MESON Chess Problem Database
Problem Display
PID: 7675 (1NQ2b1q/8/8/RB3p1r/3kPB2/5RN1/b1p2n2/Kn6 w - - 0 1)
Udartsev, Valentin Filipovich
4th Prize, Slovensky Dennik, 1992
#2
9 + 9
SOLUTION
- SOUND
- Sets
- 1...Qe5
- 2.Be3#
- 1...Bc4
- 2.Qxc4#
- 1...Bc5
- 2.Sc6#
- 1...Sd2
- 2.Qc3#
- 1...Sa3
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...Sd1
- 2.Rd3#
- 1...Sh1
- 2.Rd3#
- 1...Sd3
- 2.Rxd3#
- 1...Sh3
- 2.Rd3#
- 1...Sxe4
- 2.Rd3#
- 1...Sg4
- 2.Rd3#
- 1...Qe5
- Tries
- 1.Bf1?
- threat
- 2.Sc6#
- 2.Be3#
- 1...c1B
- 2.Sc6#
- 1...c1R
- 2.Be3#
- 1...Qf6
- 2.Be3#
- 1...Qh6
- 2.Be5#
- 1...Rh6
- 2.Be3#
- 1...Bc4
- 2.Sc6#
- 2.Qxc4#
- 1...Bd5
- 2.Rxd5#
- 1...Bc5
- 2.Sc6#
- 2.Qxc5#
- 1...Bh6
- 2.Sc6#
- 2.Qc5#
- 1...Sd1
- 2.Sc6#
- 2.Rd3#
- 1...Sd3
- 2.Be3#
- 2.Rxd3#
- 1...Sg4
- 2.Sc6#
- 2.Rd3#
- 1...c1Q!
- threat
- 1.Be2?
- threat
- 2.Sc6#
- 2.Be3#
- 1...c1B
- 2.Sc6#
- 1...c1R
- 2.Be3#
- 1...Qf6
- 2.Be3#
- 1...Qh6
- 2.Be5#
- 1...Rh6
- 2.Be3#
- 1...Bc4
- 2.Sc6#
- 2.Qxc4#
- 1...Bd5
- 2.Rxd5#
- 1...Bc5
- 2.Sc6#
- 2.Qxc5#
- 1...Bh6
- 2.Sc6#
- 2.Qc5#
- 1...Sd1
- 2.Sc6#
- 2.Rd3#
- 1...Sd3
- 2.Be3#
- 2.Rxd3#
- 1...Sg4
- 2.Sc6#
- 2.Rd3#
- 1...c1Q!
- threat
- 1.Bd3?
- threat
- 2.Se2#
- 1...Sxd3
- 2.Be3#
- 1...Sc3
- 2.Sc6#
- 1...c1S!
- threat
- 1.Ba6?
- threat
- 2.Sc6#
- 2.Be3#
- 1...c1B
- 2.Sc6#
- 1...c1R
- 2.Be3#
- 1...Qf6
- 2.Be3#
- 1...Qh6
- 2.Be5#
- 1...Rh6
- 2.Be3#
- 1...Bc4
- 2.Sc6#
- 2.Qxc4#
- 1...Bd5
- 2.Rxd5#
- 1...Bc5
- 2.Sc6#
- 2.Qxc5#
- 1...Bh6
- 2.Sc6#
- 2.Qc5#
- 1...Sd1
- 2.Sc6#
- 2.Rd3#
- 1...Sd3
- 2.Be3#
- 2.Rxd3#
- 1...Sg4
- 2.Sc6#
- 2.Rd3#
- 1...c1Q!
- threat
- 1.Ra4+?
- 1...Bc4
- 2.Rxc4#
- 2.Qxc4#
- 1...Bb4!
- 1...Bc4
- 1.Qxc2?
