MESON Chess Problem Database
Problem Display
PID: 250469 (3RK3/5n2/n1N1kbQ1/1N1pp3/8/7b/8/6B1 w - - 0 1)
Dikusarov, Andrey Nikolayovich
Uralski Problemist, 2009
#2
6 + 7
SOLUTION
- SOUND
- Sets
- 1...Bf1
- 2.Qg4#
- 1...Bg2
- 2.Qg4#
- 1...Bg4
- 2.Qxg4#
- 1...Bf5
- 2.Qxf7#
- 1...Sb4
- 2.Sc7#
- 1...Sc5
- 2.Sc7#
- 1...Sc7+
- 2.Sxc7#
- 1...Sb8
- 2.Sc7#
- 1...Sg5
- 2.Rd6#
- 1...Sd6+
- 2.Rxd6#
- 1...Sh6
- 2.Rd6#
- 1...Sxd8
- 2.Sxd8#
- 1...Sh8
- 2.Rd6#
- 1...e4
- 2.Sbd4#
- 1...Bf1
- Tries
- 1.Bf2?
- 1...Sc7+
- 2.Sxc7#
- 1...Sd6+
- 2.Rxd6#
- 1...Sxd8
- 2.Sxd8#
- 1...Bf1
- 2.Qg4#
- 1...Bg2
- 2.Qg4#
- 1...Bg4
- 2.Qxg4#
- 1...Bf5
- 2.Qxf7#
- 1...Sb4
- 2.Sc7#
- 1...Sc5
- 2.Sc7#
- 1...Sb8
- 2.Sc7#
- 1...Sg5
- 2.Rd6#
- 1...Sh6
- 2.Rd6#
- 1...Sh8
- 2.Rd6#
- 1...e4
- 2.Sbd4#
- 1...d4!
- 1...Sc7+
- 1.Bh2?
- 1...Sc7+
- 2.Sxc7#
- 1...Sd6+
- 2.Rxd6#
- 1...Sxd8
- 2.Sxd8#
- 1...Bf1
- 2.Qg4#
- 1...Bg2
- 2.Qg4#
- 1...Bg4
- 2.Qxg4#
- 1...Bf5
- 2.Qxf7#
- 1...Sb4
- 2.Sc7#
- 1...Sc5
- 2.Sc7#
- 1...Sb8
- 2.Sc7#
- 1...Sg5
- 2.Rd6#
- 1...Sh6
- 2.Rd6#
- 1...Sh8
- 2.Rd6#
- 1...e4
- 2.Sbd4#
- 2.Scd4#
- 1...d4!
- 1...Sc7+
- 1.Be3?
- 1...Sc7+
- 2.Sxc7#
- 1...Sd6+
- 2.Rxd6#
- 1...Sxd8
- 2.Sxd8#
- 1...Bf1
- 2.Qg4#
- 1...Bg2
- 2.Qg4#
- 1...Bg4
- 2.Qxg4#
- 1...Bf5
- 2.Qxf7#
- 1...Sb4
- 2.Sc7#
- 1...Sc5
- 2.Sc7#
- 1...Sb8
- 2.Sc7#
- 1...Sg5
- 2.Rd6#
- 1...Sh6
- 2.Rd6#
- 1...Sh8
- 2.Rd6#
- 1...e4
- 2.Sbd4#
- 1...d4!
- 1...Sc7+
- 1.Bc5?
- 1...Sc7+
- 2.Sxc7#
- 1...Sd6+
- 2.Rxd6#
- 1...Sxc5
- 2.Sc7#
- 1...Sxd8
- 2.Sxd8#
- 1...Bf1
- 2.Qg4#
- 1...Bg2
- 2.Qg4#
- 1...Bg4
- 2.Qxg4#
- 1...Bf5
- 2.Qxf7#
- 1...Sb4
- 2.Sc7#
- 1...Sb8
- 2.Sc7#
- 1...Sg5
- 2.Rd6#
- 1...Sh6
- 2.Rd6#
- 1...Sh8
- 2.Rd6#
- 1...e4
- 2.Sbd4#
- 1...d4!
- 1...Sc7+
- 1.Bb6?
