MESON Chess Problem Database
Problem Display
PID: 63900 (b2N4/2BRPq2/1p6/3PPr2/1K1kNb1R/n7/2p1QPn1/7B w - - 0 1)
Stoyanov, Kiril N
StrateGems, 2005
#2
12 + 9
SOLUTION
- SOUND
- Sets
- 1...Qxd5
- 2.Se6#
- 1...Qh5
- 2.Se6#
- 1...Qe6
- 2.Sxe6#
- 1...Qe8
- 2.Se6#
- 1...Qg7
- 2.Se6#
- 1...Qh7
- 2.Se6#
- 1...Qf8
- 2.Se6#
- 1...Rxe5
- 2.Bxb6#
- 1...Bd2+
- 2.Qxd2#
- 1...Bh2
- 2.Qd2#
- 1...Bg3
- 2.Qd2#
- 1...Bxe5
- 2.Bxb6#
- 2.Qd2#
- 1...Bxd5
- 2.Sc6#
- 1...Bc6
- 2.Sxc6#
- 1...Se3
- 2.Qd2#
- 1...Sb1
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sb5
- 2.Qc4#
- 1...Qxd5
- Tries
- 1.Sd2?
- threat
- 2.Sb3#
- 2.Sf3#
- 2.Bxb6#
- 2.Qe4#
- 1...Rxe5
- 2.Sb3#
- 2.Sf3#
- 2.Bxe5#
- 2.Bxb6#
- 1...Sxh4
- 2.Sb3#
- 2.Bxb6#
- 2.Qe4#
- 1...c1Q
- 2.Sb3#
- 2.Sf3#
- 2.Qe4#
- 1...c1S
- 2.Sf3#
- 2.Bxb6#
- 2.Qe4#
- 1...c1R
- 2.Sb3#
- 2.Sf3#
- 2.Qe4#
- 1...Qh5
- 2.Sb3#
- 2.Se6#
- 2.Bxb6#
- 2.Qe4#
- 1...Qe6
- 2.Sb3#
- 2.Sf3#
- 2.Sxe6#
- 2.Qe4#
- 1...Qg6
- 2.Sb3#
- 2.Sf3#
- 2.Qe4#
- 1...Qf6
- 2.Sb3#
- 2.Sf3#
- 2.Qe4#
- 1...Rf6
- 2.Sb3#
- 2.Sf3#
- 2.Qe4#
- 1...Se1
- 2.Sb3#
- 2.Bxb6#
- 2.Qe3#
- 2.Qe4#
- 1...Se3
- 2.Sb3#
- 2.Qxe3#
- 2.fxe3#
- 1...Sc4
- 2.Sb3#
- 2.Sf3#
- 2.Qxc4#
- 2.Qe4#
- 1...b5
- 2.Sb3#
- 2.Sf3#
- 2.Bb6#
- 2.Qe4#
- 1...Qxe7+!
- threat
- 1.Sc3?
- threat
- 2.Bxb6#
- 2.Qd2#
- 2.Qe4#
- 1...Rxe5
- 2.Bxe5#
- 2.Bxb6#
- 2.Qd2#
- 1...Sxh4
- 2.Bxb6#
- 2.Qe4#
- 1...c1Q
- 2.Bxb6#
- 2.Qe4#
- 1...c1S
- 2.Bxb6#
- 2.Qe4#
- 1...c1B
- 2.Bxb6#
- 2.Qe4#
- 1...Qe6
- 2.Sxe6#
- 2.Qd2#
- 2.Qe4#
- 1...Qg6
- 2.Qd2#
- 2.Qe4#
- 1...Qf6
- 2.Qd2#
- 2.Qe4#
- 1...Rf6
- 2.Qd2#
- 2.Qe4#
- 1...Se1
- 2.Bxb6#
- 2.Qe3#
- 2.Qe4#
- 1...Se3
- 2.Qd2#
- 2.Qxe3#
- 2.fxe3#
- 1...Sb1
- 2.Sb5#
- 2.Bxb6#
- 2.Qc4#
- 2.Qe4#
- 1...Sc4
- 2.Sb5#
- 2.Qxc4#
- 2.Qe4#
- 1...b5
- 2.Bb6#
- 2.Qd2#
- 2.Qe4#
- 1...Qxe7+!
