MESON Chess Problem Database
Problem Display
PID: 261184 (B1n2rq1/2pN4/2Q4B/Kp1n2r1/1p2pkPP/4R1Rp/1b1P3P/5bN1 w - - 0 1)
Weber, Jacques
Neue Zurcher Zeitung, 1977
#2
12 + 13
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Qe6
- 2.Bxg5#
- 1...Qf7
- 2.Bxg5#
- 1...Qh7
- 2.Bxg5#
- 1...Qh8
- 2.Bxg5#
- 1...Be2
- 2.Sxe2#
- 2.Sxh3#
- 1...Bg2
- 2.Se2#
- 1...Bd3
- 2.Sxh3#
- 1...Bc4
- 2.Sxh3#
- 1...Bg7
- 2.Bxg5#
- 1...Sxe3
- 2.Qxe4#
- 2.dxe3#
- 1...Sdb6
- 2.Rxe4#
- 2.Qxe4#
- 1...Sde7
- 2.Rxe4#
- 2.Qxe4#
- 1...Qe6
- Tries
- 1.Qc1?
- threat
- 2.Qxf1#
- 1...Sxe3
- 2.dxe3#
- 1...Be2
- 2.Sxe2#
- 2.Sxh3#
- 1...Bg2
- 2.Se2#
- 1...Bd3
- 2.Sxh3#
- 1...Bc4
- 2.Sxh3#
- 1...Bxc1!
- threat
- 1.Qc4?
- threat
- 2.Ref3#
- 2.Rxe4#
- 2.Qxf1#
- 2.Qxe4#
- 1...Bxc4
- 2.Sxh3#
- 1...Sxe3
- 2.Qxe4#
- 2.dxe3#
- 1...Qg6
- 2.Ref3#
- 2.Qxf1#
- 1...Qe6
- 2.Bxg5#
- 2.Ref3#
- 2.Qxf1#
- 1...Qh7
- 2.Bxg5#
- 2.Ref3#
- 2.Qxf1#
- 1...Re8
- 2.Ref3#
- 2.Qxf1#
- 1...Be2
- 2.Sxe2#
- 2.Sxh3#
- 2.Rxe4#
- 2.Qxe4#
- 1...Bg2
- 2.Se2#
- 1...Bd3
- 2.Sxh3#
- 2.Ref3#
- 1...Bd4
- 2.Qxf1#
- 1...Sc3
- 2.Ref3#
- 2.Qxf1#
- 1...Sf6
- 2.Ref3#
- 2.Qxf1#
- 1...Sd6
- 2.Ref3#
- 2.Qxf1#
- 1...bxc4!
- threat
- 1.Qg6?
- threat
- 2.Bxg5#
- 2.Rxe4#
- 2.Qxe4#
- 1...Sxe3
- 2.Bxg5#
- 2.Qxe4#
- 2.dxe3#
- 1...Qe6
- 2.Bxg5#
- 2.Qxg5#
- 1...Qh7
- 2.Bxg5#
- 2.Rxe4#
- 2.Qxg5#
- 1...Rf5
- 2.Qxf5#
- 1...Re8
- 2.Bxg5#
- 2.Qf5#
- 1...Bg2
- 2.Se2#
- 2.Bxg5#
- 1...Bd3
- 2.Sxh3#
- 2.Bxg5#
- 1...Bf6
- 2.Rxe4#
- 2.Qxe4#
- 2.Qf5#
- 1...Sc3
- 2.Bxg5#
- 1...Sf6
- 2.Bxg5#
- 2.Qf5#
- 1...Sd6
- 2.Bxg5#
- 1...Qxg6!
- threat
- 1.Qxc7+?
- 1...Be5
- 2.Qxe5#
- 1...Sxc7
- 2.Rxe4#
- 1...Sd6!
- 1...Be5
- 1.Qc1?
- Keys
- 1.Qxb5!
- threat
- 2.Qxf1#
- 1...Bxb5
- 2.Sxh3#
- 1...Sxe3
- 2.dxe3#
- 1...Be2
- 2.Sxe2#
- 2.Sxh3#
- 1...Bg2
- 2.Se2#
- 1...Bd3
- 2.Sxh3#
- 1...Bc4
- 2.Sxh3#
- 1...Sc3
- 2.Qe5#
- 1...Sdb6
- 2.Rxe4#
- 1...Sf6
- 2.Qf5#
- 1...Sde7
- 2.Rxe4#
- threat
- 1.Qxb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 5
- Sets
- Q(m);N_GUARD::B(J),XR(i)
- B(a);N_GUARD::S(A)
- B(a);N_GUARD::S(A),XP(c)
- B(b);S_CUTQ(m)::B(J),XR(i)
- Tries
- Try
- Q(I);
- Threat
- QAR(I),XB(a)
- Vars
- S(h);OGATE,XR(D)::P(B),XS(h)
- B(a);N_GUARD::S(A)
- B(a);N_GUARD::S(A),XP(c)
- Refutation
- B(b);XQ(I)
- Try
- Q(I);P_PINP(e)
- Threat
- DUALS(4)
- Vars
- B(a);N_GUARD,N_SPINP(e),XQ(I)::S(A),XP(c)
- B(a);N_GUARD::S(A)
- B(b);N_SPINP(e)::QAR(I),XB(a)
- Refutation
- P(g);N_SPINP(e),XQ(I)
- Try
- Q(I);
- Threat
- DUALS(3)
- Vars
- R(l);N_GUARD::QAR1(I),XR(l)
- S(h);::B(J),XR(i)
- S(k);::B(J),XR(i)
- Refutation
- Q(m);XQ(I)
- Try
- Q(I);CHECK,XP(j)
- Vars
- B(b);N_GUARD,P_SPINB(b)::QAB1(I),XB(b)
- S(h);XQ(I)::R1(D),XP(e)
- Refutation
- S(k);P_SPINS(k)
- Try
- Actual
- Q(I);XP(g)
- Threat
- QAR(I),XB(a)
- Vars
- B(a);N_GUARD,XQ(I)::S(A),XP(c)
- S(h);OGATE,P_PINQ(I),XR(D)::P(B),XS(h)
- B(a);N_GUARD::S(A)
- B(a);N_GUARD::S(A),XP(c)
- S(h);OGATE,P_PINQ(I)::QAB1(I)
- S(h);P_PINQ(I)::R1(D),XP(e)
- S(h);OGATE,P_PINQ(I)::QAR1(I)
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).