MESON Chess Problem Database
Problem Display
PID: 240533 (8/1Qq5/nPp1p3/b3P1p1/R2N1p2/1r1kB1N1/5P2/2RB2nK w - - 0 1)
Aloni, Yoel
Han, Israel
Variantim, 2012
#2
11 + 10
SOLUTION
- SOUND
- Sets
- 1...Qxb6
- 2.Qh7#
- 1...Qd6
- 2.Qh7#
- 1...Qb8
- 2.Qh7#
- 1...Qd8
- 2.Qh7#
- 1...Qh7+
- 2.Qxh7#
- 1...Qc8
- 2.Qh7#
- 1...Ra3
- 2.Qxa6#
- 1...Bc3
- 2.Bc2#
- 1...Bb4
- 2.Qxa6#
- 1...Se2
- 2.Bxe2#
- 1...Sf3
- 2.Be2#
- 1...Sh3
- 2.Be2#
- 1...c5
- 2.Qe4#
- 1...Qxb6
- Tries
- 1.Sde2?
- threat
- 2.Bc2#
- 2.Rd4#
- 1...Qh7+
- 2.Qxh7#
- 1...Qxe5
- 2.Bc2#
- 1...Qxb6
- 2.Bc2#
- 2.Qh7#
- 1...Bxb6
- 2.Bc2#
- 1...Sxe2
- 2.Bxe2#
- 1...fxe3
- 2.Rd4#
- 1...fxg3
- 2.Rd4#
- 1...Qd6
- 2.Bc2#
- 2.Qh7#
- 1...Qd8
- 2.Bc2#
- 2.Qh7#
- 1...Qd7
- 2.Bc2#
- 2.Qxd7#
- 1...Rb2
- 2.Rd4#
- 1...Rc3
- 2.Rd4#
- 1...Rb4
- 2.Rc3#
- 1...Bc3
- 2.Bc2#
- 1...Bb4
- 2.Qxa6#
- 1...Sf3
- 2.Bc2#
- 1...c5
- 2.Bc2#
- 2.Qe4#
- 1...Sb4!
- threat
- 1.Sxb3?
- threat
- 2.Rd4#
- 2.Qxa6#
- 1...Qh7+
- 2.Qxh7#
- 1...Qxb6
- 2.Qh7#
- 1...Qxb7
- 2.Rd4#
- 1...Bxb6
- 2.Qxa6#
- 1...Qd6
- 2.Qxa6#
- 2.Qh7#
- 1...Qd8
- 2.Qxa6#
- 2.Qh7#
- 1...Qd7
- 2.Qxa6#
- 2.Qxd7#
- 1...Qc8
- 2.Rd4#
- 2.Qh7#
- 1...Bc3
- 2.Bc2#
- 2.Qxa6#
- 1...Bb4
- 2.Qxa6#
- 1...Se2
- 2.Bxe2#
- 2.Qxa6#
- 1...Sf3
- 2.Be2#
- 2.Qxa6#
- 1...Sb4
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 2.Rd4#
- 1...Sb8
- 2.Sc5#
- 2.Rd4#
- 1...c5
- 2.Qe4#
- 1...Qxe5!
- threat
- 1.Sde2?
- Keys
- 1.Sf3!
- threat
- 2.Rd4#
- 1...Qh7+
- 2.Qxh7#
- 1...Qxe5
- 2.Sxe5#
- 1...Qxb6
- 2.Qh7#
- 1...Bxb6
- 2.Se1#
- 1...Sxf3
- 2.Be2#
- 1...Qd6
- 2.Qh7#
- 1...Qd8
- 2.Qh7#
- 1...Qd7
- 2.Qxd7#
- 1...Rb4
- 2.Se1#
- 1...Bc3
- 2.Bc2#
- 1...Bb4
- 2.Qxa6#
- 1...Se2
- 2.Bxe2#
- 1...Sb4
- 2.Se1#
- 1...c5
- 2.Qe4#
- threat
- 1.Sf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 4
- Sets
- Q(j);OGATE,XP(J)::QAB(K)
- Q(j);OGATE::QAB(K)
- Q(j);CHECK,OGATE::QAB(K),XQ(j)
- R(b);N_GUARD::QAB(K),XS(g)
- B(e);SBLOCK::B(B)
- B(e);S_CUTR(b)::QAB(K),XS(g)
- S(a);N_GUARD::B(B),XS(a)
- S(a);N_GUARD::B(B)
- P(h);OGATE::QAB1(K)
- Tries
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- Q(j);CHECK,OGATE::QAB(K),XQ(j)
- Q(j);XP(I)::B(B)
- B(e);XP(J)::B(B)
- S(a);OGATE,XS(H)::B(B),XS(a)
- P(d);XB(E)::R1(G)
- P(d);XS(F)::R1(G)
- R(b);::R1(G)
- R(b);N_GUARD,S_CUTB(e)::R1(A)
- B(e);::B(B)
- B(e);S_CUTR(b)::QAB(K),XS(g)
- S(a);::B(B)
- Refutation
- S(g);
- Try
- S(H);XR(b)
- Threat
- DUALS(2)
- Vars
- Q(j);CHECK,OGATE::QAB(K),XQ(j)
- Q(j);OGATE,XP(J)::QAB(K)
- Q(j);XQ(K)::R1(G)
- B(e);XP(J)::QAB(K),XS(g)
- B(e);::QAB(K),XS(g)
- S(g);N_GUARD::S(H)
- P(h);OGATE::QAB1(K)
- Refutation
- Q(j);XP(I)
- Try
- Actual
- S(H);
- Threat
- R1(G)
- Vars
- Q(j);CHECK,OGATE::QAB(K),XQ(j)
- Q(j);XP(I)::S(H),XQ(j)
- Q(j);OGATE,XP(J)::QAB(K)
- B(e);N_GUARD,XP(J)::S(H)
- S(a);N_GUARD,XS(H)::B(B)
- Q(j);OGATE::QAB(K)
- Q(j);OGATE::QAR(K),XQ(j)
- R(b);S_CUTB(e)::S(H)
- B(e);SBLOCK::B(B)
- B(e);S_CUTR(b)::QAB(K),XS(g)
- S(a);N_GUARD::B(B),XS(a)
- S(g);S_CUTB(e)::S(H)
- P(h);OGATE::QAB1(K)
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).