MESON Chess Problem Database
Problem Display
PID: 62537 (r2R1R2/B2pnbN1/1q6/1N2p3/1pB1k2n/4P3/3P4/1K3Q2 w - - 0 1)
Bourd, Evgeny
Problemesis, 2003
#2
10 + 9
SOLUTION
- SOUND
- Sets
- 1...Qxe3
- 2.Sd6#
- 1...Qa5
- 2.Sd6#
- 2.d3#
- 1...Qxa7
- 2.Sd6#
- 1...Qc7
- 2.d3#
- 1...Qxd8
- 2.Sd6#
- 2.d3#
- 1...Qxb5
- 2.d3#
- 1...Qa6
- 2.d3#
- 1...Qc6
- 2.d3#
- 1...Qd6
- 2.Sxd6#
- 1...Qe6
- 2.d3#
- 1...Qf6
- 2.d3#
- 1...Qg6
- 2.d3#
- 1...Qh6
- 2.d3#
- 1...Qb7
- 2.Sd6#
- 2.d3#
- 1...Qb8
- 2.d3#
- 1...Bd5
- 2.Bd3#
- 2.Qd3#
- 1...Bh5
- 2.Qd3#
- 1...Be6
- 2.Qd3#
- 1...Bg6
- 2.Qd3#
- 1...Be8
- 2.Qd3#
- 1...Bg8
- 2.Qd3#
- 1...Sg2
- 2.Qxg2#
- 1...Sf3
- 2.Qd3#
- 1...Shf5
- 2.Qg2#
- 2.Qh1#
- 1...Shg6
- 2.Qg2#
- 2.Qh1#
- 1...Sd5
- 2.Bd3#
- 1...Sc6
- 2.Sd6#
- 1...b3
- 2.Sc3#
- 1...d5
- 2.Bd3#
- 1...Qxe3
- Tries
- 1.Bxb6?
- threat
- 2.Sd6#
- 2.d3#
- 1...Bxc4
- 2.Qxc4#
- 1...Ra3
- 2.Sd6#
- 1...Shf5
- 2.Qg2#
- 2.Qh1#
- 2.d3#
- 1...Sef5
- 2.d3#
- 1...Sc8
- 2.d3#
- 1...d6
- 2.Sxd6#
- 2.d3#
- 1...Ra1+!
- threat
- 1.Qe2?
- threat
- 2.Qg4#
- 2.d3#
- 1...Qxe3
- 2.Qxe3#
- 1...Qd4
- 2.Qg4#
- 1...Qd6
- 2.Sxd6#
- 2.Qg4#
- 1...Qe6
- 2.d3#
- 1...Qf6
- 2.d3#
- 1...Qg6
- 2.d3#
- 1...Qh6
- 2.d3#
- 1...Bh5
- 2.Qd3#
- 2.d3#
- 1...Be6
- 2.Qd3#
- 2.d3#
- 1...Sg2
- 2.Qxg2#
- 2.d3#
- 1...Sf3
- 2.Qd3#
- 2.d3#
- 1...Shg6
- 2.Qg2#
- 2.d3#
- 1...Sd5
- 2.Bd3#
- 2.d3#
- 1...Seg6
- 2.d3#
- 1...Bxc4!
- threat
- 1.Qg2+?
- 1...Sf3
- 2.Qg4#
- 1...Sxg2!
- 1...Sf3
- 1.Qh3?
- threat
- 2.Qg4#
- 2.d3#
- 1...Qxe3
- 2.Qxe3#
- 1...Qd4
- 2.Qg4#
- 1...Qd6
- 2.Sxd6#
- 2.Qg4#
- 1...Qe6
- 2.d3#
- 1...Qf6
- 2.d3#
- 1...Qg6
- 2.d3#
- 1...Qh6
- 2.d3#
- 1...Bh5
- 2.d3#
- 1...Be6
- 2.d3#
- 1...Sg2
- 2.Qxg2#
- 2.d3#
- 1...Sf3
- 2.Qg4#
- 1...Shg6
- 2.Qg2#
- 2.Qh1#
- 2.d3#
- 1...Sd5
- 2.d3#
- 1...Seg6
- 2.d3#
- 1...Bxc4!
- threat
- 1.Qh1+?
- 1...Sg2
- 2.Qxg2#
- 1...Sf3!
- 1...Sg2
- 1.Bxb6?
- Keys
- 1.Se6!
- threat
- 2.Sg5#
- 1...Qxe3
- 2.Sd6#
- 1...Qxe6
- 2.d3#
- 1...Bxe6
- 2.Qd3#
- 1...dxe6
- 2.Bd3#
- 1...Sf3
- 2.Qd3#
- threat
- 1.Se6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 19
- Sets
- Q(e);N_GUARD,XP(D)::S(F)
- Q(e);N_GUARD,XB(G)::S(F)
- Q(e);::P(C)
- Q(e);XS(F)::P(C)
- Q(e);N_GUARD::S(F),XQ(e)
- B(h);::QAB1(B)
- S(c);N_GUARD::QAB(B),XS(c)
- S(c);SBLOCK::QAB1(B)
- S(g);SBLOCK::B(E)
- S(g);S_CUTQ(e)::S(F)
- P(a);N_GUARD::S(F)
- P(f);::B(E)
- Tries
- Try
- B(G);XQ(e)
- Threat
- DUALS(2)
- Vars
- B(h);OGATE,XB(E)::QAR2(B),XB(h)
- R(i);::S(F)
- S(g);::P(C)
- Refutation
- R(i);CHECK
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- Q(e);OGATE,P_SPINQ(e),XP(D)::QAR1(B),XQ(e)
- Q(e);::QAR2(B)
- Q(e);::P(C)
- S(g);::P(C)
- Refutation
- B(h);XB(E)
- Try
- Q(B);CHECK
- Vars
- S(c);P_SPINS(c)::QAR2(B)
- Refutation
- S(c);XQ(B)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- Q(e);OGATE,XP(D)::QAR1(B),XQ(e)
- Q(e);::QAR2(B)
- Q(e);::P(C)
- B(h);::P(C)
- S(c);::QAR2(B)
- S(g);::P(C)
- Refutation
- B(h);XB(E)
- Try
- Q(B);CHECK
- Vars
- S(c);N_GUARD,P_SPINS(c)::QAB(B),XS(c)
- Refutation
- S(c);P_SPINS(c)
- Try
- Actual
- S(H);
- Threat
- S(H)
- Vars
- Q(e);N_GUARD,XP(D)::S(F)
- Q(e);XS(H)::P(C)
- B(h);XS(H)::QAB1(B)
- P(f);XS(H)::B(E)
- S(c);SBLOCK::QAB1(B)
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).