- 1...Sc7+
- 2.Sxc7#
- 1...Sd6+
- 2.Rxd6#
- 1...Sxd8
- 2.Sxd8#
- 1...Bf1
- 2.Qg4#
- 1...Bg2
- 2.Qg4#
- 1...Bg4
- 2.Qxg4#
- 1...Bf5
- 2.Qxf7#
- 1...Sb4
- 2.Sc7#
- 1...Sc5
- 2.Sc7#
- 1...Sb8
- 2.Sc7#
- 1...Sg5
- 2.Rd6#
- 1...Sh6
- 2.Rd6#
- 1...Sh8
- 2.Rd6#
- 1...e4
- 2.Sbd4#
- 1...d4!
- 1...Sc7+
- 1.Ba7?
- 1...Sc7+
- 2.Sxc7#
- 1...Sd6+
- 2.Rxd6#
- 1...Sxd8
- 2.Sxd8#
- 1...Bf1
- 2.Qg4#
- 1...Bg2
- 2.Qg4#
- 1...Bg4
- 2.Qxg4#
- 1...Bf5
- 2.Qxf7#
- 1...Sb4
- 2.Sc7#
- 1...Sc5
- 2.Sc7#
- 1...Sb8
- 2.Sc7#
- 1...Sg5
- 2.Rd6#
- 1...Sh6
- 2.Rd6#
- 1...Sh8
- 2.Rd6#
- 1...e4
- 2.Sbd4#
- 1...d4!
- 1...Sc7+
- 1.Rd7?
- threat
- 2.Re7#
- 1...Sc7+
- 2.Sxc7#
- 1...Sd6+
- 2.Rxd6#
- 1...d4!
- threat
- 1.Qh5?
- threat
- 2.Qxh3#
- 1...Sc7+
- 2.Sxc7#
- 1...Sd6+
- 2.Rxd6#
- 1...Bxd8
- 2.Qxf7#
- 1...Bh4
- 2.Qxf7#
- 1...Bg5
- 2.Qxf7#
- 1...Be7
- 2.Qxf7#
- 1...Bg7
- 2.Qxf7#
- 1...Bh8
- 2.Qxf7#
- 1...Bf1
- 2.Qg4#
- 1...Bg2
- 2.Qg4#
- 1...Bg4
- 2.Qxg4#
- 1...Bf5
- 2.Qxf7#
- 1...Sh6
- 2.Rd6#
- 1...Sg5!
- threat
- 1.Bf2?
- Keys
- 1.Bd4!
- 1...Sc7+
- 2.Sxc7#
- 1...Sd6+
- 2.Rxd6#
- 1...Sxd8
- 2.Sxd8#
- 1...exd4
- 2.Sbxd4#
- 1...Bf1
- 2.Qg4#
- 1...Bg2
- 2.Qg4#
- 1...Bg4
- 2.Qxg4#
- 1...Bf5
- 2.Qxf7#
- 1...Sb4
- 2.Sc7#
- 1...Sc5
- 2.Sc7#
- 1...Sb8
- 2.Sc7#
- 1...Sg5
- 2.Rd6#
- 1...Sh6
- 2.Rd6#
- 1...Sh8
- 2.Rd6#
- 1...e4
- 2.Qxf6#
- 1...Sc7+
- 1.Bd4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(a);N_GUARD::QAB(D)
- B(a);N_GUARD::QAB(D),XB(a)
- B(a);SBLOCK::QAB1(D),XS(g)
- S(d);N_GUARD::S(B)
- S(d);CHECK,N_GUARD::S(B),XS(d)
- S(g);N_GUARD::R1(E)
- S(g);CHECK,N_GUARD::R1(E),XS(g)
- S(g);XR(E)::S(C),XS(g)
- P(c);N_GUARD::S(B)
- Tries
- Try
- B(A);
- Vars
- S(d);CHECK,N_GUARD::S(B),XS(d)
- S(g);CHECK,N_GUARD::R1(E),XS(g)
- S(g);XR(E)::S(C),XS(g)
- B(a);N_GUARD::QAB(D)
- B(a);N_GUARD::QAB(D),XB(a)
- B(a);SBLOCK::QAB1(D),XS(g)
- S(d);N_GUARD::S(B)
- S(g);N_GUARD::R1(E)
- P(c);N_GUARD::S(B)
- Refutation
- P(b);
- Try
- B(A);
- Vars
- S(d);CHECK,N_GUARD::S(B),XS(d)
- S(g);CHECK,N_GUARD::R1(E),XS(g)
- S(g);XR(E)::S(C),XS(g)
- B(a);N_GUARD::QAB(D)
