MESON Chess Problem Database
Problem Display
PID: 206119 (3rr3/8/1p2R1pb/Bb2p1np/7Q/3B2Pn/1K6/3k3N w - - 0 1)
Tompuri, Ismo
Tehtavaniekka, 2019
#2
7 + 11
SOLUTION
- SOUND
- Sets
- 1...Ba4
- 2.Qxa4#
- 1...Ba6
- 2.Qa4#
- 1...Sg1
- 2.Sf2#
- 1...Sf2
- 2.Sxf2#
- 1...Sf4
- 2.Sf2#
- 1...Ba4
- Tries
- 1.Be2+?
- 1...Bxe2
- 2.Qa4#
- 1...Kxe2!
- 1...Bxe2
- 1.Qb4?
- threat
- 2.Qe1#
- 2.Qd2#
- 2.Qb3#
- 1...Rxd3
- 2.Qe1#
- 1...Bxd3
- 2.Qe1#
- 2.Qd2#
- 1...Sxe6
- 2.Qe1#
- 2.Qb3#
- 1...Rc8
- 2.Qe1#
- 2.Qd2#
- 1...Ba4
- 2.Qe1#
- 2.Qd2#
- 2.Qxa4#
- 1...Bc4
- 2.Qe1#
- 2.Qd2#
- 1...Sf3
- 2.Qb3#
- 1...Se4
- 2.Qe1#
- 2.Qb3#
- 1...Sf7
- 2.Qe1#
- 2.Qb3#
- 1...Sh7
- 2.Qe1#
- 2.Qb3#
- 1...bxa5!
- threat
- 1.Qc4?
- threat
- 2.Bc2#
- 2.Be2#
- 2.Qb3#
- 2.Qc1#
- 2.Qc2#
- 1...Rxd3
- 2.Qc2#
- 1...Sxe6
- 2.Bc2#
- 2.Be2#
- 2.Qb3#
- 2.Qc2#
- 1...bxa5
- 2.Qc1#
- 1...Rc8
- 2.Bc2#
- 2.Be2#
- 1...Ba4
- 2.Be2#
- 2.Qc1#
- 2.Qxa4#
- 1...Sg1
- 2.Sf2#
- 2.Bc2#
- 2.Qb3#
- 2.Qc1#
- 2.Qc2#
- 1...Sf4
- 2.Sf2#
- 2.Bc2#
- 2.Qb3#
- 2.Qc1#
- 2.Qc2#
- 1...Sf3
- 2.Bc2#
- 2.Be2#
- 2.Qb3#
- 2.Qc2#
- 1...Se4
- 2.Bc2#
- 2.Be2#
- 2.Qb3#
- 2.Qc2#
- 1...Sf7
- 2.Bc2#
- 2.Be2#
- 2.Qb3#
- 2.Qc2#
- 1...Sh7
- 2.Bc2#
- 2.Be2#
- 2.Qb3#
- 2.Qc2#
- 1...Bxc4!
- threat
- 1.Qe4?
- threat
- 2.Bc2#
- 2.Qe1#
- 2.Qe2#
- 1...Rxd3
- 2.Qe1#
- 1...Bxd3
- 2.Qe1#
- 1...bxa5
- 2.Qe2#
- 1...Rc8
- 2.Qe1#
- 2.Qe2#
- 1...Ba4
- 2.Be2#
- 2.Qe1#
- 2.Qe2#
- 2.Qxa4#
- 1...Sg1
- 2.Sf2#
- 2.Bc2#
- 2.Qe1#
- 1...Sf4
- 2.Sf2#
- 2.Bc2#
- 2.Qe1#
- 1...Sf3
- 2.Bc2#
- 2.Qxf3#
- 2.Qe2#
- 1...Sxe4!
- threat
- 1.Qg4+?
- 1...Sf3
- 2.Qxf3#
- 1...hxg4!
- 1...Sf3
- 1.Qxh5+?
- 1...Sf3
- 2.Qxf3#
- 1...gxh5!
- 1...Sf3
- 1.Be2+?
- Keys
- 1.Qf4!
- threat
- 2.Qc1#
- 2.Qd2#
- 2.Qf1#
- 1...Rxd3
- 2.Qf1#
- 1...Bxd3
- 2.Qd2#
- 1...Sxf4
- 2.Sf2#
- 1...Sxe6
- 2.Qf1#
- 2.Qf3#
- 1...exf4
- 2.Bc2#
- 1...bxa5
- 2.Qc1#
- 1...Rc8
- 2.Qd2#
- 2.Qf1#
- 1...Rf8
- 2.Qc1#
- 2.Qd2#
- 1...Sf2
- 2.Sxf2#
- 2.Qc1#
- 2.Qd2#
- 1...Sf3
- 2.Qxf3#
- 1...Se4
- 2.Qf1#
- 2.Qf3#
- 1...Sf7
- 2.Qf1#
- 2.Qf3#
- 1...Sh7
- 2.Qf1#
- 2.Qf3#
- threat
- 1.Qf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 4
- Sets
- B(c);N_GUARD::QAB(E),XB(c)
- B(c);N_GUARD::QAB(E)
- S(b);N_GUARD::S(A)
- S(b);N_GUARD::S(A),XS(b)
- Tries
- Try
- B(C);CHECK
- Vars
- B(c);SBLOCK,XB(C)::QAB(E)
- Refutation
- K(a);P_SPINP(d),S_FLIGHT,XB(C)
- Try
- Q(E);
- Threat
- DUALS(3)
- Vars
- R(j);XB(C)::QAR1(E)
- S(e);::QAB(E)
- Refutation
- P(g);XB(F)
- Try
- Q(E);
- Threat
- DUALS(5)
- Vars
- R(j);XB(C)::QAB1(E)
- P(g);XB(F)::QAR1(E)
- Refutation
- B(c);XQ(E)
- Try
- Q(E);
- Threat
- DUALS(3)
- Vars
- R(j);XB(C)::QAR1(E)
- B(c);XB(C)::QAR1(E)
- P(g);XB(F)::QAB1(E)
- Refutation
- S(e);XQ(E)
- Try
- Q(E);CHECK
- Vars
- S(e);N_GUARD,P_SPINS(e)::QAB(E),XS(e)
- Refutation
- P(f);XQ(E)
- Try
- Q(E);CHECK,XP(f)
- Vars
- S(e);N_GUARD,P_SPINS(e)::QAB(E),XS(e)
- Refutation
- P(h);XQ(E)
- Try
- Actual
- Q(E);
- Threat
- DUALS(3)
- Vars
- R(j);XB(C)::QAR2(E)
- B(c);XB(C)::QAR1(E)
- S(b);N_GUARD,XQ(E)::S(A)
- P(d);XQ(E)::B(C)
- P(g);XB(F)::QAR1(E)
- S(e);N_GUARD::QAB(E),XS(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).