MESON Chess Problem Database
Problem Display
PID: 268170 (8/6B1/2B4p/2pp3P/1Pkq1QPR/P5P1/2Pp1P2/1N1K4 w - - 0 1)
Ceriani, Luigi
De Standaard, 1927
(First published on Tue Oct 11 1927)
#2
13 + 6
| 15601 | Albrecht-Leiss-Degener Collection | 2023 |
SOLUTION
- SOUND
- Sets
- 1...Qe4
- 2.Sxd2#
- 1...cxb4
- 2.Qxd4#
- 1...Qe4
- Tries
- 1.Sc3?
- 1...Qxf4
- 2.Bb5#
- 2.Bxd5#
- 1...cxb4
- 2.Qxd4#
- 1...Qe4
- 2.Bb5#
- 2.Bxd5#
- 1...Kxc3!
- 1...Qxf4
- 1.Ba4?
- 1...cxb4
- 2.Qxd4#
- 1...Qe4
- 2.Sxd2#
- 1...Qxf4!
- 1...cxb4
- 1.Bd7?
- 1...cxb4
- 2.Qxd4#
- 1...Qe4
- 2.Sxd2#
- 1...Qxf4!
- 1...cxb4
- 1.Be8?
- 1...cxb4
- 2.Qxd4#
- 1...Qe4
- 2.Sxd2#
- 1...Qxf4!
- 1...cxb4
- 1.Be5?
- 1...cxb4
- 2.Qxd4#
- 1...Qe4
- 2.Sxd2#
- 1...Qxf4!
- 1...cxb4
- 1.Bf6?
- 1...cxb4
- 2.Qxd4#
- 1...Qe4
- 2.Sxd2#
- 1...Qxf4!
- 1...cxb4
- 1.Bh8?
- 1...cxb4
- 2.Qxd4#
- 1...Qe4
- 2.Sxd2#
- 1...Qxf4!
- 1...cxb4
- 1.Rh1?
- 1...cxb4
- 2.Qxd4#
- 1...Qe4
- 2.Sxd2#
- 1...Qxf4!
- 1...cxb4
- 1.Rh2?
- 1...cxb4
- 2.Qxd4#
- 1...Qe4
- 2.Sxd2#
- 1...Qxf4!
- 1...cxb4
- 1.Rh3?
- 1...cxb4
- 2.Qxd4#
- 1...Qe4
- 2.Sxd2#
- 1...Qxf4!
- 1...cxb4
- 1.Qe3?
- threat
- 2.Qb3#
- 1...Qxg4+
- 2.Qe2#
- 1...Qxg7
- 2.Sxd2#
- 2.Qxc5#
- 2.Qd3#
- 1...cxb4
- 2.Qxd4#
- 1...Qb2
- 2.Sxd2#
- 2.Qxc5#
- 2.Qe2#
- 2.Qd3#
- 1...Qc3
- 2.Qxc5#
- 2.Qxc3#
- 1...Qe5
- 2.Sxd2#
- 2.Qxc5#
- 2.Qd3#
- 1...Qf6
- 2.Sxd2#
- 2.Qxc5#
- 2.Qd3#
- 1...Qd3
- 2.Qxc5#
- 2.Qxd3#
- 1...Qxe3!
- threat
- 1.Qd6?
- 1...Qxf2
- 2.Qxd5#
- 1...Qxg7
- 2.Qxc5#
- 2.Qxd5#
- 1...cxb4
- 2.Qxb4#
- 1...Qe5
- 2.Qxc5#
- 1...Qf6
- 2.Qxc5#
- 2.Qxd5#
- 1...Qa1
- 2.Qxc5#
- 2.Qxd5#
- 1...Qb2
- 2.Sxd2#
- 2.Qxc5#
- 2.Qxd5#
- 1...Qc3
- 2.Qxc5#
- 2.Qxd5#
- 1...Qe3
- 2.Qxd5#
- 1...Qd3
- 2.Qxc5#
- 1...Qe4
- 2.Sxd2#
- 2.Qxc5#
- 1...Qf4
- 2.Qxc5#
- 2.Qxd5#
- 1...Qxg4+!
