MESON Chess Problem Database
Problem Display
PID: 263770 (qnN1R1n1/bpp2pK1/b3B3/4k3/4N1R1/4B3/8/8 w - - 0 1)
van Dijk, Johannes
Tijdschrift vd NSB, 1932
#2
7 + 9
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...f5
- 2.Bxg8#
- 1...f5
- Tries
- 1.Sd2?
- threat
- 2.Sf3#
- 2.Re4#
- 1...fxe6
- 2.Rg5#
- 1...Se7
- 2.Re4#
- 1...Be2
- 2.Re4#
- 1...Bd3
- 2.Sf3#
- 1...Sf6
- 2.Sf3#
- 2.Rg5#
- 1...b6
- 2.Bd4#
- 1...f5
- 2.Sf3#
- 2.Bxg8#
- 1...b5!
- threat
- 1.Sc5?
- threat
- 2.Bd4#
- 2.Re4#
- 1...fxe6
- 2.Rg5#
- 1...b5
- 2.Sd3#
- 2.Bd4#
- 1...Bd3
- 2.Sxd3#
- 2.Bd4#
- 1...Sc6
- 2.Sd7#
- 2.Re4#
- 1...Sf6
- 2.Bd4#
- 2.Rg5#
- 1...b6
- 2.Bd4#
- 1...f5
- 2.Bd4#
- 2.Bxg8#
- 1...Bxc5!
- threat
- 1.Sg5?
- threat
- 2.Sf3#
- 2.Sxf7#
- 2.Re4#
- 1...b5
- 2.Sxf7#
- 1...Be2
- 2.Sxf7#
- 2.Re4#
- 1...Bd3
- 2.Sf3#
- 2.Sxf7#
- 1...Sf6
- 2.Sf3#
- 2.Sxf7#
- 1...Sh6
- 2.Sf3#
- 2.Re4#
- 1...Se7
- 2.Re4#
- 1...b6
- 2.Sxf7#
- 2.Bd4#
- 1...f5
- 2.Sf3#
- 2.Sf7#
- 2.Bxg8#
- 1...f6
- 2.Sf3#
- 2.Sf7#
- 2.Re4#
- 1...fxe6!
- threat
- 1.Sed6?
- threat
- 2.Sxf7#
- 2.Re4#
- 1...fxe6
- 2.Rg5#
- 1...Se7
- 2.Re4#
- 1...b5
- 2.Sxf7#
- 1...Bd3
- 2.Sxf7#
- 1...Sf6
- 2.Sxf7#
- 2.Rg5#
- 1...Sh6
- 2.Ba2#
- 2.Bb3#
- 2.Bc4#
- 2.Bxf7#
- 2.Re4#
- 1...b6
- 2.Sxf7#
- 2.Bd4#
- 1...f5
- 2.Sf7#
- 2.Bxg8#
- 1...f6
- 2.Sf7#
- 2.Bxg8#
- 2.Re4#
- 1...cxd6!
- threat
- 1.Ba2+?
- 1...Kf5
- 2.Rf4#
- 2.Rg5#
- 1...Se7!
- 1...Kf5
- 1.Bb3+?
- 1...Kf5
- 2.Rf4#
- 2.Rg5#
- 1...Se7!
- 1...Kf5
- 1.Bc4+?
- 1...Kf5
- 2.Rf4#
- 2.Rg5#
- 1...Se7!
- 1...Kf5
- 1.Bd7+?
- 1...Kd5
- 2.Sc3#
- 1...Se7!
- 1...Kd5
- 1.Bxf7+?
- 1...Kf5
- 2.Rf4#
- 2.Rg5#
- 1...Se7!
- 1...Kf5
- 1.Rg5+?
- 1...f5
- 2.Bxg8#
- 1...Kxe4!
- 1...f5
- 1.Sd2?
- Keys
- 1.Sf2!
- threat
- 2.Re4#
- 1...fxe6
- 2.Rg5#
- 1...Bd3
- 2.Sxd3#
- 1...Sf6
- 2.Rg5#
- 1...b5
- 2.Sd3#
- 1...b6
- 2.Bd4#
- 1...f5
- 2.Bxg8#
- threat
- 1.Sf2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- P(f);OGATE,SBLOCK::R(G)+B(D),XS(i)
- Tries
- Try
- S(B);
- Threat
- DUALS(2)
- Vars
- P(f);N_GUARD,P_SPINP(f),XB(D)::R(C)
- S(i);::R1(C)
- B(b);::R1(C)
- B(b);::S(B)
- P(d);S_CUTB(c)::B(A)
- Refutation
- P(d);
- Try
- S(B);
- Threat
- DUALS(2)
- Vars
- P(f);N_GUARD,P_SPINP(f),XB(D)::R(C)
- P(d);::B(A)
- Refutation
- B(c);XS(B)
- Try
- S(B);
- Threat
- DUALS(3)
- Vars
- P(d);::S(B),XP(f)
- S(i);::R1(C)
- Refutation
- P(f);P_SPINP(f),XB(D)
- Try
- S(B);
- Threat
- DUALS(2)
- Vars
- P(f);N_GUARD,P_SPINP(f),XB(D)::R(C)
- S(i);::R1(C)
- P(d);::S(B),XP(f)
- B(b);::S(B),XP(f)
- Refutation
- P(e);XS(B)
- Try
- B(D);CHECK
- Refutation
- S(i);P_SPINS(i)
- Try
- B(D);CHECK
- Refutation
- S(i);P_SPINS(i)
- Try
- B(D);CHECK
- Refutation
- S(i);P_SPINS(i)
- Try
- B(D);CHECK
- Vars
- K(a);P-FLIGHT,S_CUTS(i)::S(B)
- Refutation
- S(i);P_SPINS(i)
- Try
- B(D);CHECK,XP(f)
- Refutation
- S(i);P_SPINS(i)
- Try
- R(C);CHECK
- Vars
- P(f);OGATE,P_SPINP(f)::R(G)+B(D),XS(i)
- Refutation
- K(a);P-FLIGHT,XS(B)
- Try
- Actual
- S(B);
- Threat
- R1(C)
- Vars
- P(f);N_GUARD,P_SPINP(f),XB(D)::R(C)
- B(b);N_GUARD::S(B),XB(b)
- S(i);S_CUTP(f)::R(C)
- P(d);S_CUTB(b)::S(B)
- P(d);S_CUTB(c)::B(A)
- P(f);OGATE,SBLOCK::R(G)+B(D),XS(i)
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).