MESON Chess Problem Database
Problem Display
PID: 214605 (8/6p1/3p2R1/2pRq1QK/2P1k2P/4Pp1N/8/1n1n1N1B w - - 0 1)
Nouguier, Henri
diagrammes, 1975
#2
10 + 8
SOLUTION
- SOUND
- Sets
- 1...Qa1
- 2.Sg3#
- 2.Qf4#
- 2.Qg4#
- 2.Qf5#
- 1...Qb2
- 2.Sg3#
- 2.Qf4#
- 2.Qg4#
- 2.Qf5#
- 1...Qh2
- 2.Qf5#
- 1...Qc3
- 2.Sg3#
- 2.Qf4#
- 2.Qg4#
- 2.Qf5#
- 1...Qg3
- 2.Sxg3#
- 2.Qf5#
- 1...Qd4
- 2.Qf5#
- 1...Qf4
- 2.Qxf4#
- 1...Qf6
- 2.Sg3#
- 1...Qxd5
- 2.Qxd5#
- 1...Qf5
- 2.Sg3#
- 2.Qxf5#
- 1...Qxg5+
- 2.Sxg5#
- 1...Qe6
- 2.Sg3#
- 2.Rxe6#
- 2.Qf4#
- 1...Qe7
- 2.Sg3#
- 2.Qf4#
- 2.Qxe7#
- 2.Qg4#
- 2.Qf5#
- 1...Qe8
- 2.Sg3#
- 2.Qf4#
- 2.Qg4#
- 2.Qf5#
- 1...Sd2
- 2.Sxd2#
- 1...Sa3
- 2.Sd2#
- 1...Sbc3
- 2.Sd2#
- 1...Sb2
- 2.Sf2#
- 1...Sf2
- 2.Sxf2#
- 1...Sdc3
- 2.Sf2#
- 1...Sxe3
- 2.Sf2#
- 1...Qa1
- Tries
- 1.Sg1?
- threat
- 2.Bxf3#
- 1...Qxd5
- 2.Qxd5#
- 1...Qd4
- 2.Qf5#
- 1...Qg3
- 2.Sxg3#
- 2.Qf5#
- 1...Qf4
- 2.Qxf4#
- 1...Qf6
- 2.Sg3#
- 1...Qf5
- 2.Sg3#
- 2.Qxf5#
- 1...Sd2
- 2.Sxd2#
- 1...Qxg5+!
- threat
- 1.Bg2?
- 1...Qxg5+
- 2.Sxg5#
- 1...Qxd5
- 2.Qxd5#
- 1...Sxe3
- 2.Sf2#
- 1...Qd4
- 2.Qf5#
- 1...Qa1
- 2.Sg3#
- 2.Qf4#
- 2.Qg4#
- 2.Qf5#
- 1...Qb2
- 2.Sg3#
- 2.Qf4#
- 2.Qg4#
- 2.Qf5#
- 1...Qh2
- 2.Qf5#
- 1...Qc3
- 2.Sg3#
- 2.Qf4#
- 2.Qg4#
- 2.Qf5#
- 1...Qg3
- 2.Sxg3#
- 2.Qf5#
- 1...Qf4
- 2.Qxf4#
- 1...Qf6
- 2.Sg3#
- 1...Qf5
- 2.Sg3#
- 2.Qxf5#
- 1...Qe6
- 2.Sg3#
- 2.Rxe6#
- 2.Qf4#
- 1...Qe7
- 2.Sg3#
- 2.Qf4#
- 2.Qxe7#
- 2.Qg4#
- 2.Qf5#
- 1...Qe8
- 2.Sg3#
- 2.Qf4#
- 2.Qg4#
- 2.Qf5#
- 1...Sd2
- 2.Sxd2#
- 1...Sa3
- 2.Sd2#
- 1...Sbc3
- 2.Sd2#
- 1...Sb2
- 2.Sf2#
- 1...Sf2
- 2.Sxf2#
- 1...Sdc3
- 2.Sf2#
- 1...fxg2!
- 1...Qxg5+
- 1.Rxg7?
- 1...Qxg5+
- 2.Sxg5#
- 1...Qxg7
- 2.Sg3#
- 2.Qf4#
- 2.Qf5#
- 1...Qxd5
- 2.Qxd5#
- 1...Sxe3
- 2.Sf2#
- 1...Qd4
- 2.Qf5#
- 2.Qg6#
- 1...Qa1
- 2.Sg3#
- 2.Qf4#
- 2.Qg4#
- 2.Qf5#
- 2.Qg6#
- 1...Qb2
- 2.Sg3#
- 2.Qf4#
- 2.Qg4#
- 2.Qf5#
- 2.Qg6#
- 1...Qh2
- 2.Qf5#
- 2.Qg6#
- 1...Qc3
- 2.Sg3#
- 2.Qf4#
- 2.Qg4#
- 2.Qf5#
- 2.Qg6#
- 1...Qg3
- 2.Sxg3#
- 2.Qf5#
- 1...Qf4
- 2.Qxf4#
- 1...Qf6
- 2.Sg3#
- 1...Qf5
- 2.Sg3#
- 2.Qxf5#
- 1...Qe6
- 2.Sg3#
- 2.Qf4#
- 1...Qe7
- 2.Sg3#
- 2.Rxe7#
- 2.Qf4#
- 2.Qxe7#
- 2.Qg4#
- 2.Qf5#
- 2.Qg6#
- 1...Sd2
- 2.Sxd2#
- 1...Sa3
- 2.Sd2#
- 1...Sbc3
- 2.Sd2#
- 1...Sb2
- 2.Sf2#
- 1...Sf2
- 2.Sxf2#
- 1...Sdc3
- 2.Sf2#
- 1...Qe8+!