- 1...Qxf2
- 1.Qf3?
- threat
- 2.Qb3#
- 1...Qxg7
- 2.Qxd5#
- 2.Qd3#
- 1...Qxg4
- 2.Sxd2#
- 2.Qe2#
- 1...Qe5
- 2.Qd3#
- 1...Qf6
- 2.Qxd5#
- 2.Qd3#
- 1...Qb2
- 2.Sxd2#
- 2.Qe2#
- 2.Qxd5#
- 2.Qd3#
- 1...Qc3
- 2.Qxd5#
- 2.Qxc3#
- 1...Qe3
- 2.Qxd5#
- 1...Qd3
- 2.Qxd3#
- 1...cxb4!
- threat
- 1.Qe4?
- 1...Qxe4
- 2.Sxd2#
- 1...cxb4
- 2.Qxd4#
- 1...dxe4!
- 1...Qxe4
- 1.f3?
- 1...cxb4
- 2.Qxd4#
- 1...Qe4
- 2.Sxd2#
- 1...Qxf4!
- 1...cxb4
- 1.b5?
- 1...Qe4
- 2.Sxd2#
- 1...Qxf4!
- 1...Qe4
- 1.g5?
- 1...Qxf4
- 2.Sxd2#
- 1...cxb4
- 2.Qxd4#
- 1...Qe4
- 2.Sxd2#
- 1...hxg5!
- 1...Qxf4
- 1.Sc3?
- Keys
- 1.Qxd2!
- 1...Qxd2+
- 2.Sxd2#
- 1...Qxg4+
- 2.Qe2#
- 1...Qxf2
- 2.Qc3#
- 2.Qd3#
- 2.Qxd5#
- 1...Qxg7
- 2.Qd3#
- 2.Qxd5#
- 1...cxb4
- 2.Qxd4#
- 1...Qa1
- 2.Qe2#
- 2.Qd3#
- 2.Qxd5#
- 1...Qb2
- 2.Qe2#
- 2.Qd3#
- 2.Qxd5#
- 1...Qc3
- 2.Qxc3#
- 2.Qxd5#
- 1...Qe3
- 2.Qxd5#
- 1...Qe5
- 2.Qd3#
- 1...Qf6
- 2.Qd3#
- 2.Qxd5#
- 1...Qd3
- 2.Qxd3#
- 1...Qe4
- 2.Qc3#
- 1...Qf4
- 2.Qc3#
- 2.Qe2#
- 2.Qd3#
- 2.Qxd5#
- 1...Qxd2+
- 1.Qxd2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- Q(c);::S(A),XP(a)
- P(d);N_GUARD,XP(G)::QAR1(H),XQ(c)
- Tries
- Try
- S(A);
- Vars
- P(d);N_GUARD,XP(G)::QAR1(H),XQ(c)
- Refutation
- K(b);P-FLIGHT,XS(A)
- Try
- B(L);
- Vars
- P(d);N_GUARD,XP(G)::QAR1(H),XQ(c)
- Q(c);::S(A),XP(a)
- Refutation
- Q(c);N_SPINQ(c),XQ(H)
- Try
- B(L);
- Vars
- P(d);N_GUARD,XP(G)::QAR1(H),XQ(c)
- Q(c);::S(A),XP(a)
- Refutation
- Q(c);N_SPINQ(c),XQ(H)
- Try
- B(L);
- Vars
- P(d);N_GUARD,XP(G)::QAR1(H),XQ(c)
- Q(c);::S(A),XP(a)
- Refutation
- Q(c);N_SPINQ(c),XQ(H)
- Try
- B(M);
- Vars
- P(d);N_GUARD,XP(G)::QAR1(H),XQ(c)
- Q(c);::S(A),XP(a)
- Refutation
- Q(c);N_SPINQ(c),XQ(H)
- Try
- B(M);
- Vars
- P(d);N_GUARD,XP(G)::QAR1(H),XQ(c)
- Q(c);::S(A),XP(a)
- Refutation
- Q(c);N_SPINQ(c),XQ(H)
