MESON Chess Problem Database
Problem Display
PID: 93775 (8/3pp3/N1pkPp2/5P2/Qp6/b1B3p1/1p1p2B1/1K6 w - - 0 1)
Jancek, Jan
Sachove umeni (Ceskoslovensky sach), 1953
#2
7 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...d1Q+
- 2.Qxd1#
- 1...d1S
- 2.Qxd1#
- 1...d1B
- 2.Qxd1#
- 1...d1R+
- 2.Qxd1#
- 1...bxc3
- 2.Qd4#
- 2.Qf4#
- 1...b3
- 2.Qd4#
- 2.Qf4#
- 1...c5
- 2.Qxd7#
- 1...dxe6
- 2.Qxc6#
- 1...d1Q+
- Tries
- 1.Bh1?
- 1...d1Q+
- 2.Qxd1#
- 1...d1R+
- 2.Qxd1#
- 1...bxc3
- 2.Qd4#
- 2.Qf4#
- 1...dxe6
- 2.Qxc6#
- 1...d1S
- 2.Qxd1#
- 1...d1B
- 2.Qxd1#
- 1...b3
- 2.Qd4#
- 2.Qf4#
- 1...c5
- 2.Qxd7#
- 1...g2!
- 1...d1Q+
- 1.Bf3?
- 1...d1Q+
- 2.Qxd1#
- 1...d1R+
- 2.Qxd1#
- 1...bxc3
- 2.Qd4#
- 2.Qf4#
- 1...dxe6
- 2.Qxc6#
- 1...d1S
- 2.Qxd1#
- 1...d1B
- 2.Qxd1#
- 1...b3
- 2.Qd4#
- 2.Qf4#
- 1...c5
- 2.Qxd7#
- 1...g2!
- 1...d1Q+
- 1.Be4?
- 1...d1Q+
- 2.Qxd1#
- 1...d1R+
- 2.Qxd1#
- 1...bxc3
- 2.Qd4#
- 1...dxe6
- 2.Qxc6#
- 1...d1S
- 2.Qxd1#
- 1...d1B
- 2.Qxd1#
- 1...b3
- 2.Qd4#
- 1...c5
- 2.Qxd7#
- 1...g2!
- 1...d1Q+
- 1.Bxb2?
- 1...d1Q+
- 2.Qxd1#
- 1...d1R+
- 2.Qxd1#
- 1...dxe6
- 2.Qxc6#
- 1...d1S
- 2.Qxd1#
- 1...d1B
- 2.Qxd1#
- 1...b3
- 2.Qd4#
- 2.Qf4#
- 1...c5
- 2.Qxd7#
- 1...Bxb2!
- 1...d1Q+
- 1.Bxf6?
- 1...d1Q+
- 2.Qxd1#
- 1...d1R+
- 2.Qxd1#
- 1...dxe6
- 2.Qxc6#
- 1...d1S
- 2.Qxd1#
- 1...d1B
- 2.Qxd1#
- 1...b3
- 2.Qd4#
- 2.Qf4#
- 1...c5
- 2.Qxd7#
- 1...exf6!
- 1...d1Q+
- 1.Qc2?
- threat
- 2.Qd3#
- 2.Qxd2#
- 1...d1Q+
- 2.Qxd1#
- 1...d1R+
- 2.Qxd1#
- 1...d1S
- 2.Qxd1#
- 2.Qd3#
- 2.Qd2#
- 1...d1B
- 2.Qxd1#
- 2.Qd3#
- 2.Qd2#
- 1...bxc3!
- threat
- 1.Qxb4+?
- 1...c5
- 2.Qf4#
- 2.Qb6#
- 2.Qb8#
- 1...Bxb4!
- 1...c5
- 1.exd7?
- threat
- 2.Qxc6#
- 2.d8Q#
- 2.d8R#
- 1...d1Q+
- 2.Qxd1#
- 1...d1R+
- 2.Qxd1#
- 1...bxc3
- 2.Qd4#
- 1...e5
- 2.d8Q#
- 1...e6
- 2.d8Q#
- 1...d1S
- 2.Qxd1#
- 2.Qxc6#
- 2.d8Q#
- 2.d8R#
- 1...d1B
- 2.Qxd1#
- 2.Qxc6#
- 2.d8Q#
- 2.d8R#
- 1...b3
- 2.Qxc6#
- 2.Qd4#
- 2.d8Q#
- 2.d8R#
- 1...c5
- 2.Qc6#
- 2.d8Q#
- 2.d8R#
- 1...Kxd7!
