MESON Chess Problem Database
Problem Display
PID: 266667 (2n4n/3b2B1/5K2/1pR2Pp1/1P1kpp2/3p4/3Q1P2/b5qB w - - 0 1)
Cramatte, Jacques
Schweizerische Schachzeitung, 2021
#2
8 + 11
SOLUTION
- SOUND
- Sets
- 1...Qxf2
- 2.Kxg5#
- 1...Qh2
- 2.Kxg5#
- 1...Qb1
- 2.Kxg5#
- 1...Qc1
- 2.Kxg5#
- 1...Qd1
- 2.Kxg5#
- 1...Qe1
- 2.Kxg5#
- 1...Qf1
- 2.Kxg5#
- 1...Qxh1
- 2.Kxg5#
- 1...Bb2
- 2.Qxb2#
- 1...Bc3
- 2.Qxc3#
- 1...Bxf5
- 2.Kxf5#
- 1...Bc6
- 2.Ke6#
- 1...Be6
- 2.Kxe6#
- 1...Be8
- 2.Ke6#
- 1...Sb6
- 2.Ke7#
- 1...Sd6
- 2.Ke7#
- 1...Sa7
- 2.Ke7#
- 1...Se7
- 2.Kxe7#
- 1...Sg6
- 2.Kxg6#
- 1...Sf7
- 2.Kxf7#
- 1...f3
- 2.Qe3#
- 1...g4
- 2.Kg5#
- 1...Qxf2
- Tries
- 1.Bg2?
- threat
- 2.Kxg5#
- 1...Sg6
- 2.Kxg6#
- 1...Sf7
- 2.Kxf7#
- 1...g4
- 2.Kg5#
- 1...Qxg2!
- threat
- 1.Qe1?
- threat
- 2.Qxe4#
- 1...Qxe1
- 2.Kxg5#
- 1...Qxh1
- 2.Kxg5#
- 1...Bxf5
- 2.Kxf5#
- 1...Qg2
- 2.Qxa1#
- 1...Bc6
- 2.Ke6#
- 1...Sd6
- 2.Ke7#
- 1...f3
- 2.Qe3#
- 1...e3!
- threat
- 1.Qxf4?
- threat
- 2.Qe3#
- 2.Qe5#
- 2.Qxe4#
- 1...Qxf2
- 2.Kxg5#
- 2.Qxe4#
- 1...Qxh1
- 2.Kxg5#
- 2.Qe3#
- 2.Qe5#
- 1...Bxf5
- 2.Kxf5#
- 2.Qe3#
- 2.Qe5#
- 1...d2
- 2.Qxd2#
- 2.Qe3#
- 2.Qxe4#
- 1...Qh2
- 2.Kxg5#
- 2.Qe3#
- 2.Qxe4#
- 1...Qc1
- 2.Kxg5#
- 2.Qe5#
- 2.Qxe4#
- 1...Qe1
- 2.Kxg5#
- 2.Qe5#
- 1...Qg2
- 2.Qe3#
- 2.Qe5#
- 1...Qg3
- 2.Qxe4#
- 1...Qg4
- 2.Qe3#
- 2.Qe5#
- 1...Bc6
- 2.Ke6#
- 2.Qe3#
- 2.Qe5#
- 1...Sd6
- 2.Ke7#
- 2.Qe3#
- 2.Qe5#
- 2.Qxd6#
- 1...Sg6
- 2.Kxg6#
- 2.Qe3#
- 2.Qxe4#
- 1...Sf7
- 2.Kxf7#
- 2.Qe3#
- 2.Qxe4#
- 1...gxf4!
- threat
- 1.Qa2?
- threat
- 2.Qd5#
- 1...Bc6
- 2.Ke6#
- 1...Be6
- 2.Kxe6#
- 1...Sb6
- 2.Ke7#
- 1...Se7
- 2.Kxe7#
- 1...Qxf2!
- threat
- 1.Bg2?
- Keys
- 1.Qc1!