- Try
- B(M);
- Vars
- P(d);N_GUARD,XP(G)::QAR1(H),XQ(c)
- Q(c);::S(A),XP(a)
- Refutation
- Q(c);N_SPINQ(c),XQ(H)
- Try
- R(J);
- Vars
- P(d);N_GUARD,XP(G)::QAR1(H),XQ(c)
- Q(c);::S(A),XP(a)
- Refutation
- Q(c);N_SPINQ(c),XQ(H)
- Try
- R(J);
- Vars
- P(d);N_GUARD,XP(G)::QAR1(H),XQ(c)
- Q(c);::S(A),XP(a)
- Refutation
- Q(c);N_SPINQ(c),XQ(H)
- Try
- R(J);
- Vars
- P(d);N_GUARD,XP(G)::QAR1(H),XQ(c)
- Q(c);::S(A),XP(a)
- Refutation
- Q(c);N_SPINQ(c),XQ(H)
- Try
- Q(H);N_PINQ(c)
- Threat
- QAB1(H)
- Vars
- Q(c);CHECK,N_GUARD,P_SPINQ(c),XP(I)::QAB(H)
- P(d);N_GUARD,XP(G)::QAR1(H),XQ(c)
- Refutation
- Q(c);XQ(H)
- Try
- Q(H);N_PINQ(c)
- Vars
- Q(c);N_GUARD,XP(D)::QAB1(H),XP(e)
- P(d);OGATE,XP(G)::QAR1(H),XP(d)
- Q(c);N_GUARD::QAR1(H),XP(d)
- Q(c);N_GUARD::QAB1(H),XP(e)
- Refutation
- Q(c);CHECK,P_SPINQ(c),XP(I)
- Try
- Q(H);N_PINQ(c)
- Threat
- QAB1(H)
- Vars
- Q(c);N_GUARD::QAB1(H)
- Q(c);N_GUARD::QAB1(H),XP(e)
- Q(c);N_GUARD::QAB1(H),XQ(c)
- Refutation
- P(d);XP(G)
- Try
- Q(H);
- Vars
- Q(c);N_SPINQ(c),XQ(H)::S(A),XP(a)
- P(d);N_GUARD,XP(G)::QAR1(H),XQ(c)
- Refutation
- P(e);N_SPINQ(c),XQ(H)
- Try
- P(D);
- Vars
- P(d);N_GUARD,XP(G)::QAR1(H),XQ(c)
- Q(c);::S(A),XP(a)
- Refutation
- Q(c);N_SPINQ(c),XQ(H)
- Try
- P(G);
- Vars
- Q(c);::S(A),XP(a)
- Refutation
- Q(c);N_SPINQ(c),XQ(H)
- Try
- P(I);
- Vars
- Q(c);XQ(H)::S(A),XP(a)
- P(d);N_GUARD,XP(G)::QAR1(H),XQ(c)
- Q(c);::S(A),XP(a)
- Refutation
- P(f);XP(I)
- Try
- Actual
- Q(H);N_PINQ(c),P_SPINQ(H),XP(a)
- Vars
- Q(c);CHECK,XQ(H)::S(A),XQ(c)
- Q(c);CHECK,N_PINQ(H),P_SPINQ(c),XP(I)::QAB(H)
- P(d);N_GUARD,XP(G)::QAR1(H),XQ(c)
- Q(c);N_PINQ(H)::QAB1(H),XP(e)
- Q(c);N_GUARD,N_PINQ(H)::QAB1(H)
- Q(c);N_GUARD::QAB1(H),XQ(c)
- Q(c);N_PINQ(H)::QAR1(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).