MESON Chess Problem Database
Problem Display
PID: 96537 (4N2K/qp2PB1b/8/2n1k2p/R3N3/Qpp1B1n1/4pR1b/8 w - - 0 1)
Mangalis, Laimons
Problem (Zagreb), 1953
#2
9 + 11
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qb8
- 2.Qxc5#
- 1...Qa6
- 2.Qxc5#
- 1...Qa8
- 2.Qxc5#
- 1...Bxe4
- 2.Bd4#
- 1...Bf5
- 2.Bf4#
- 1...Sgxe4
- 2.Bd4#
- 1...Sd3
- 2.Qd6#
- 1...Sa6
- 2.Qd6#
- 1...Se6
- 2.Qd6#
- 1...Sd7
- 2.Qd6#
- 1...b2
- 2.Qxc3#
- 1...c2
- 2.Qb2#
- 1...Qb8
- Tries
- 1.Sxg3?
- threat
- 2.Bd4#
- 2.Bf4#
- 1...Qxa4
- 2.Qxc5#
- 1...Sxa4
- 2.Qd6#
- 1...Se6
- 2.Qd6#
- 1...Sd3
- 2.Qd6#
- 1...Se4
- 2.Bf4#
- 1...Sa6
- 2.Bf4#
- 2.Qd6#
- 1...Sd7
- 2.Bf4#
- 2.Qd6#
- 1...Bxg3!
- threat
- 1.Sxc5?
- threat
- 2.Sd7#
- 2.Bd4#
- 1...Qxc5
- 2.Qxc5#
- 1...Bf5
- 2.Bd4#
- 2.Bf4#
- 1...Sf5
- 2.Sd3#
- 2.Sd7#
- 2.Re4#
- 1...b5
- 2.Bd4#
- 1...b6
- 2.Bd4#
- 1...Qxa4!
- threat
- 1.Sg5?
- threat
- 2.Bd4#
- 1...Qxa4
- 2.Qxc5#
- 1...Sxa4
- 2.Qd6#
- 1...Se6
- 2.Qd6#
- 1...Sf5
- 2.Sf3#
- 1...Sd3
- 2.Qd6#
- 1...Sa6
- 2.Qd6#
- 1...Sd7
- 2.Qd6#
- 1...Sce4!
- threat
- 1.S4f6?
- threat
- 2.Bd4#
- 1...Qxa4
- 2.Qxc5#
- 1...Sxa4
- 2.Qd6#
- 1...Sce4
- 2.Sd7#
- 1...Sd3
- 2.Sd7#
- 2.Qd6#
- 1...Sa6
- 2.Sd7#
- 2.Qd6#
- 1...Se6
- 2.Qd6#
- 1...Sd7
- 2.Sxd7#
- 2.Qd6#
- 1...Sf5!
- threat
- 1.Qxb3?
- threat
- 2.Qd5#
- 2.Qxc3#
- 1...Qxa4
- 2.Qd5#
- 1...Bxe4
- 2.Bd4#
- 2.Qxc3#
- 1...Sgxe4
- 2.Bd4#
- 2.Qd5#
- 1...Sxa4
- 2.Qd5#
- 2.Qe6#
- 1...Scxe4
- 2.Qd5#
- 2.Qe6#
- 1...e1Q
- 2.Qd5#
- 1...e1B
- 2.Qd5#
- 1...Sf5
- 2.Qd5#
- 1...Qa5
- 2.Qd5#
- 1...Sd3
- 2.Qd5#
- 2.Qe6#
- 1...Sa6
- 2.Qd5#
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...Sd7
- 2.Qd5#
- 2.Qe6#
- 1...c2
- 2.Qd5#
- 2.Qb2#
- 2.Qc3#
- 1...Sxb3!
- threat
- 1.Sxg3?
- Keys
- 1.Sd2!
- threat
- 2.Bd4#
- 1...Qxa4
- 2.Qxc5#
- 1...Sxa4
- 2.Qd6#
- 1...cxd2
- 2.Qb2#
- 1...Se6
- 2.Qd6#
- 1...Sf5
- 2.Sf3#
- 1...Sd3
- 2.Qd6#
- 1...Sce4
- 2.Sc4#
- 1...Sa6
- 2.Qd6#
- 1...Sd7
- 2.Qd6#
- threat
- 1.Sd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 8
- Sets
- Q(i);N_GUARD,P_PINS(H)::QAR2(B),XS(f)
- Q(i);N_GUARD::QAR2(B),XS(f)
- B(k);SBLOCK,XS(E)::B(C)
- B(k);SBLOCK::B(C)
- S(e);SBLOCK,XS(E)::B(C)
- S(f);OGATE::QAB1(B)
- P(c);OGATE::QAB(B),XP(d)
- P(d);OGATEB::QAB(B)
- Tries
- Try
- S(E);XS(e)
- Threat
- DUALS(2)
- Vars
- Q(i);N_GUARD,XR(D)::QAR2(B),XS(f)
- S(f);OGATE,XR(D)::QAB1(B)
- S(f);OGATE::QAB1(B)
- S(f);::B(C)
- Refutation
- B(b);XS(E)
- Try
- S(E);XS(f)
- Threat
- DUALS(2)
- Vars
- Q(i);OGATE,XS(E)::QAR2(B),XQ(i)
- P(j);::B(C)
- Refutation
- Q(i);XR(D)
- Try
- S(E);
- Threat
- B(C)
- Vars
- Q(i);N_GUARD,XR(D)::QAR2(B),XS(f)
- S(f);OGATE,XR(D)::QAB1(B)
- S(f);OGATE::QAB1(B)
- S(e);SBLOCK::S(E)
- Refutation
- S(f);
- Try
- S(E);
- Threat
- B(C)
- Vars
- Q(i);N_GUARD,XR(D)::QAR2(B),XS(f)
- S(f);OGATE,XR(D)::QAB1(B)
- S(f);N_GUARD::S(E)
- S(f);OGATE::QAB1(B)
- Refutation
- S(e);
- Try
- Q(B);XP(c)
- Threat
- DUALS(2)
- Vars
- Q(i);XR(D)::QAR1(B)
- P(a);::QAR1(B)
- S(e);::QAR1(B)
- Q(i);::QAR1(B)
- S(f);N_GUARD::QAR1(B),XS(f)
- Refutation
- S(f);XQ(B)
- Try
- Actual
- S(E);
- Threat
- B(C)
- Vars
- Q(i);N_GUARD,XR(D)::QAR2(B),XS(f)
- S(f);OGATE,XR(D)::QAB1(B)
- P(d);OGATEB,XS(E)::QAB(B)
- S(f);OGATE::QAB1(B)
- S(e);SBLOCK::S(E)
- S(f);SBLOCK::S(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).