(B)
- P(c);OGATEB::QAB(B)
- P(i);OGATE::R(H)
- Tries
- Try
- B(I);
- Threat
- B(I),XP(c)
- Vars
- Q(a);CHECK,OGATE::R(A),XQ(a)
- S(d);N_GUARD::S(C)
- Refutation
- P(g);XB(F)
- Try
- B(I);
- Threat
- B(I)
- Vars
- Q(a);CHECK,OGATE::R(A),XQ(a)
- S(d);N_GUARD::S(C),XS(d)
- S(d);N_GUARD::S(C)
- Refutation
- P(g);XB(F)
- Try
- R(H);XP(i)
- Threat
- R(H)
- Vars
- Q(a);CHECK,OGATE::R(A),XQ(a)
- S(k);N_GUARD,XR(H)::B(I)
- B(j);N_GUARD::S(J),XB(j)
- S(k);N_GUARD::B(I),XS(k)
- Refutation
- B(h);XR(H)
- Try
- Q(B);XS(d)
- Threat
- DUALS(2)
- Vars
- Q(a);CHECK,OGATE::R(A),XQ(a)
- Refutation
- P(g);XB(F)
- Try
- Q(B);
- Vars
- Q(a);CHECK,OGATE::R(A),XQ(a)
- Q(a);N_SPINQ(a),OGATE,XR(A)::QAR(B),XQ(a)
- S(d);N_GUARD,XP(E)::S(C)
- P(c);OGATEB,XS(C)::QAB(B)
- B(j);N_GUARD::S(J),XB(j)
- Q(a);OGATE::R1(A),XQ(a)
- S(d);N_GUARD::S(C)
- S(d);N_GUARD::S(C),XS(d)
- S(k);N_GUARD::B(I)
- S(k);N_GUARD::B(I),XS(k)
- P(c);OGATEB::QAB(B)
- P(i);OGATE::R(H)
- Refutation
- P(g);XB(F)
- Try
- Q(B);
- Threat
- QAB(B),XP(c)
- Vars
- Q(a);CHECK,OGATE::R(A),XQ(a)
- S(d);N_GUARD::S(C)
- Refutation
- P(g);XB(F)
- Try
- Q(B);
- Vars
- Q(a);CHECK,OGATE::R(A),XQ(a)
- Q(a);N_SPINQ(a),OGATE,XR(A)::QAR(B),XQ(a)
- S(d);N_GUARD,XQ(B)::S(C)
- S(d);N_GUARD,XP(E)::S(C)
- B(j);N_GUARD::S(J),XB(j)
- Q(a);OGATE::R1(A),XQ(a)
- S(d);N_GUARD::S(C)
- S(d);N_GUARD::S(C),XS(d)
- S(k);N_GUARD::B(I)
- S(k);N_GUARD::B(I),XS(k)
- P(i);OGATE::R(H)
- Refutation
- P(g);XB(F)
- Try
- Q(B);P_PINP(c)
- Threat
- QAB(B),XP(c)
- Vars
- Q(a);CHECK,OGATE::R(A),XQ(a)
- S(d);N_GUARD::S(C)
- Refutation
- P(g);XB(F)
- Try
- Q(B);
- Vars
- Q(a);CHECK,OGATE::R(A),XQ(a)
- Q(a);N_SPINQ(a),OGATE,XR(A)::QAR(B),XQ(a)
- S(d);N_GUARD,XQ(B)::S(C)
- S(d);N_GUARD,XP(E)::S(C)
- P(c);OGATEB,XS(C)::QAB(B)
- B(j);N_GUARD::S(J),XB(j)
- Q(a);OGATE::R1(A),XQ(a)
- S(d);N_GUARD::S(C)
- S(d);N_GUARD::S(C),XS(d)
- S(k);N_GUARD::B(I)
- S(k);N_GUARD::B(I),XS(k)
- P(c);OGATEB::QAB(B)
- P(i);OGATE::R(H)
- Refutation
- P(g);XB(F)
- Try
- Actual
- Q(B);
- Vars
- Q(a);CHECK,OGATE::R(A),XQ(a)
- Q(a);N_SPINQ(a),OGATE,XR(A)::QAR(B),XQ(a)
- S(d);N_GUARD,XP(E)::S(C)
- P(c);OGATEB,XS(C)::QAB(B)
- P(g);OGATE,XB(F)::QAR(B),XB(j)
- B(j);N_GUARD::S(J),XB(j)
- Q(a);OGATE::R1(A),XQ(a)
- S(d);N_GUARD::S(C)
- S(d);N_GUARD::S(C),XS(d)
- S(k);N_GUARD::B(I)
- S(k);N_GUARD::B(I),XS(k)
- P(c);OGATEB::QAB(B)
- P(i);OGATE::R(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).