MESON Chess Problem Database
Problem Display
PID: 173056 (8/8/B5Q1/8/3qp3/1p1NP2p/1n3B1R/RK3kN1 w - - 0 1)
Barulin, Mikhail Mikhailovich
Tijdschrift vd NSB, 1927
#2
9 + 6
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qb6
- 2.Kxb2#
- 1...Qa7
- 2.Kxb2#
- 1...Qg7
- 2.Sxb2#
- 1...Qh8
- 2.Sxb2#
- 1...Qxd3+
- 2.Kxb2#
- 1...Qd5
- 2.Kxb2#
- 1...Qd6
- 2.Kxb2#
- 1...Qd7
- 2.Kxb2#
- 1...Qd8
- 2.Kxb2#
- 1...Qb6
- Tries
- 1.Sxb2+?
- 1...Qc4
- 2.Bxc4#
- 1...Qd3+!
- 1...Qc4
- 1.Qh5?
- threat
- 2.Qe2#
- 2.Qxh3#
- 1...Qxd3+
- 2.Kxb2#
- 1...exd3
- 2.Qxh3#
- 1...Qg7
- 2.Sxb2#
- 2.Qe2#
- 1...Qh8
- 2.Sxb2#
- 2.Qe2#
- 1...Qd7
- 2.Kxb2#
- 2.Qe2#
- 1...Qxe3!
- threat
- 1.Qh7?
- threat
- 2.Qxh3#
- 1...Qxd3+
- 2.Kxb2#
- 1...Qg7
- 2.Sxb2#
- 1...Qh8
- 2.Sxb2#
- 1...Qd7
- 2.Kxb2#
- 1...Qxe3!
- threat
- 1.Qg3?
- threat
- 2.Qxh3#
- 1...Qxd3+
- 2.Kxb2#
- 1...Qg7
- 2.Sxb2#
- 1...Qh8
- 2.Sxb2#
- 1...Qd7
- 2.Kxb2#
- 1...Qxe3!
- threat
- 1.Qg4?
- threat
- 2.Qe2#
- 2.Qxh3#
- 1...Qxd3+
- 2.Kxb2#
- 1...exd3
- 2.Qxh3#
- 1...Qg7
- 2.Sxb2#
- 2.Qe2#
- 1...Qh8
- 2.Sxb2#
- 2.Qe2#
- 1...Qd7
- 2.Kxb2#
- 2.Qe2#
- 1...Qxe3!
- threat
- 1.Qe6?
- threat
- 2.Qxh3#
- 1...Qxd3+
- 2.Kxb2#
- 1...Qg7
- 2.Sxb2#
- 1...Qh8
- 2.Sxb2#
- 1...Qd7
- 2.Kxb2#
- 1...Qxe3!
- threat
- 1.Qh6?
- threat
- 2.Qxh3#
- 1...Qxd3+
- 2.Kxb2#
- 1...Qg7
- 2.Sxb2#
- 1...Qh8
- 2.Sxb2#
- 1...Qd7
- 2.Kxb2#
- 1...Qxe3!
- threat
- 1.Sxb2+?
- Keys
- 1.Qf5!
- threat
- 2.Qxh3#
- 1...Qxd3+
- 2.Kxb2#
- 1...Qxe3
- 2.Bxe3#
- 1...Qg7
- 2.Sxb2#
- 1...Qh8
- 2.Sxb2#
- 1...Qd7
- 2.Kxb2#
- threat
- 1.Qf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- Q(e);::R(A)+K(B),XS(b)
- Q(e);N_GUARD::B(H)+S(F),XS(b)
- Q(e);CHECK,P_SPINQ(e),XS(F)::R(A)+K(B),XS(b)
- Tries
- Try
- S(F);CHECK,XS(b)
- Vars
- Q(e);N_GUARD,P_SPINQ(e)::B(H),XQ(e)
- Refutation
- Q(e);CHECK,P_SPINQ(e)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- Q(e);CHECK,P_SPINQ(e),XS(F)::R(A)+K(B),XS(b)
- P(f);P_SPINP(f),XS(F)::QAB(I),XP(d)
- Refutation
- Q(e);XP(G)
- Try
- Q(I);
- Threat
- QAB(I),XP(d)
- Vars
- Q(e);CHECK,P_SPINQ(e),XS(F)::R(A)+K(B),XS(b)
- Q(e);N_GUARD::B(H)+S(F),XS(b)
- Q(e);::R(A)+K(B),XS(b)
- Refutation
- Q(e);XP(G)
- Try
- Q(I);
- Threat
- QAB(I),XP(d)
- Vars
- Q(e);CHECK,P_SPINQ(e),XS(F)::R(A)+K(B),XS(b)
- Q(e);N_GUARD::B(H)+S(F),XS(b)
- Q(e);::R(A)+K(B),XS(b)
- Refutation
- Q(e);XP(G)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- Q(e);CHECK,P_SPINQ(e),XS(F)::R(A)+K(B),XS(b)
- P(f);P_SPINP(f),XS(F)::QAB(I),XP(d)
- Refutation
- Q(e);XP(G)
- Try
- Q(I);
- Threat
- QAB(I),XP(d)
- Vars
- Q(e);CHECK,P_SPINQ(e),XS(F)::R(A)+K(B),XS(b)
- Q(e);N_GUARD::B(H)+S(F),XS(b)
- Q(e);::R(A)+K(B),XS(b)
- Refutation
- Q(e);XP(G)
- Try
- Q(I);
- Threat
- QAB(I),XP(d)
- Vars
- Q(e);CHECK,P_SPINQ(e),XS(F)::R(A)+K(B),XS(b)
- Q(e);N_GUARD::B(H)+S(F),XS(b)
- Q(e);::R(A)+K(B),XS(b)
- Refutation
- Q(e);XP(G)
- Try
- Actual
- Q(I);
- Threat
- QAB(I),XP(d)
- Vars
- Q(e);CHECK,P_SPINQ(e),XS(F)::R(A)+K(B),XS(b)
- Q(e);OGATE,XP(G)::QAR(I)+B(D),XQ(e)
- Q(e);N_GUARD::B(H)+S(F),XS(b)
- Q(e);::R(A)+K(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).