- threat
- 1.Sg3?
- threat
- 2.Bxb6#
- 2.Qd2#
- 2.Qe4#
- 1...Rxe5
- 2.Bxe5#
- 2.Bxb6#
- 2.Qd2#
- 1...Sxh4
- 2.Bxb6#
- 2.Qe4#
- 1...c1Q
- 2.Qe4#
- 1...c1S
- 2.Bxb6#
- 2.Qe4#
- 1...c1B
- 2.Bxb6#
- 2.Qe4#
- 1...c1R
- 2.Qd2#
- 2.Qe4#
- 1...Qe6
- 2.Sxe6#
- 2.Qd2#
- 2.Qe4#
- 1...Qg6
- 2.Qd2#
- 2.Qe4#
- 1...Qf6
- 2.Qd2#
- 2.Qe4#
- 1...Rf6
- 2.Qd2#
- 2.Qe4#
- 1...Se1
- 2.Bxb6#
- 2.Qe3#
- 2.Qe4#
- 1...Se3
- 2.Qd2#
- 2.Qxe3#
- 2.fxe3#
- 1...Sb1
- 2.Bxb6#
- 2.Qc4#
- 2.Qe4#
- 1...Sc4
- 2.Qxc4#
- 2.Qe4#
- 1...b5
- 2.Bb6#
- 2.Qd2#
- 2.Qe4#
- 1...Qxe7+!
- threat
- 1.Sc5?
- threat
- 2.Sb3#
- 2.Qd3#
- 2.Qd2#
- 2.Qe4#
- 1...Qxe7
- 2.Qd3#
- 2.Qd2#
- 2.Qe4#
- 1...Rxe5
- 2.Sb3#
- 2.Bxe5#
- 2.Qd3#
- 2.Qd2#
- 2.Qxe5#
- 1...Sxh4
- 2.Sb3#
- 2.Qd3#
- 2.Qe4#
- 1...c1Q
- 2.Sb3#
- 2.Qd3#
- 2.Qe4#
- 1...c1S
- 2.Qb2#
- 2.Qe4#
- 1...c1B
- 2.Sb3#
- 2.Qd3#
- 2.Qe4#
- 1...Se1
- 2.Sb3#
- 2.Qe3#
- 2.Qe4#
- 1...Se3
- 2.Sb3#
- 2.Qd3#
- 2.Qd2#
- 2.Qxe3#
- 2.fxe3#
- 1...Sb1
- 2.Sb3#
- 2.Qd3#
- 2.Qc4#
- 2.Qe4#
- 1...Sc4
- 2.Sb3#
- 2.Qd3#
- 2.Qxc4#
- 2.Qe4#
- 1...bxc5+!
- threat
- 1.Sg5?