- B(a);N_GUARD::QAB(D),XB(a)
- B(a);SBLOCK::QAB1(D),XS(g)
- S(d);N_GUARD::S(B)
- S(g);N_GUARD::R1(E)
- Refutation
- P(b);
- Try
- B(A);
- Vars
- S(d);CHECK,N_GUARD::S(B),XS(d)
- S(g);CHECK,N_GUARD::R1(E),XS(g)
- S(g);XR(E)::S(C),XS(g)
- B(a);N_GUARD::QAB(D)
- B(a);N_GUARD::QAB(D),XB(a)
- B(a);SBLOCK::QAB1(D),XS(g)
- S(d);N_GUARD::S(B)
- S(g);N_GUARD::R1(E)
- P(c);N_GUARD::S(B)
- Refutation
- P(b);
- Try
- B(A);
- Vars
- S(d);CHECK,N_GUARD::S(B),XS(d)
- S(g);CHECK,N_GUARD::R1(E),XS(g)
- S(d);N_GUARD,XB(A)::S(B)
- S(g);XR(E)::S(C),XS(g)
- B(a);N_GUARD::QAB(D)
- B(a);N_GUARD::QAB(D),XB(a)
- B(a);SBLOCK::QAB1(D),XS(g)
- S(d);N_GUARD::S(B)
- S(g);N_GUARD::R1(E)
- P(c);N_GUARD::S(B)
- Refutation
- P(b);
- Try
- B(A);
- Vars
- S(d);CHECK,N_GUARD::S(B),XS(d)
- S(g);CHECK,N_GUARD::R1(E),XS(g)
- S(g);XR(E)::S(C),XS(g)
- B(a);N_GUARD::QAB(D)
- B(a);N_GUARD::QAB(D),XB(a)
- B(a);SBLOCK::QAB1(D),XS(g)
- S(d);N_GUARD::S(B)
- S(g);N_GUARD::R1(E)
- P(c);N_GUARD::S(B)
- Refutation
- P(b);
- Try
- B(A);
- Vars
- S(d);CHECK,N_GUARD::S(B),XS(d)
- S(g);CHECK,N_GUARD::R1(E),XS(g)
- S(g);XR(E)::S(C),XS(g)
- B(a);N_GUARD::QAB(D)
- B(a);N_GUARD::QAB(D),XB(a)
- B(a);SBLOCK::QAB1(D),XS(g)
- S(d);N_GUARD::S(B)
- S(g);N_GUARD::R1(E)
- P(c);N_GUARD::S(B)
- Refutation
- P(b);
- Try
- R(E);
- Threat
- R1(E)
- Vars
- S(d);CHECK,N_GUARD::S(B),XS(d)
- S(g);CHECK,N_GUARD::R1(E),XS(g)
- Refutation
- P(b);
- Try
- Q(D);N_PINB(f)
- Threat
- QAB(D),XB(a)
- Vars
- S(d);CHECK,N_GUARD::S(B),XS(d)
- S(g);CHECK,N_GUARD::R1(E),XS(g)
- B(f);XR(E)::QAB1(D),XS(g)
- B(f);::QAB1(D),XS(g)
- B(a);N_GUARD::QAB(D)
- B(a);N_GUARD::QAB(D),XB(a)
- B(a);SBLOCK::QAB1(D),XS(g)
- S(g);N_GUARD::R1(E)
- Refutation
- S(g);
- Try
- Actual
- B(A);
- Vars
- S(d);CHECK,N_GUARD::S(B),XS(d)
- S(g);CHECK,N_GUARD::R1(E),XS(g)
- S(g);XR(E)::S(C),XS(g)
- P(c);XB(A)::S(B),XP(c)
- B(a);N_GUARD::QAB(D)
- B(a);N_GUARD::QAB(D),XB(a)
- B(a);SBLOCK::QAB1(D),XS(g)
- S(d);N_GUARD::S(B)
- S(g);N_GUARD::R1(E)
- P(c);::QAR1(D),XB(f)
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).