- threat
- 2.Se2#
- 2.Sc6#
- 2.Qxf2#
- 1...Sxe4
- 2.Rd3#
- 1...Bc4
- 2.Qxf2#
- 2.Qxc4#
- 1...Sc3
- 2.Qxf2#
- 2.Qxc3#
- 1...Qf6
- 2.Se2#
- 2.Qxf2#
- 1...Qh6
- 2.Se2#
- 2.Qxf2#
- 1...Rh2
- 2.Se2#
- 2.Sxf5#
- 2.Sc6#
- 1...Rh6
- 2.Se2#
- 2.Sxf5#
- 2.Qxf2#
- 1...Bd5
- 2.Se2#
- 2.Qxf2#
- 1...Sd2
- 2.Se2#
- 2.Sc6#
- 2.Qc3#
- 1...Sd1
- 2.Se2#
- 2.Sc6#
- 2.Rd3#
- 1...Sh1
- 2.Se2#
- 2.Sc6#
- 2.Rd3#
- 1...Sd3
- 2.Sc6#
- 2.Rxd3#
- 1...Sh3
- 2.Se2#
- 2.Sc6#
- 2.Rd3#
- 1...Sg4
- 2.Se2#
- 2.Sc6#
- 2.Rd3#
- 1...fxe4!
- threat
- 1.Qc5+?
- 1...Bxc5
- 2.Sc6#
- 1...Kxc5+!
- 1...Bxc5
- 1.Qc6?
- threat
- 2.Se2#
- 1...Bc4
- 2.Qxc4#
- 1...Bd5
- 2.Qxd5#
- 1...Sc3
- 2.Qxc3#
- 1...c1S!
- threat
- 1.Bf1?
- Keys
- 1.Bc4!
- threat
- 2.Rd5#
- 1...Bxc4
- 2.Sc6#
- 1...fxe4
- 2.Se2#
- 1...Bc5
- 2.Qxc5#
- 1...Sd3
- 2.Rxd3#
- 1...Qe5
- 2.Bxe5#
- 1...Qg8
- 2.Be5#
- 1...Sc3
- 2.Be3#
- threat
- 1.Bc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 4
- ADDED MATES = 2
- REMOVED MATES = 7
- Sets
- Q(i);SBLOCK::B(E)
- B(b);N_GUARD::QAR1(I),XB(b)
- B(h);SBLOCK::S(H)
- S(a);N_GUARD::QAB1(I)
- S(a);N_GUARD::QAB1(I),XS(a)
- S(d);N_GUARD::R1(B)
- S(d);N_GUARD::R1(B),XS(d)
- S(d);N_GUARD,XP(D)::R1(B)
- Tries
- Try
- B(G);
- Threat
- DUALS(2)
- Vars
- P(c);::S(H)
- P(c);::B(E)
- Q(i);::B(E)
- Q(i);N_GUARD::B(E)
- R(g);::B(E)
- B(b);N_GUARD::R1(F),XB(b)
- Refutation
- P(c);
- Try
- B(G);
- Threat
- DUALS(2)
- Vars
- P(c);::S(H)
- P(c);::B(E)
- Q(i);::B(E)
- Q(i);N_GUARD::B(E)
- R(g);::B(E)
- B(b);N_GUARD::R1(F),XB(b)
- Refutation
- P(c);
- Try
- B(G);
- Threat
- S(C)
- Vars
- S(d);SBLOCK,XB(G)::B(E)
- S(a);SBLOCK::S(H)
- Refutation
- P(c);
- Try
- B(G);
- Threat
- DUALS(2)
- Vars
- P(c);::S(H)
- P(c);::B(E)
- Q(i);::B(E)
- Q(i);N_GUARD::B(E)
- R(g);::B(E)
- B(b);N_GUARD::R1(F),XB(b)
- Refutation
- P(c);
- Try
- R(F);CHECK
- Refutation
- B(h);P_SPINB(h)
- Try
- Q(I);XP(c)
- Threat
- DUALS(3)
- Vars
- S(d);N_GUARD,XP(D)::R1(B)
- Refutation
- P(f);XP(D)
- Try
- Q(I);CHECK
- Vars
- B(h);SBLOCK,XQ(I)::S(H)
- Refutation
- K(e);CHECK,S_FLIGHT,XQ(I)
- Try
- Q(I);
- Threat
- S(C)
- Vars
- B(b);N_GUARD::QAR1(I),XB(b)
- S(a);N_GUARD::QAB1(I),XS(a)
- Refutation
- P(c);
- Try
- Actual
- B(G);
- Threat
- R1(F)
- Vars
- B(b);SBLOCK,XB(G)::S(H)
- P(f);SBLOCK,XP(D)::S(C)
- B(h);N_GUARD::QAB1(I),XB(h)
- S(d);N_GUARD::R1(B),XS(d)
- Q(i);N_GUARD::B(E),XQ(i)
- Q(i);N_GUARD::B(E)
- S(a);SBLOCK::B(E)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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