MESON Chess Problem Database
Problem Display
PID: 242693 (8/p2K4/Pp1nB2p/1P1p3P/4k1P1/3N4/2nQP2b/6BN w - - 0 1)
Hartong, Jan
Tijdschrift vd KNSB, 1951
#2
11 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Bxg1
- 2.Qf4#
- 1...Bg3
- 2.Sxg3#
- 1...Bf4
- 2.Qxf4#
- 1...Be5
- 2.Sdf2#
- 1...Sa1
- 2.Qe3#
- 1...Se1
- 2.Qe3#
- 1...Sa3
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sb4
- 2.Qe3#
- 1...Sd4
- 2.Shf2#
- 2.Qe3#
- 1...Sc4
- 2.Bf5#
- 1...Sxb5
- 2.Bf5#
- 1...Sf5
- 2.Bxf5#
- 1...Sb7
- 2.Bf5#
- 1...Sf7
- 2.Bf5#
- 1...Sc8
- 2.Bf5#
- 1...Se8
- 2.Bf5#
- 1...d4
- 2.Shf2#
- 1...Bxg1
- Tries
- 1.Ke7?
- 1...Sf5+
- 2.Bxf5#
- 1...Bxg1
- 2.Qf4#
- 1...Sxb5
- 2.Bf5#
- 1...Se3
- 2.Qxe3#
- 1...Bg3
- 2.Sxg3#
- 1...Bf4
- 2.Qxf4#
- 1...Be5
- 2.Sdf2#
- 1...Sa1
- 2.Qe3#
- 1...Se1
- 2.Qe3#
- 1...Sa3
- 2.Qe3#
- 1...Sb4
- 2.Qe3#
- 1...Sd4
- 2.Shf2#
- 2.Qe3#
- 1...Sc4
- 2.Bf5#
- 1...Sb7
- 2.Bf5#
- 1...Sf7
- 2.Bf5#
- 1...Se8
- 2.Bf5#
- 1...d4
- 2.Shf2#
- 1...Sc8+!
- 1...Sf5+
- 1.Bxh2?
- threat
- 2.Sdf2#
- 2.Qf4#
- 1...Se3
- 2.Sdf2#
- 1...Kd4!
- threat
- 1.Be3?
- threat
- 2.Shf2#
- 1...Bg1
- 2.Sg3#
- 1...Bg3
- 2.Sxg3#
- 1...Sxe3!
- threat
- 1.Bc5?
- threat
- 2.Shf2#
- 1...Bg1
- 2.Sg3#
- 2.Qf4#
- 1...Bg3
- 2.Sxg3#
- 1...bxc5!
- threat
- 1.Bxb6?
- threat
- 2.Shf2#
- 1...Bg1
- 2.Sg3#
- 2.Qf4#
- 1...Bg3
- 2.Sxg3#
- 1...axb6!
- threat
- 1.Bg8?
- 1...Bxg1
- 2.Qf4#
- 1...Sxb5
- 2.Bh7#
- 1...Se3
- 2.Qxe3#
- 1...Bg3
- 2.Sxg3#
- 1...Bf4
- 2.Qxf4#
- 1...Be5
- 2.Sdf2#
- 1...Sa1
- 2.Qe3#
- 1...Se1
- 2.Qe3#
- 1...Sa3
- 2.Qe3#
- 1...Sb4
- 2.Qe3#
- 1...Sd4
- 2.Shf2#
- 2.Qe3#
- 1...Sc4
- 2.Bh7#
- 1...Sb7
- 2.Bh7#
- 1...Sf7
- 2.Bh7#
- 1...Sc8
- 2.Bh7#
- 1...Se8
- 2.Bh7#
- 1...d4
- 2.Shf2#
- 1...Sf5!
- 1...Bxg1
- 1.Qc1?
