MESON Chess Problem Database
Problem Display
PID: 261061 (8/2Q5/1p6/1K6/2Bp4/1Nkq2bR/R3P3/8 w - - 0 1)
Lipton, Michael
Neue Zurcher Zeitung, 2011
(First published on Sat Jul 9 2011)
#2
7 + 5
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Qb1
- 2.Bd5#
- 2.Be6#
- 2.Bf7#
- 2.Bg8#
- 1...Qc2
- 2.Bd5#
- 2.Be6#
- 2.Bf7#
- 2.Bg8#
- 1...Qxc4+
- 2.Qxc4#
- 1...Qe4
- 2.Bd5#
- 1...Qf5+
- 2.Bd5#
- 1...Qg6
- 2.Be6#
- 1...Qh7
- 2.Bf7#
- 1...Qd1
- 2.Bd5#
- 2.Be6#
- 2.Bf7#
- 2.Bg8#
- 1...Qd2
- 2.Bd5#
- 2.Be6#
- 2.Bf7#
- 2.Bg8#
- 1...Be1
- 2.Rxd3#
- 1...Bf2
- 2.Rxd3#
- 1...Bh2
- 2.Rxd3#
- 1...Bf4
- 2.Rxd3#
- 1...Bh4
- 2.Rxd3#
- 1...Be5
- 2.Rxd3#
- 1...Bd6
- 2.Rxd3#
- 1...Bxc7
- 2.Rxd3#
- 1...Qb1
- Tries
- 1.Sd2?
- 1...Qb1+
- 2.Sxb1#
- 2.Bb3#
- 1...Qxc4+
- 2.Qxc4#
- 1...Qf5+
- 2.Bd5#
- 1...Qxe2
- 2.Sb1#
- 2.Bxe2#
- 1...Qxd2
- 2.Bd5#
- 2.Be6#
- 2.Bf7#
- 2.Bg8#
- 1...Bxc7
- 2.Sb1#
- 2.Se4#
- 2.Rxd3#
- 1...Qe4
- 2.Sxe4#
- 2.Bd5#
- 1...Qg6
- 2.Be6#
- 1...Qh7
- 2.Bf7#
- 1...Qe3
- 2.Sb1#
- 1...Qf3
- 2.Sb1#
- 1...Be1
- 2.Sb1#
- 2.Se4#
- 2.Bxd3#
- 2.Rxd3#
- 1...Bf2
- 2.Sb1#
- 2.Se4#
- 2.Bxd3#
- 2.Rxd3#
- 1...Bh2
- 2.Sb1#
- 2.Se4#
- 2.Rxd3#
- 1...Bf4
- 2.Sb1#
- 2.Se4#
- 2.Rxd3#
- 1...Bh4
- 2.Sb1#
- 2.Se4#
- 2.Bxd3#
- 2.Rxd3#
- 1...Be5
- 2.Sb1#
- 2.Se4#
- 2.Rxd3#
- 1...Bd6
- 2.Sb1#
- 2.Se4#
- 2.Rxd3#
- 1...Qc2!
- 1...Qb1+
- 1.Bxd3+?
- 1...Kxb3
- 2.Qc2#
- 2.Qc4#
- 1...Bxc7!
- 1...Kxb3
- 1.Rxg3?
- threat
- 2.Rxd3#
- 1...Qe3
- 2.Bd5#
- 2.Be6#
- 2.Bf7#
- 2.Bg8#
- 1...Qf3
- 2.Bd5#
- 2.Be6#
- 2.Bf7#
- 2.Bg8#
- 1...Qxg3!
- threat
- 1.Qxg3?
- threat
- 2.Qe1#
- 2.Qxd3#
- 1...Qe3
- 2.Qe1#
- 1...Qf3
- 2.Qe1#
- 1...Qxg3!
- threat
- 1.Qc6?
- 1...Qxc4+
- 2.Qxc4#
- 1...Qf5+
- 2.Bd5#
- 1...Qe3
- 2.Bd5#
- 2.Be6#
- 2.Bf7#
- 2.Bg8#
- 1...Qb1
- 2.Bd5#
- 2.Be6#
- 2.Bf7#
- 2.Bg8#
- 1...Qc2
- 2.Bd5#
- 2.Be6#
- 2.Bf7#
- 2.Bg8#
- 1...Qe4
- 2.Bd5#
- 1...Qg6
- 2.Be6#
- 1...Qh7
- 2.Bd5#
- 2.Be6#
- 2.Bf7#
- 2.Bg8#
- 1...Qd1
- 2.Bd5#
- 2.Be6#
- 2.Bf7#
- 2.Bg8#
- 1...Qd2
- 2.Bd5#
- 2.Be6#
- 2.Bf7#
- 2.Bg8#
- 1...Qf3
- 2.Bd5#
- 1...Be1
- 2.Rxd3#
- 1...Bf2
- 2.Rxd3#
- 1...Bh2
- 2.Rxd3#
- 1...Bf4
- 2.Rxd3#
- 1...Bh4
- 2.Rxd3#
- 1...Be5
- 2.Rxd3#
- 1...Bd6
- 2.Rxd3#
- 1...Bc7
- 2.Rxd3#
- 1...Bb8
- 2.Rxd3#
- 1...Qxe2!
