MESON Chess Problem Database
Problem Display
PID: 237463 (3N2K1/2R1R3/1n3p2/5p2/1P1k1P2/rp1n4/1P1bp3/2NQ1b1B w - - 0 1)
Labai, Zoltan
2nd Prize, Pravda (Bratislava), 2011
(First published on Thu Sep 8 2011)
#2
10 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Sxb3#
- 1...Ra2
- 2.Sxb3#
- 1...Ra4
- 2.Sxb3#
- 1...Ra5
- 2.Sxb3#
- 1...Ra6
- 2.Sxb3#
- 1...Ra7
- 2.Sxb3#
- 1...Ra8
- 2.Sxb3#
- 1...Bh3
- 2.Sxe2#
- 1...Be1
- 2.Qxd3#
- 1...Bc3
- 2.Qxd3#
- 2.bxc3#
- 1...Be3
- 2.Se6#
- 2.Qxd3#
- 1...Bxb4
- 2.Qxd3#
- 1...Bxf4
- 2.Qxd3#
- 1...Sc4
- 2.Sc6#
- 1...Ra1
- Tries
- 1.Rc4+?
- 1...Sxc4
- 2.Sc6#
- 1...Kxc4!
- 1...Sxc4
- 1.Qc2?
- threat
- 2.Sc6#
- 2.Qxd3#
- 1...Bxc1
- 2.Sc6#
- 2.Qc3#
- 1...Sxc1
- 2.Sc6#
- 1...Sxb2
- 2.Sc6#
- 2.Qc5#
- 1...Sxb4
- 2.Qc5#
- 1...Sxf4
- 2.Sc6#
- 2.Qc5#
- 1...Bg2
- 2.Qxd3#
- 1...Se5
- 2.Qc5#
- 1...e1Q
- 2.Sc6#
- 1...e1S
- 2.Sc6#
- 1...e1B
- 2.Sc6#
- 1...e1R
- 2.Sc6#
- 1...Ra8
- 2.Sxb3#
- 2.Qxd3#
- 1...Bc3
- 2.Qxd3#
- 2.Qxc3#
- 2.bxc3#
- 1...Se1
- 2.Sc6#
- 2.Qc5#
- 1...Sf2
- 2.Sc6#
- 2.Qc5#
- 1...Sc5
- 2.Sc6#
- 2.Qxc5#
- 1...bxc2!
- threat
- 1.Qxb3?
- threat
- 2.Sc6#
- 1...Rxb3
- 2.Sxb3#
- 1...Sxb4
- 2.Se6#
- 1...Ra8
- 2.Qxd3#
- 1...Bg2
- 2.Sxe2#
- 1...Se5
- 2.Se6#
- 1...Bxb4!
- threat
- 1.Qxd2?
- threat
- 2.Se6#
- 2.Qc3#
- 2.Qe3#
- 2.Qxd3#
- 1...Bg2
- 2.Qxd3#
- 1...e1S
- 2.Se6#
- 2.Qc3#
- 2.Qe3#
- 1...e1B
- 2.Se6#
- 2.Qe3#
- 1...e1R
- 2.Qc3#
- 1...Sd5
- 2.Se6#
- 2.Qxd3#
- 1...Ra8
- 2.Sxb3#
- 2.Qc3#
- 2.Qe3#
- 2.Qxd3#
- 1...Sa4
- 2.Se6#
- 2.Red7#
- 2.Qe3#
- 2.Qxd3#
- 1...Sc4
- 2.Sc6#
- 2.Se6#
- 2.Qc3#
- 2.Qxd3#
- 1...e1Q!
- threat
- 1.Rc4+?
- Keys
- 1.Qxe2!
- threat
- 2.Se6#
- 1...Bxe2
- 2.Sxe2#
- 1...Sxf4
- 2.Sc6#
- 1...Bg2
- 2.Qxd3#
- 1...Ra8
- 2.Sxb3#
- 1...Sc5
- 2.Sc6#
- threat
- 1.Qxe2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 11
- Sets
- R(d);N_GUARD::S(A),XP(e)
- R(d);N_GUARD,P_PINS(I)::S(A),XP(e)
- B(a);N_GUARD::S(A),XP(c)
- B(b);OGATE,P_SPINS(f)::QAR1(B),XS(f)
- B(b);OGATE,P_SPINS(f),XP(E)::QAR1(B),XS(f)
- B(b);OGATE,P_SPINS(f),XP(F)::QAR1(B),XS(f)
- S(i);SBLOCK::S(I)
- Tries
- Try
- R(G);CHECK
- Vars
- S(i);SBLOCK,XR(G)::S(I)
- Refutation
- K(g);P-FLIGHT,XR(G)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- S(f);XS(A)::S(I)
- S(f);N_GUARD,XP(E)::QAB1(B)
- B(a);::QAR1(B),XS(f)
- S(f);N_GUARD::QAB1(B)
- P(c);::S(I)
- Refutation
- P(e);XQ(B)
- Try
- Q(B);XP(e)
- Threat
- S(I)
- Vars
- R(d);XQ(B)::S(A),XR(d)
- S(f);XP(E)::S(I)
- R(d);N_GUARD,P_PINS(I)::QAR1(B),XS(f)
- B(a);N_GUARD::S(A),XP(c)
- S(f);::S(I)
- Refutation
- B(b);XP(E)
- Try
- Q(B);P_PINS(f),XB(b)
- Threat
- DUALS(4)
- Vars
- B(a);::QAR1(B),XS(f)
- P(c);::QAB1(B)
- Refutation
- P(c);
- Try
- Actual
- Q(B);XP(c)
- Threat
- S(I)
- Vars
- B(a);XQ(B)::S(A),XB(a)
- S(f);XP(F)::S(I)
- B(a);N_GUARD::QAR1(B),XS(f)
- R(d);N_GUARD,P_PINS(I)::S(A),XP(e)
- S(f);::S(I)
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).