MESON Chess Problem Database
Problem Display
PID: 93217 (2R5/1bn2N2/3pp3/K2k4/1Q2pb2/1P2n3/3N1Bqr/2R5 w - - 0 1)
Lazdinits, Eriks
Skakbladet, 1935
#2
8 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qf1
- 2.Qxe4#
- 1...Qh3
- 2.Qxe4#
- 1...Qg1
- 2.Qxe4#
- 1...Qxf2
- 2.Qxe4#
- 1...Qg3
- 2.Qxe4#
- 1...Qg4
- 2.Qxe4#
- 1...Qg5
- 2.Qxe4#
- 1...Qg7
- 2.Qxe4#
- 1...Qg8
- 2.Qxe4#
- 1...Bg5
- 2.Qxd6#
- 1...Bh6
- 2.Qxd6#
- 1...Sd1
- 2.Qc4#
- 2.Qd4#
- 2.Qxb7#
- 1...Sf1
- 2.Qc4#
- 2.Qd4#
- 2.Qxb7#
- 1...Sc2
- 2.Qc4#
- 2.Qxb7#
- 1...Sc4+
- 2.Qxc4#
- 1...Sg4
- 2.Qc4#
- 2.Qd4#
- 2.Qxb7#
- 1...Sf5
- 2.Qc4#
- 2.Qxb7#
- 1...e5
- 2.Qxd6#
- 1...Qf1
- Tries
- 1.Sf3?
- threat
- 2.Qd2#
- 2.Qd4#
- 2.Qxb7#
- 1...Sc4+
- 2.Qxc4#
- 1...Qxf3
- 2.Qd2#
- 1...Qxf2
- 2.Qd4#
- 2.Qxb7#
- 1...Bxc8
- 2.Qd2#
- 2.Qd4#
- 1...Sc2
- 2.Qc4#
- 2.Qxb7#
- 1...e5
- 2.Qxd6#
- 1...Qf1
- 2.Qd4#
- 2.Qxb7#
- 1...Qg7
- 2.Qxb7#
- 1...Be5
- 2.Qxb7#
- 1...Ba6
- 2.Qd4#
- 1...Bc6
- 2.Qd2#
- 2.Qd4#
- 1...Ba8
- 2.Qd2#
- 2.Qd4#
- 1...Sd1
- 2.Qc4#
- 2.Qd4#
- 2.Qxb7#
- 1...Sf1
- 2.Qc4#
- 2.Qd4#
- 2.Qxb7#
- 1...Sg4
- 2.Qc4#
- 2.Qd4#
- 2.Qxb7#
- 1...Sf5
- 2.Qc4#
- 2.Qxb7#
- 1...Sb5
- 2.Qxb5#
- 1...exf3!
- threat
- 1.Bxe3?
- threat
- 2.Qc4#
- 2.Qd4#
- 2.Qxb7#
- 1...Bxe3
- 2.Qxd6#
- 2.Qc4#
- 1...Bxc8
- 2.Qc4#
- 2.Qd4#
- 1...e5
- 2.Qxd6#
- 2.Qc4#
- 1...Qf1
- 2.Qd4#
- 2.Qxe4#
- 2.Qxb7#
- 1...Qe2
- 2.Qd4#
- 2.Qxe4#
- 2.Qxb7#
- 1...Qg7
- 2.Qc4#
- 2.Qxe4#
- 2.Qxb7#
- 1...Be5
- 2.Qc4#
- 2.Qxb7#
- 1...Ba6
- 2.Qd4#
- 1...Bc6
- 2.Qc4#
- 2.Qd4#
- 1...Ba8
- 2.Qc4#
- 2.Qd4#
- 1...Sb5
- 2.Qc4#
- 2.Qxb5#
- 1...Qxd2!
- threat
- 1.Rd8?
- threat
- 2.Rc5#
- 2.Qc5#
- 1...Sc4+
- 2.Qxc4#
- 1...Sc2
- 2.Qc5#
- 2.Qc4#
- 2.Qxb7#
- 1...e5
- 2.Rxd6#
- 2.Qxd6#
- 1...Sa6!
- threat
- 1.Qb5+?
- 1...Kd4
- 2.Qc4#
- 1...Sxb5!
- 1...Kd4
- 1.Sf3?
- Keys
- 1.Sc4!
- threat
- 2.Sb6#
- 1...Sxc4+
- 2.Qxc4#
- 1...Kd4
- 2.Rd1#
- 1...Kc6
- 2.Qb5#
- 1...e5
- 2.Qxd6#
- 1...Sc2
- 2.Qxb7#
- 1...Sa8
- 2.Qd2#
- threat
- 1.Sc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 11
- Sets
- Q(a);N_GUARD::QAB1(E),XP(d)
- Q(a);N_GUARD,XB(C)::QAB1(E),XP(d)
- B(e);N_GUARD::QAR1(E),XP(g)
- S(c);CHECK,N_GUARD::QAB1(E),XS(c)
- P(h);S_CUTB(e)::QAR1(E),XP(g)
- Tries
- Try
- S(B);
- Threat
- DUALS(3)
- Vars
- S(c);CHECK,N_GUARD::QAB1(E),XS(c)
- Q(a);XS(B)::QAR(E)
- P(h);S_CUTB(e)::QAR1(E),XP(g)
- Q(a);::QAB(E),XB(i)
- B(e);::QAB(E),XB(i)
- B(i);::QAR1(E)
- S(j);N_GUARD::QAR2(E),XS(j)
- Refutation
- P(d);XS(B)
- Try
- B(C);XS(c)
- Threat
- DUALS(3)
- Vars
- B(i);::QAR1(E)
- Refutation
- Q(a);P_PINQ(E),XS(B)
- Try
- R(H);P_PINP(g)
- Threat
- DUALS(2)
- Vars
- S(c);CHECK,N_GUARD::QAB1(E),XS(c)
- Refutation
- S(j);
- Try
- Q(E);CHECK
- Vars
- K(f);P-FLIGHT,P_SPINS(c)::QAR1(E)
- Refutation
- S(j);XQ(E)
- Try
- Actual
- S(B);
- Threat
- S(B)
- Vars
- S(c);CHECK,OGATE,XS(B)::QAB1(E),XS(c)
- K(f);P-FLIGHT,P_SPINS(c)::R(A)
- K(f);P_SPINS(j),S_FLIGHT::QAB1(E)
- P(h);S_CUTB(e)::QAR1(E),XP(g)
- S(c);::QAB(E),XB(i)
- S(j);::QAR(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).