- 1...Qxf2
- 2.Kxg5#
- 1...Qxc1
- 2.Kxg5#
- 1...Qxh1
- 2.Kxg5#
- 1...Bxf5
- 2.Kxf5#
- 1...d2
- 2.Qxd2#
- 1...Qh2
- 2.Kxg5#
- 2.Qxa1#
- 1...Qd1
- 2.Kxg5#
- 1...Qe1
- 2.Kxg5#
- 1...Qf1
- 2.Kxg5#
- 1...Qg2
- 2.Qxa1#
- 1...Qg3
- 2.Qxa1#
- 1...Qg4
- 2.Qxa1#
- 1...Bb2
- 2.Qxb2#
- 1...Bc3
- 2.Qxc3#
- 1...Bc6
- 2.Ke6#
- 1...Be6
- 2.Kxe6#
- 1...Be8
- 2.Ke6#
- 1...Sb6
- 2.Ke7#
- 1...Sd6
- 2.Ke7#
- 1...Sa7
- 2.Ke7#
- 1...Se7
- 2.Kxe7#
- 1...Sg6
- 2.Kxg6#
- 1...Sf7
- 2.Kxf7#
- 1...e3
- 2.Rd5#
- 1...f3
- 2.Qe3#
- 1...g4
- 2.Kg5#
- 1...Qxf2
- 1.Qc1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 2
- Sets
- Q(b);XP(C)::B(H)+K(G),XP(h)
- Q(b);::B(H)+K(G),XP(h)
- Q(b);XB(A)::B(H)+K(G),XP(h)
- B(a);N_GUARD::QAB(B),XB(a)
- B(a);N_GUARD::QAB1(B),XB(a)
- B(i);XP(F)::B(H)+K(G),XB(i)
- B(i);::B(H)+K(G)
- B(i);::B(H)+K(G),XB(i)
- S(j);::B(H)+K(G)
- S(j);::B(H)+K(G),XS(j)
- S(k);::B(H)+K(G),XS(k)
- P(f);N_GUARD::QAB1(B)
- P(h);::B(H)+K(G)
- Tries
- Try
- B(A);
- Threat
- B(H)+K(G),XP(h)
- Vars
- S(k);::B(H)+K(G),XS(k)
- P(h);::B(H)+K(G)
- Refutation
- Q(b);XB(A)
- Try
- Q(B);N_PINP(c)
- Threat
- QAR1(B),XP(e)
- Vars
- Q(b);XQ(B)::B(H)+K(G),XP(h)
- Q(b);XB(A)::B(H)+K(G),XP(h)
- B(i);XP(F)::B(H)+K(G),XB(i)
- Q(b);N_GUARD::QAB(B),XB(a)
- B(i);::B(H)+K(G)
- S(j);::B(H)+K(G)
- P(f);N_GUARD::QAB1(B)
- Refutation
- P(e);
- Try
- Q(B);N_PINP(c),P_PINP(e),XP(f)
- Threat
- DUALS(3)
- Vars
- Q(b);::QAR1(B),XP(e)
- Refutation
- P(h);N_SPINP(e),XQ(B)
- Try
- Q(B);N_PINP(c)
- Threat
- QAR1(B)
- Vars
- B(i);::B(H)+K(G)
- B(i);::B(H)+K(G),XB(i)
- S(j);::B(H)+K(G)
- S(j);::B(H)+K(G),XS(j)
- Refutation
- Q(b);XP(C)
- Try
- Actual
- Q(B);N_PINP(c)
- Vars
- Q(b);XP(C)::B(H)+K(G),XP(h)
- Q(b);XQ(B)::B(H)+K(G),XP(h)
- Q(b);XB(A)::B(H)+K(G),XP(h)
- B(i);XP(F)::B(H)+K(G),XB(i)
- P(c);OGATEB::QAR2(B),XP(c)
- Q(b);::B(H)+K(G),XP(h)
- Q(b);N_GUARD::QAB(B),XB(a)
- B(a);N_GUARD::QAB(B),XB(a)
- B(a);N_GUARD::QAB1(B),XB(a)
- B(i);::B(H)+K(G)
- B(i);::B(H)+K(G),XB(i)
- S(j);::B(H)+K(G)
- S(j);::B(H)+K(G),XS(j)
- S(k);::B(H)+K(G),XS(k)
- P(e);::R1(E)
- P(f);N_GUARD::QAB1(B)
- P(h);::B(H)+K(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).