MESON Chess Problem Database
Problem Display
PID: 153124 (1B1n4/3Bp2q/1Np4b/8/3Nk1pp/R7/1nP1pQ2/K2b4 w - - 0 1)
Shire, David J
Probleemblad, 2014
#2
8 + 11
SOLUTION
- SOUND
- Sets
- 1...Qf5
- 2.Bxf5#
- 1...Qg8
- 2.Bf5#
- 1...Qg7
- 2.Bf5#
- 1...Qh8
- 2.Bf5#
- 1...Be3
- 2.Qxe3#
- 1...Bf4
- 2.Qxf4#
- 1...Bg7
- 2.Qe3#
- 2.Qf4#
- 1...Bf8
- 2.Qe3#
- 2.Qf4#
- 1...Sd3
- 2.cxd3#
- 1...Se6
- 2.Bxc6#
- 1...Sb7
- 2.Bxc6#
- 1...Sf7
- 2.Bxc6#
- 1...Qf5
- Tries
- 1.Sxe2?
- threat
- 2.Sc3#
- 2.Qd4#
- 2.Qg2#
- 1...Bxc2
- 2.Qd4#
- 2.Qg2#
- 1...Qf5
- 2.Sc3#
- 2.Bxf5#
- 2.Qd4#
- 2.Qxf5#
- 1...Qf7
- 2.Sc3#
- 2.Qd4#
- 1...Qg7
- 2.Bf5#
- 2.Qg2#
- 2.Qf5#
- 1...Qh8
- 2.Bf5#
- 2.Qg2#
- 2.Qf5#
- 1...Bd2
- 2.Qd4#
- 2.Qg2#
- 1...Be3
- 2.Rxe3#
- 2.Qxe3#
- 2.Qg2#
- 1...Bg7
- 2.Re3#
- 2.Qe3#
- 2.Qg2#
- 2.Qf4#
- 1...Sd3
- 2.Sc3#
- 2.cxd3#
- 1...Sa4
- 2.Rxa4#
- 2.Qd4#
- 2.Qg2#
- 1...Se6
- 2.Sc3#
- 2.Bxc6#
- 1...h3
- 2.Sc3#
- 2.Sg3#
- 2.Qd4#
- 1...c5
- 2.Sc3#
- 2.Qg2#
- 1...e5
- 2.Sc3#
- 2.Qg2#
- 1...e6
- 2.Sc3#
- 1...Bxe2!
- threat
- 1.Sb3?
- threat
- 2.Sc5#
- 1...Qf5
- 2.Bxf5#
- 1...Be3
- 2.Qg2#
- 1...Sa4
- 2.Rxa4#
- 1...Se6
- 2.Bxc6#
- 1...Sb7
- 2.Bxc6#
- 1...c5
- 2.Sxc5#
- 1...Sd3!
- threat
- 1.Sb5?
- threat
- 2.Sc3#
- 2.Qd4#
- 2.Qg2#
- 1...Bxc2
- 2.Qd4#
- 2.Qg2#
- 1...e1Q
- 2.Qd4#
- 1...e1S
- 2.Sc3#
- 2.Qd4#
- 1...e1B
- 2.Qd4#
- 1...e1R
- 2.Sc3#
- 2.Qd4#
- 1...Qf5
- 2.Sc3#
- 2.Bxf5#
- 2.Qd4#
- 2.Qxf5#
- 1...Qf7
- 2.Sc3#
- 2.Qd4#
- 1...Qg7
- 2.Bf5#
- 2.Qg2#
- 2.Qf5#
- 1...Qh8
- 2.Bf5#
- 2.Qg2#
- 2.Qf5#
- 1...Bd2
- 2.Qd4#
- 2.Qg2#
- 1...Be3
- 2.Rxe3#
- 2.Qxe3#
- 2.Qg2#
- 1...Bg7
- 2.Re3#
- 2.Qe3#
- 2.Qg2#
- 2.Qf4#
- 1...Sd3
- 2.Sc3#
- 2.cxd3#
- 1...Sa4
- 2.Rxa4#
- 2.Qd4#
- 2.Qg2#
- 1...Se6
- 2.Sc3#
- 2.Bxc6#
- 1...h3
- 2.Sc3#
- 2.Qd4#
- 1...c5
- 2.Sc3#
- 2.Qg2#
- 1...e5
- 2.Sc3#
- 2.Sd6#
- 1...e6
- 2.Sc3#
- 1...cxb5!