- 1...Bxg1
- 2.Qf4#
- 1...Sxb5
- 2.Bf5#
- 1...Se3
- 2.Qxe3#
- 1...Sf5
- 2.Bxf5#
- 1...Bg3
- 2.Sxg3#
- 1...Bf4
- 2.Qxf4#
- 1...Sa1
- 2.Qe3#
- 1...Se1
- 2.Qe3#
- 1...Sa3
- 2.Qe3#
- 1...Sb4
- 2.Qe3#
- 1...Sd4
- 2.Shf2#
- 2.Qe3#
- 1...Sc4
- 2.Bf5#
- 1...Sb7
- 2.Bf5#
- 1...Sf7
- 2.Bf5#
- 1...Sc8
- 2.Bf5#
- 1...Se8
- 2.Bf5#
- 1...d4
- 2.Shf2#
- 1...Be5!
- 1...Bxg1
- 1.Qg5?
- threat
- 2.Bxd5#
- 2.Qxd5#
- 1...Bxg1
- 2.Qf4#
- 2.Qe5#
- 1...Se3
- 2.Qxe3#
- 1...Be5
- 2.Qxe5#
- 1...Sb4
- 2.Qe3#
- 1...Sf5
- 2.Bxf5#
- 2.Qxf5#
- 1...d4
- 2.Shf2#
- 2.Sdf2#
- 2.Bd5#
- 2.Qd5#
- 1...hxg5!
- threat
- 1.Qxh6?
- 1...Bxg1
- 2.Qf4#
- 1...Sxb5
- 2.Bf5#
- 2.Qg6#
- 2.Qh7#
- 1...Se3
- 2.Qxe3#
- 1...Bg3
- 2.Sxg3#
- 1...Bf4
- 2.Qxf4#
- 1...Sa1
- 2.Qe3#
- 1...Se1
- 2.Qe3#
- 1...Sa3
- 2.Qe3#
- 1...Sb4
- 2.Qe3#
- 1...Sd4
- 2.Shf2#
- 2.Qe3#
- 1...Sc4
- 2.Bf5#
- 2.Qg6#
- 2.Qh7#
- 1...Sf5
- 2.Bxf5#
- 1...Sb7
- 2.Bf5#
- 2.Qg6#
- 2.Qh7#
- 1...Sf7
- 2.Bf5#
- 2.Qg6#
- 2.Qh7#
- 1...Sc8
- 2.Bf5#
- 2.Qg6#
- 2.Qh7#
- 1...Se8
- 2.Bf5#
- 2.Qg6#
- 2.Qh7#
- 1...d4
- 2.Shf2#
- 1...Be5!
- 1...Bxg1
- 1.Ke7?
- Keys
- 1.Qc3!
- 1...Bxg1
- 2.Qe5#
- 1...Sxb5
- 2.Bf5#
- 1...Be5
- 2.Qxe5#
- 1...Bg3
- 2.Sxg3#
- 1...Bf4
- 2.Sdf2#
- 1...Sa1
- 2.Qd4#
- 1...Se1
- 2.Qd4#
- 1...Sa3
- 2.Qd4#
- 1...Se3
- 2.Shf2#
- 1...Sb4
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sc4
- 2.Bf5#
- 1...Sf5
- 2.Bxf5#
- 1...Sb7
- 2.Bf5#
- 1...Sf7
- 2.Bf5#
- 1...Sc8
- 2.Bf5#
- 1...Se8
- 2.Bf5#
- 1...d4
- 2.Qc6#
- 1...Bxg1
- 1.Qc3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 9
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(b);N_GUARD,XB(A)::QAR1(C)
- B(b);N_GUARD::S(B),XB(b)
- B(b);N_GUARD::QAR1(C),XB(b)
- B(b);SBLOCK::S(E)
- S(a);N_GUARD::QAR1(C)
- S(a);N_GUARD::QAR1(C),XS(a)
- S(f);N_GUARD::B(J)
- S(f);N_GUARD,XP(G)::B(J)
- S(f);N_GUARD::B(J),XS(f)
- P(d);SBLOCK::S(B)
- Tries
- Try
- K(K);P-FLIGHT
- Vars
- S(f);CHECK,N_GUARD::B(J),XS(f)
- B(b);N_GUARD,XB(A)::QAR1(C)
- S(f);N_GUARD,XP(G)::B(J)