- 1...Qxc4+
- 1.Sd2?
- Keys
- 1.Sa1!
- 1...Qb1+
- 2.Bb3#
- 1...Qxc4+
- 2.Qxc4#
- 1...Qf5+
- 2.Bd5#
- 1...Qxe2
- 2.Bxe2#
- 1...Bxc7
- 2.Rc2#
- 2.Rxd3#
- 1...Qc2
- 2.Rxc2#
- 1...Qe4
- 2.Bd5#
- 1...Qg6
- 2.Be6#
- 1...Qh7
- 2.Bf7#
- 1...Qd1
- 2.Bb3#
- 2.Bd5#
- 2.Be6#
- 2.Bf7#
- 2.Bg8#
- 1...Qd2
- 2.Bb3#
- 2.Bd5#
- 2.Be6#
- 2.Bf7#
- 2.Bg8#
- 1...Qe3
- 2.Rc2#
- 1...Qf3
- 2.Rc2#
- 1...Be1
- 2.Bxd3#
- 2.Rc2#
- 2.Rxd3#
- 1...Bf2
- 2.Bxd3#
- 2.Rc2#
- 2.Rxd3#
- 1...Bh2
- 2.Rc2#
- 2.Rxd3#
- 1...Bf4
- 2.Rc2#
- 2.Rxd3#
- 1...Bh4
- 2.Bxd3#
- 2.Rc2#
- 2.Rxd3#
- 1...Be5
- 2.Rc2#
- 2.Rxd3#
- 1...Bd6
- 2.Rc2#
- 2.Rxd3#
- 1...Qb1+
- 1.Sa1!
This is after
After Bottacchi.
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 8
- Sets
- Q(b);CHECK,OGATE,P_SPINB(c),P_SPINQ(b),XB(E)::QAR1(G),XQ(b)
- Q(b);N_PINB(E),P_SPINB(c)::QAR(G)+B(E)
- Q(b);CHECK,N_PINB(E),P_SPINB(c)::QAR(G)+B(E)
- B(c);OGATE,P_SPINQ(b)::R1(D),XQ(b)
- B(c);OGATE,P_SPINQ(b),XQ(G)::R1(D),XQ(b)
- Tries
- Try
- S(C);
- Vars
- Q(b);CHECK,OGATE,P_SPINB(c),P_SPINQ(b),XB(E)::QAR1(G),XQ(b)
- Q(b);CHECK,N_PINB(E),P_SPINB(c)::QAR(G)+B(E)
- Q(b);N_PINB(E),P_SPINB(c)::QAR(G)+B(E)
- Q(b);N_GUARD,N_PINB(E)::S(C)
- Refutation
- Q(b);N_PINB(E),P_SPINB(c)
- Try
- B(E);CHECK,N_SPINB(E),XQ(b)
- Refutation
- B(c);XQ(G)
- Try
- R(D);P_PINQ(b),XB(c)
- Threat
- R1(D),XQ(b)
- Refutation
- Q(b);N_PINB(E),N_SPINQ(b),XR(D)
- Try
- Q(G);P_PINQ(b),XB(c)
- Threat
- DUALS(2)
- Vars
- Q(b);N_PINB(E)::QAB(G)
- Refutation
- Q(b);N_PINB(E),XQ(G)
- Try
- Q(G);
- Vars
- Q(b);CHECK,OGATE,P_SPINB(c),P_SPINQ(b),XB(E)::QAR1(G),XQ(b)
- Q(b);CHECK,N_PINB(E),P_SPINB(c)::QAR(G)+B(E)
- Q(b);N_PINB(E),P_SPINB(c)::QAR(G)+B(E)
- Q(b);N_PINB(E)::QAR(G)+B(E)
- B(c);OGATE,P_SPINQ(b)::R1(D),XQ(b)
- Refutation
- Q(b);P_SPINB(c),XP(B)
- Try
- Actual
- S(C);
- Vars
- Q(b);CHECK,N_PINB(E),P_SPINB(c)::QAR(G)+B(E)
- Q(b);CHECK,OGATE,P_SPINB(c),P_SPINQ(b),XB(E)::QAR1(G),XQ(b)
- Q(b);P_SPINB(c),XP(B)::QAR(G)+B(E),XQ(b)
- Q(b);N_GUARD,N_PINB(E),P_SPINB(c)::R1(A),XQ(b)
- Q(b);N_PINB(E),P_SPINB(c)::QAR(G)+B(E)
- Q(b);N_GUARD,N_PINB(E)::R1(A)
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).