- threat
- 1.Bh1?
- Keys
- 1.Qb3!
- 1...d1Q+
- 2.Qxd1#
- 1...d1R+
- 2.Qxd1#
- 1...bxc3
- 2.Qb8#
- 1...dxe6
- 2.Qxe6#
- 1...d1S
- 2.Qxd1#
- 1...d1B
- 2.Qxd1#
- 1...c5
- 2.Qd5#
- 1...d1Q+
- 1.Qb3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- P(b);CHECK,OGATEB::QAR(D),XQ(b)
- P(b);OGATEB::QAR(D),XS(b)
- P(b);OGATEB::QAR(D),XB(b)
- P(b);CHECK,OGATEB::QAR(D),XR(b)
- P(f);OGATE::QAR1(D),XP(i)
- P(i);N_GUARD,XP(G)::QAR1(D),XP(f)
- Tries
- Try
- B(B);
- Vars
- P(b);CHECK,OGATEB::QAR(D),XQ(b)
- P(b);CHECK,OGATEB::QAR(D),XR(b)
- P(i);N_GUARD,XP(G)::QAR1(D),XP(f)
- P(b);OGATEB::QAR(D),XS(b)
- P(b);OGATEB::QAR(D),XB(b)
- P(f);OGATE::QAR1(D),XP(i)
- Refutation
- P(d);
- Try
- B(B);
- Vars
- P(b);CHECK,OGATEB::QAR(D),XQ(b)
- P(b);CHECK,OGATEB::QAR(D),XR(b)
- P(i);N_GUARD,XP(G)::QAR1(D),XP(f)
- P(b);OGATEB::QAR(D),XS(b)
- P(b);OGATEB::QAR(D),XB(b)
- P(f);OGATE::QAR1(D),XP(i)
- Refutation
- P(d);
- Try
- B(B);
- Vars
- P(b);CHECK,OGATEB::QAR(D),XQ(b)
- P(b);CHECK,OGATEB::QAR(D),XR(b)
- P(e);OGATE,XB(C)::QAR2(D)
- P(i);N_GUARD,XP(G)::QAR1(D),XP(f)
- P(b);OGATEB::QAR(D),XS(b)
- P(b);OGATEB::QAR(D),XB(b)
- P(e);OGATE::QAR2(D)
- P(f);OGATE::QAR1(D),XP(i)
- Refutation
- P(d);
- Try
- B(C);XP(a)
- Vars
- P(b);CHECK,OGATEB::QAR(D),XQ(b)
- P(b);CHECK,OGATEB::QAR(D),XR(b)
- P(i);N_GUARD,XP(G)::QAR1(D),XP(f)
- P(b);OGATEB::QAR(D),XS(b)
- P(b);OGATEB::QAR(D),XB(b)
- P(f);OGATE::QAR1(D),XP(i)
- Refutation
- B(c);XB(C)
- Try
- B(C);XP(h)
- Vars
- P(b);CHECK,OGATEB::QAR(D),XQ(b)
- P(b);CHECK,OGATEB::QAR(D),XR(b)
- P(i);N_GUARD,XP(G)::QAR1(D),XP(f)
- P(b);OGATEB::QAR(D),XS(b)
- P(b);OGATEB::QAR(D),XB(b)
- P(f);OGATE::QAR1(D),XP(i)
- Refutation
- P(j);XB(C)
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- P(b);CHECK,OGATEB::QAR(D),XQ(b)
- P(b);CHECK,OGATEB::QAR(D),XR(b)
- Refutation
- P(e);XB(C)
- Try
- Q(D);CHECK,XP(e)
- Refutation
- B(c);XQ(D)
- Try
- P(G);XP(i)
- Threat
- DUALS(3)
- Vars
- P(b);CHECK,OGATEB::QAR(D),XQ(b)
- P(b);CHECK,OGATEB::QAR(D),XR(b)
- P(e);OGATE,XB(C)::QAR2(D)
- P(j);::P=Q
- Refutation
- K(g);P-FLIGHT,P_SPINP(f),XP(G)
- Try
- Actual
- Q(D);
- Vars
- P(b);CHECK,OGATEB::QAR(D),XQ(b)
- P(b);CHECK,OGATEB::QAR(D),XR(b)
- P(e);OGATE,XB(C)::QAB(D)
- P(i);OGATE,XP(G)::QAR1(D),XP(i)
- P(b);OGATEB::QAR(D),XS(b)
- P(b);OGATEB::QAR(D),XB(b)
- P(f);N_GUARD::QAR1(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).