MESON Chess Problem Database
Problem Display
PID: 275701 (4B3/3p2KN/6P1/nq1pBkN1/6pn/1p2Q2P/8/5r2 w - - 0 1)
Claeye, F
Probleemblad, 1953
#2
8 + 9
SOLUTION
- SOUND
- Sets
- 1...Qe2
- 2.Bxd7#
- 1...Qd3
- 2.Bxd7#
- 1...Qc4
- 2.Bxd7#
- 1...Qb4
- 2.Bxd7#
- 1...Qc5
- 2.Bxd7#
- 1...Qb8
- 2.Bxd7#
- 1...Ra1
- 2.Qf4#
- 1...Rb1
- 2.Qf4#
- 1...Rc1
- 2.Qf4#
- 1...Rd1
- 2.Qf4#
- 1...Re1
- 2.Qf4#
- 1...Rg1
- 2.Qf4#
- 1...Rh1
- 2.Qf4#
- 1...Rf4
- 2.Qxf4#
- 1...Sf3
- 2.Qf4#
- 1...Sxg6
- 2.Bxg6#
- 1...Sc6
- 2.Bxd7#
- 1...d4
- 2.Qe4#
- 1...Qe2
- Tries
- 1.Bh2?
- threat
- 2.Qe5#
- 1...Sxg6
- 2.Bxg6#
- 1...gxh3
- 2.Qxh3#
- 1...Qe2
- 2.Bxd7#
- 1...Qb8
- 2.Bxd7#
- 2.Qd3#
- 1...Re1
- 2.Qf4#
- 1...Rf4
- 2.Qxf4#
- 1...Sf3
- 2.Qf4#
- 1...Sc4
- 2.Qd3#
- 1...Sc6
- 2.Bxd7#
- 1...d4
- 2.Qe4#
- 1...d6
- 2.Qe6#
- 1...g3!
- threat
- 1.Bg3?
- threat
- 2.Qe5#
- 1...Sxg6
- 2.Bxg6#
- 1...Qe2
- 2.Bxd7#
- 1...Qb8
- 2.Bxd7#
- 2.Qd3#
- 1...Re1
- 2.Qf4#
- 1...Rf4
- 2.Qxf4#
- 1...Sf3
- 2.Qf4#
- 1...Sc4
- 2.Qd3#
- 1...Sc6
- 2.Bxd7#
- 1...d4
- 2.Qe4#
- 1...d6
- 2.Qe6#
- 1...gxh3!
- threat
- 1.Bc7?
- threat
- 2.Qe5#
- 1...Sxg6
- 2.Bxg6#
- 1...gxh3
- 2.Qxh3#
- 1...Re1
- 2.Qf4#
- 1...Qe2
- 2.Bxd7#
- 1...Sf3
- 2.Qf4#
- 1...Sc4
- 2.Qd3#
- 1...Sc6
- 2.Bxd7#
- 1...d4
- 2.Qe4#
- 1...d6!
- threat
- 1.Bb8?
- threat
- 2.Qe5#
- 1...Qxb8
- 2.Bxd7#
- 1...Sxg6
- 2.Bxg6#
- 1...gxh3
- 2.Qxh3#
- 1...Re1
- 2.Qf4#
- 1...Qe2
- 2.Bxd7#
- 1...Sf3
- 2.Qf4#
- 1...Sc4
- 2.Qd3#
- 1...Sc6
- 2.Bxd7#
- 1...d4
- 2.Qe4#
- 1...d6!
- threat
- 1.Bh2?
- Keys
- 1.Bd6!
- threat
- 2.Qe5#
- 1...Sxg6
- 2.Bxg6#
- 1...gxh3
- 2.Qxh3#
- 1...Qe2
- 2.Bxd7#
- 1...Re1
- 2.Qf4#
- 1...Sf3
- 2.Qf4#
- 1...Sc4
- 2.Qd3#
- 1...Sc6
- 2.Bxd7#
- 1...d4
- 2.Qe4#
- threat
- 1.Bd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 12
- Sets
- Q(f);N_GUARD::B(H),XP(i)
- R(a);N_GUARD::QAR1(A)
- R(a);N_GUARD::QAR1(A),XR(a)
- S(d);S_CUTR(a)::QAR1(A)
- S(d);OGATE,XP(E)::B(H),XS(d)
- S(e);S_CUTQ(f)::B(H),XP(i)
- P(g);N_GUARD::QAB1(A)
- Tries
- Try
- B(C);
- Threat
- QAR1(A)
- Vars
- S(d);OGATE,XP(E)::B(H),XS(d)
- P(c);OGATE,XP(B)::QAB(A),XP(c)
- Q(f);N_GUARD::B(H),XP(i)
- R(a);N_GUARD::QAR1(A)
- R(a);N_GUARD::QAR1(A),XR(a)
- S(d);S_CUTR(a)::QAR1(A)
- S(e);S_CUTQ(f)::QAB(A)
- S(e);S_CUTQ(f)::B(H),XP(i)
- P(g);N_GUARD::QAB1(A)
- P(i);N_GUARD::QAB1(A)
- Refutation
- P(c);
- Try
- B(C);
- Threat
- QAR1(A)
- Vars
- S(d);OGATE,XP(E)::B(H),XS(d)
- Q(f);N_GUARD::B(H),XP(i)
- R(a);N_GUARD::QAR1(A)
- R(a);N_GUARD::QAR1(A),XR(a)
- S(d);S_CUTR(a)::QAR1(A)
- S(e);S_CUTQ(f)::QAB(A)
- S(e);S_CUTQ(f)::B(H),XP(i)
- P(g);N_GUARD::QAB1(A)
- P(i);N_GUARD::QAB1(A)
- Refutation
- P(c);XP(B)
- Try
- B(C);
- Threat
- QAR1(A)
- Vars
- S(d);OGATE,XP(E)::B(H),XS(d)
- P(c);OGATE,XP(B)::QAB(A),XP(c)
- R(a);N_GUARD::QAR1(A)
- Q(f);N_GUARD::B(H),XP(i)
- S(d);S_CUTR(a)::QAR1(A)
- S(e);S_CUTQ(f)::QAB(A)
- S(e);S_CUTQ(f)::B(H),XP(i)
- P(g);N_GUARD::QAB1(A)
- Refutation
- P(i);
- Try
- B(C);
- Threat
- QAR1(A)
- Vars
- Q(f);N_GUARD,XB(C)::B(H),XP(i)
- S(d);OGATE,XP(E)::B(H),XS(d)
- P(c);OGATE,XP(B)::QAB(A),XP(c)
- R(a);N_GUARD::QAR1(A)
- Q(f);N_GUARD::B(H),XP(i)
- S(d);S_CUTR(a)::QAR1(A)
- S(e);S_CUTQ(f)::QAB(A)
- S(e);S_CUTQ(f)::B(H),XP(i)
- P(g);N_GUARD::QAB1(A)
- Refutation
- P(i);
- Try
- Actual
- B(C);
- Threat
- QAR1(A)
- Vars
- S(d);OGATE,XP(E)::B(H),XS(d)
- P(c);OGATE,XP(B)::QAB(A),XP(c)
- Q(f);N_GUARD::B(H),XP(i)
- R(a);N_GUARD::QAR1(A)
- S(d);S_CUTR(a)::QAR1(A)
- S(e);S_CUTQ(f)::QAB(A)
- S(e);S_CUTQ(f)::B(H),XP(i)
- P(g);N_GUARD::QAB1(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).