- threat
- 2.Sf3#
- 2.Bxb6#
- 2.Qd2#
- 2.Qe4#
- 1...Rxe5
- 2.Sf3#
- 2.Bxe5#
- 2.Bxb6#
- 2.Qd2#
- 1...Rxg5
- 2.Bxb6#
- 1...Sxh4
- 2.Bxb6#
- 2.Qe4#
- 1...c1Q
- 2.Sf3#
- 2.Qe4#
- 1...c1S
- 2.Sf3#
- 2.Bxb6#
- 2.Qe4#
- 1...c1B
- 2.Sf3#
- 2.Bxb6#
- 2.Qe4#
- 1...c1R
- 2.Sf3#
- 2.Qd2#
- 2.Qe4#
- 1...Qh5
- 2.Sge6#
- 2.Sde6#
- 2.Bxb6#
- 2.Qd2#
- 2.Qe4#
- 1...Qe6
- 2.Sf3#
- 2.Sgxe6#
- 2.Sdxe6#
- 2.Qd2#
- 2.Qe4#
- 1...Qg6
- 2.Sf3#
- 2.Qd2#
- 2.Qe4#
- 1...Qf6
- 2.Sf3#
- 2.Qd2#
- 2.Qe4#
- 1...Rf6
- 2.Sf3#
- 2.Qd2#
- 2.Qe4#
- 1...Se1
- 2.Bxb6#
- 2.Qe3#
- 2.Qe4#
- 1...Se3
- 2.Qd2#
- 2.Qxe3#
- 2.fxe3#
- 1...Sb1
- 2.Sf3#
- 2.Bxb6#
- 2.Qc4#
- 2.Qe4#
- 1...Sc4
- 2.Sf3#
- 2.Qxc4#
- 2.Qe4#
- 1...b5
- 2.Sf3#
- 2.Bb6#
- 2.Qd2#
- 2.Qe4#
- 1...Qxe7+!
- threat
- 1.Qd2+?
- 1...Kxe4
- 2.Bxg2#
- 2.Qe3#
- 1...Bxd2+!
- 1...Kxe4
- 1.Sd2?
- Keys
- 1.Sd6!
- threat
- 2.Qe4#
- 1...Kxd5
- 2.Sc4#
- 2.Se4#
- 2.Sb5#
- 2.Sxf5#
- 2.S6b7#
- 2.S6xf7#
- 2.Sc8#
- 2.Se8#
- 2.Qe4#
- 1...Qxd5
- 2.Sxf5#
- 1...Rxe5
- 2.Qd2#
- 1...Bxd5
- 2.Bxb6#
- 1...Se3
- 2.Qxe3#
- threat
- 1.Sd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 4
- ADDED MATES = 0
- REMOVED MATES = 13
- Sets
- Q(h);N_GUARD,P_SPINQ(h),XP(G)::S(L)
- Q(h);N_GUARD::S(L)
- Q(h);N_GUARD::S(L),XQ(h)
- Q(h);N_GUARD,P_PINP(K)::S(L)
- R(f);SBLOCK,XP(H)::B(I),XP(g)
- B(e);CHECK,N_GUARD::QAR2(B),XB(e)
- B(e);N_GUARD::QAR2(B)
- B(i);N_GUARD,P_SPINB(i),XP(G)::S(L)
- B(i);N_GUARD::S(L),XB(i)
- S(b);S_CUTB(e)::QAR2(B)
- S(c);N_GUARD::QAR1(B)
- S(c);N_GUARD::QAR1(B),XS(c)
- Tries
- Try
- S(E);P_PINB(e)
- Threat
- DUALS(4)
- Refutation
- Q(h);CHECK,XP(K)
- Try
- S(E);P_PINB(e)
- Threat
- DUALS(3)
- Refutation
- Q(h);CHECK,XP(K)
- Try
- S(E);P_PINB(e)
- Threat
- DUALS(3)
- Vars
- P(a);::QAR1(B)
- Refutation
- Q(h);CHECK,XP(K)
- Try
- S(E);P_PINB(e)
- Threat
- DUALS(4)
- Refutation
- P(g);CHECK,XS(E)
- Try
- S(E);P_PINB(e)
- Threat
- DUALS(4)
- Vars
- R(f);XS(E)::B(I),XP(g)
- Refutation
- Q(h);CHECK,XP(K)
- Try
- Q(B);CHECK
- Refutation
- B(e);CHECK,XQ(B)
- Try
- Actual
- S(E);P_PINB(e)
- Threat
- QAR1(B)
- Vars
- Q(h);N_GUARD,XP(G)::S(E),XR(f)
- R(f);SBLOCK,XP(H)::QAR2(B)
- B(i);SBLOCK,XP(G)::B(I),XP(g)
- S(b);N_GUARD::QAB1(B),XS(b)
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).