MESON Chess Problem Database
Problem Display
PID: 7167 (3B1bN1/5ppK/4Np1p/4P2k/2R3RP/7P/4n1P1/1BnQ4 w - - 0 1)
Heyl, Peter
Schach, 1998
#2
12 + 8
SOLUTION
- SOUND
- Sets
- 1...Ba3
- 2.Sxg7#
- 1...Bb4
- 2.Sxg7#
- 1...Bc5
- 2.Sxg7#
- 1...Bd6
- 2.Sxg7#
- 1...Be7
- 2.Sxg7#
- 1...Sg1
- 2.Sf4#
- 2.Rg5#
- 1...Sc3
- 2.Sf4#
- 2.Rg5#
- 1...Sg3
- 2.Sf4#
- 2.Rg5#
- 1...Sd4
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...fxe6
- 2.Bg6#
- 1...g5
- 2.Sxf6#
- 1...g6
- 2.Sxf6#
- 1...Ba3
- Tries
- 1.Rg3?
- 1...fxe6
- 2.Bg6#
- 1...Sa2
- 2.Qxe2#
- 1...Ba3
- 2.Sxg7#
- 1...Bb4
- 2.Sxg7#
- 1...Bc5
- 2.Sxg7#
- 1...Bd6
- 2.Sxg7#
- 1...Be7
- 2.Sxg7#
- 1...Sb3
- 2.Qxe2#
- 1...Sd3
- 2.Qxe2#
- 1...f5
- 2.Sf4#
- 1...g5
- 2.Sxf6#
- 1...g6
- 2.Sxf6#
- 1...fxe5!
- 1...fxe6
- 1.Rge4?
- 1...fxe5
- 2.g4#
- 1...Sa2
- 2.Qxe2#
- 1...Ba3
- 2.Sxg7#
- 1...Bb4
- 2.Sxg7#
- 1...Bc5
- 2.Sxg7#
- 1...Bd6
- 2.Sxg7#
- 1...Be7
- 2.Sxg7#
- 1...Sb3
- 2.Qxe2#
- 1...Sd3
- 2.Qxe2#
- 1...f5
- 2.Sf4#
- 1...g5
- 2.Sxf6#
- 1...g6
- 2.Sxf6#
- 1...fxe6!
- 1...fxe5
- 1.Rgf4?
- 1...fxe5
- 2.g4#
- 1...fxe6
- 2.Bg6#
- 1...Sa2
- 2.Qxe2#
- 1...Ba3
- 2.Sxg7#
- 1...Bb4
- 2.Sxg7#
- 1...Bc5
- 2.Sxg7#
- 1...Bd6
- 2.Sxg7#
- 1...Be7
- 2.Sxg7#
- 1...Sb3
- 2.Qxe2#
- 1...Sd3
- 2.Qxe2#
- 1...g5
- 2.Sxf6#
- 1...g6
- 2.Sxf6#
- 1...f5!
- 1...fxe5
- 1.Rg6?
- 1...fxe5
- 2.g4#
- 1...fxg6
- 2.Bxg6#
- 1...Sa2
- 2.Qxe2#
- 1...Ba3
- 2.Sxg7#
- 1...Bb4
- 2.Sxg7#
- 1...Bc5
- 2.Sxg7#
- 1...Bd6
- 2.Sxg7#
- 1...Be7
- 2.Sxg7#
- 1...Sb3
- 2.Qxe2#
- 1...Sd3
- 2.Qxe2#
- 1...f5
- 2.Sf4#
- 1...fxe6!
- 1...fxe5
- 1.Rxg7?
- threat
- 2.Sxf6#
- 1...Bxg7
- 2.Sxg7#
- 1...fxe5
- 2.Sf6#
- 2.g4#
- 1...f5
- 2.Sf4#
- 2.Sf6#
- 1...Be7!
- threat
- 1.Qxe2?
- threat
- 2.Sf4#
- 2.Rg5#
- 1...fxe5
- 2.Rg5#
- 1...fxe6
- 2.Bg6#
- 2.Rg5#
- 1...Sd3
- 2.Rg3#
- 2.Rgd4#
- 2.Rge4#
- 2.Rgf4#
- 2.Rg5#
- 2.Rg6#
- 2.Rxg7#
- 1...g5
- 2.Sxf6#
- 2.Rxg5#
- 1...Sxe2!
- threat
- 1.Rg3?
- Keys
- 1.Rgd4!
- 1...fxe5
- 2.g4#
- 1...fxe6
- 2.Bg6#
- 1...Sa2
- 2.Qxe2#
- 1...Ba3
- 2.Sxg7#
- 1...Bb4
- 2.Sxg7#
- 1...Bc5
- 2.Sxg7#
- 1...Bd6
- 2.Sxg7#
- 1...Be7
- 2.Sxg7#
- 1...Sb3
- 2.Qxe2#
- 1...Sd3
- 2.Qxe2#
- 1...f5
- 2.Sf4#
- 1...g5
- 2.Sxf6#
- 1...g6
- 2.Sxf6#
- 1...fxe5
- 1.Rgd4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 2
- Sets
- B(h);N_GUARD::S(I),XP(g)
- S(b);N_GUARD::S(I)
- S(b);N_GUARD::S(I),XS(b)
- P(f);N_GUARD,XS(I)::B(A)
- P(g);N_GUARD::S(L),XP(d)
- Tries
- Try
- R(F);P_PINS(b)
- Vars
- P(f);N_GUARD,XS(I)::B(A)
- S(a);N_GUARD::QAB(B),XS(b)
- B(h);N_GUARD::S(I),XP(g)
- P(d);::S(I)
- P(g);N_GUARD::S(L),XP(d)
- Refutation
- P(d);XP(H)
- Try
- R(F);P_PINS(b)
- Vars
- P(d);XP(H)::P(C)
- S(a);N_GUARD::QAB(B),XS(b)
- B(h);N_GUARD::S(I),XP(g)
- P(d);::S(I)
- P(g);N_GUARD::S(L),XP(d)
- Refutation
- P(f);XS(I)
- Try
- R(F);P_PINS(b)
- Vars
- P(d);XP(H)::P(C)
- P(f);N_GUARD,XS(I)::B(A)
- S(a);N_GUARD::QAB(B),XS(b)
- B(h);N_GUARD::S(I),XP(g)
- P(g);N_GUARD::S(L),XP(d)
- Refutation
- P(d);
- Try
- R(F);P_PINS(b)
- Vars
- P(d);XP(H)::P(C)
- P(f);OGATE,XR(F)::B(A),XP(f)
- S(a);N_GUARD::QAB(B),XS(b)
- B(h);N_GUARD::S(I),XP(g)
- P(d);::S(I)
- Refutation
- P(f);XS(I)
- Try
- R(F);P_PINS(b),XP(g)
- Threat
- S(L),XP(d)
- Vars
- B(h);XR(F)::S(I),XB(h)
- Refutation
- B(h);
- Try
- Q(B);XS(b)
- Threat
- DUALS(2)
- Vars
- P(d);XP(H)::QAB(B)+R(F),DCHECK
- Refutation
- S(a);XQ(B)
- Try
- Actual
- R(F);P_PINS(b)
- Vars
- P(d);XP(H)::P(C)
- P(f);N_GUARD,XS(I)::B(A)
- S(a);N_GUARD::QAB(B),XS(b)
- B(h);N_GUARD::S(I),XP(g)
- P(d);::S(I)
- P(g);N_GUARD::S(L),XP(d)
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).