- 1...Qxg5+
- 1.Qf5+?
- 1...Kxf5
- 2.Sg3#
- 1...Qxf5+!
- 1...Kxf5
- 1.Sg1?
- Keys
- 1.Kg4!
- threat
- 2.Bxf3#
- 1...Qg3+
- 2.Sxg3#
- 1...Qf4+
- 2.Qxf4#
- 1...Qf5+
- 2.Qxf5#
- 1...Qxg5+
- 2.Sxg5#
- 1...Qe6+
- 2.Rxe6#
- 1...Sf2+
- 2.Sxf2#
- 1...Sxe3+
- 2.Qxe3#
- 1...Qxd5
- 2.Qxd5#
- 1...Qd4
- 2.Qf5#
- 1...Qf6
- 2.Sg3#
- 1...Sd2
- 2.Sxd2#
- threat
- 1.Kg4!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 5
- Sets
- Q(f);N_GUARD,N_PINQ(H)::QAB1(H)
- Q(f);N_PINQ(H)::QAR1(H),XQ(f)
- Q(f);N_GUARD,N_PINQ(H)::S(A)
- Q(f);XR(G)::QAB1(H),XQ(f)
- Q(f);CHECK,XQ(H)::S(D),XQ(f)
- S(a);N_GUARD::S(A),XS(a)
- S(a);N_GUARD::S(A)
- S(b);N_GUARD::S(D)
- S(b);N_GUARD::S(D),XS(b)
- S(b);N_GUARD,XP(C)::S(D)
- Tries
- Try
- S(D);
- Threat
- B(B),XP(c)
- Vars
- Q(f);XR(G)::QAB1(H),XQ(f)
- Q(f);N_GUARD,N_PINQ(H)::QAB1(H)
- Q(f);N_PINQ(H)::QAR1(H),XQ(f)
- Q(f);N_GUARD,N_PINQ(H)::S(A)
- S(a);N_GUARD::S(A),XS(a)
- Refutation
- Q(f);CHECK,XQ(H)
- Try
- B(B);
- Vars
- Q(f);CHECK,XQ(H)::S(D),XQ(f)
- Q(f);XR(G)::QAB1(H),XQ(f)
- S(b);N_GUARD,XP(C)::S(D)
- Q(f);N_GUARD,N_PINQ(H)::QAB1(H)
- Q(f);N_PINQ(H)::QAR1(H),XQ(f)
- Q(f);N_GUARD,N_PINQ(H)::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(a);N_GUARD::S(A)
- S(b);N_GUARD::S(D)
- S(b);N_GUARD::S(D),XS(b)
- Refutation
- P(c);N_SPINP(c),XB(B)
- Try
- R(J);XP(h)
- Vars
- Q(f);CHECK,XQ(H)::S(D),XQ(f)
- Q(f);XR(G)::QAB1(H),XQ(f)
- S(b);N_GUARD,XP(C)::S(D)
- Q(f);N_PINQ(H)::QAR1(H),XQ(f)
- Q(f);N_GUARD,N_PINQ(H)::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(a);N_GUARD::S(A)
- S(b);N_GUARD::S(D)
- S(b);N_GUARD::S(D),XS(b)
- Refutation
- Q(f);CHECK,N_PINQ(H)
- Try
- Q(H);CHECK
- Vars
- K(d);N_SPINP(c),P_SPINQ(f),S_FLIGHT,XQ(H)::S(A)
- Refutation
- Q(f);CHECK,XQ(H)
- Try
- Actual
- K(I);N_SPINQ(H),S_FLIGHT
- Threat
- B(B),XP(c)
- Vars
- Q(f);CHECK,N_GUARD::S(A),XQ(f)
- Q(f);CHECK,N_GUARD::QAR1(H),XQ(f)
- Q(f);CHECK,N_GUARD::QAB1(H),XQ(f)
- Q(f);CHECK,XQ(H)::S(D),XQ(f)
- Q(f);CHECK,OGATEB::R(J),XQ(f)
- S(b);CHECK,N_GUARD::S(D),XS(b)
- S(b);CHECK,OGATE,XP(C)::QAR1(H),XS(b)
- Q(f);OGATE,XR(G)::QAB1(H),XQ(f)
- Q(f);N_GUARD::QAB1(H)
- Q(f);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
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).