- threat
- 1.Sf5?
- threat
- 2.Qd4#
- 2.Qg2#
- 1...Qxf5
- 2.Bxf5#
- 1...e1Q
- 2.Qd4#
- 1...e1S
- 2.Qd4#
- 1...e1B
- 2.Qd4#
- 1...e1R
- 2.Qd4#
- 1...Qg7
- 2.Qg2#
- 1...Qh8
- 2.Qg2#
- 1...Be3
- 2.Rxe3#
- 2.Qxe3#
- 2.Qg2#
- 1...Bg7
- 2.Re3#
- 2.Qe3#
- 2.Qg2#
- 2.Qf4#
- 1...Sd3
- 2.Qg2#
- 2.cxd3#
- 1...Se6
- 2.Bxc6#
- 1...h3
- 2.Sg3#
- 2.Qd4#
- 1...c5
- 2.Qg2#
- 1...e5
- 2.Sd6#
- 1...e6!
- threat
- 1.Qxe2+?
- 1...Kxd4
- 2.Qe5#
- 1...Be3
- 2.Qxe3#
- 1...Bxe2!
- 1...Kxd4
- 1.Qf5+?
- 1...Kxd4
- 2.Qe5#
- 1...Qxf5!
- 1...Kxd4
- 1.Sxe2?
- Keys
- 1.Se6!
- threat
- 2.Sc5#
- 1...Sxe6
- 2.Bxc6#
- 1...Qf5
- 2.Qd4#
- 1...Be3
- 2.Rxe3#
- 1...Sd3
- 2.cxd3#
- 1...Sa4
- 2.Rxa4#
- 1...Sb7
- 2.Bxc6#
- 1...c5
- 2.Sxc5#
- threat
- 1.Se6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- Q(j);N_GUARD::B(G),XQ(j)
- Q(j);N_GUARD::B(G)
- B(h);N_GUARD::QAR1(C),XB(h)
- S(b);OGATE::P(B),XS(b)
- S(k);N_GUARD::B(G),XP(g)
- Tries
- Try
- S(E);XP(c)
- Threat
- DUALS(3)
- Vars
- P(i);::S(E)
- Refutation
- B(a);XS(E)
- Try
- S(E);
- Threat
- S(E)
- Vars
- Q(j);N_GUARD::B(G),XQ(j)
- B(h);SBLOCK::QAB(C)
- S(b);N_GUARD::R(D),XS(b)
- S(k);N_GUARD::B(G),XP(g)
- P(g);::S(E),XP(g)
- Refutation
- S(b);
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- P(c);::QAR1(C)
- P(i);::S(E)
- Refutation
- P(g);XS(E)
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(j);OGATE,XS(E)::B(G),XQ(j)
- P(c);::QAR1(C)
- Q(j);::QAB(C)
- S(k);N_GUARD::B(G),XP(g)
- P(g);::QAB(C)
- P(i);N_GUARD,SBLOCK::S(E)
- Refutation
- P(i);
- Try
- Q(C);CHECK,XP(c)
- Vars
- K(d);OGATE,P-FLIGHT,XS(E)::QAB1(C)
- B(h);N_GUARD,P_SPINB(h)::QAR1(C),XB(h)
- Refutation
- B(a);XQ(C)
- Try
- Q(C);CHECK
- Vars
- K(d);P-FLIGHT,XS(E)::QAB1(C)
- Refutation
- Q(j);XQ(C)
- Try
- Actual
- S(E);
- Threat
- S(E)
- Vars
- S(k);N_GUARD,XS(E)::B(G),XP(g)
- Q(j);SBLOCK::QAR1(C)
- B(h);N_GUARD::R1(D),XB(h)
- S(b);OGATE::P(B),XS(b)
- S(b);N_GUARD::R(D),XS(b)
- S(k);N_GUARD::B(G),XP(g)
- P(g);::S(E),XP(g)
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).