- S(a);N_GUARD::QAR1(C),XS(a)
- B(b);N_GUARD::S(B),XB(b)
- B(b);N_GUARD::QAR1(C),XB(b)
- B(b);SBLOCK::S(E)
- S(a);N_GUARD::QAR1(C)
- S(f);N_GUARD::B(J)
- P(d);SBLOCK::S(B)
- Refutation
- S(f);CHECK
- Try
- B(A);XB(b)
- Threat
- DUALS(2)
- Vars
- S(a);::S(E)
- Refutation
- K(c);P-FLIGHT
- Try
- B(A);
- Threat
- S(B)
- Vars
- B(b);N_GUARD::S(B)
- B(b);N_GUARD::S(B),XB(b)
- Refutation
- S(a);XB(A)
- Try
- B(A);
- Threat
- S(B)
- Vars
- B(b);N_GUARD::S(B),XB(b)
- Refutation
- P(e);XB(A)
- Try
- B(A);XP(e)
- Threat
- S(B)
- Vars
- B(b);N_GUARD::S(B),XB(b)
- Refutation
- P(h);XB(A)
- Try
- B(J);
- Vars
- B(b);N_GUARD,XB(A)::QAR1(C)
- S(f);N_GUARD,XP(G)::B(J)
- S(a);N_GUARD::QAR1(C),XS(a)
- B(b);N_GUARD::S(B),XB(b)
- B(b);N_GUARD::QAR1(C),XB(b)
- B(b);SBLOCK::S(E)
- S(a);N_GUARD::QAR1(C)
- S(f);N_GUARD::B(J)
- P(d);SBLOCK::S(B)
- Refutation
- S(f);
- Try
- Q(C);
- Vars
- B(b);N_GUARD,XB(A)::QAR1(C)
- S(f);N_GUARD,XP(G)::B(J)
- S(a);N_GUARD::QAR1(C),XS(a)
- S(f);N_GUARD::B(J),XS(f)
- B(b);N_GUARD::S(B),XB(b)
- B(b);N_GUARD::QAR1(C),XB(b)
- S(a);N_GUARD::QAR1(C)
- S(f);N_GUARD::B(J)
- P(d);SBLOCK::S(B)
- Refutation
- B(b);
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- S(a);N_GUARD::QAR1(C),XS(a)
- B(b);N_GUARD::QAR1(C),XB(b)
- S(a);N_GUARD::QAR1(C)
- Refutation
- P(g);XQ(C)
- Try
- Q(C);XP(g)
- Vars
- B(b);N_GUARD,XB(A)::QAR1(C)
- S(a);N_GUARD::QAR1(C),XS(a)
- B(b);N_GUARD::S(B),XB(b)
- B(b);N_GUARD::QAR1(C),XB(b)
- S(a);N_GUARD::QAR1(C)
- S(f);N_GUARD::B(J),XS(f)
- P(d);SBLOCK::S(B)
- Refutation
- B(b);
- Try
- Actual
- Q(C);
- Vars
- B(b);N_GUARD,XB(A)::QAR1(C)
- S(f);N_GUARD,XP(G)::B(J)
- B(b);N_GUARD::QAR1(C),XB(b)
- B(b);N_GUARD::S(B),XB(b)
- B(b);SBLOCK::S(E)
- S(a);N_GUARD::QAR1(C)
- S(a);SBLOCK::S(B)
- S(a);N_GUARD::QAR1(C),XS(a)
- S(f);N_GUARD::B(J)
- S(f);N_GUARD::B(J),XS(f)
- P(d);OGATEB::QAB(C)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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