MESON Chess Problem Database
Problem Display
PID: 190049 (bK1R4/4p1B1/ppN1k1B1/1p6/4np2/5q1N/5b2/3n1Q2 w - - 0 1)
Palkoska, Emil
Deutsche Schachzeitung, 1913
#2
7 + 11
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Qh1
- 2.Sxf4#
- 1...Qe2
- 2.Sxf4#
- 1...Qg2
- 2.Sxf4#
- 1...Qh5
- 2.Sxf4#
- 1...Qa3
- 2.Sxf4#
- 1...Qb3
- 2.Sxf4#
- 1...Qc3
- 2.Sxf4#
- 1...Qd3
- 2.Sxf4#
- 1...Qxh3
- 2.Qxh3#
- 1...Be1
- 2.Sd4#
- 1...Bg3
- 2.Sd4#
- 1...Bd4
- 2.Sxd4#
- 1...Bh4
- 2.Sd4#
- 1...Se3
- 2.Sd4#
- 1...Sd2
- 2.Sg5#
- 1...Sc3
- 2.Sg5#
- 1...Sg3
- 2.Sg5#
- 1...Sc5
- 2.Sg5#
- 1...Sg5
- 2.Sxg5#
- 1...Sf6
- 2.Sg5#
- 1...b4
- 2.Qc4#
- 1...Qh1
- Tries
- 1.Qd3?
- threat
- 2.Qd5#
- 2.Qd7#
- 1...Qxd3
- 2.Sxf4#
- 1...Qh5
- 2.Sxf4#
- 2.Qd7#
- 1...Bd4
- 2.Sxd4#
- 1...Sdc3
- 2.Qd7#
- 1...Se3
- 2.Sd4#
- 2.Qd7#
- 1...Sd2
- 2.Sg5#
- 2.Qf5#
- 2.Qd7#
- 1...Sec3
- 2.Sg5#
- 2.Qf5#
- 2.Qd7#
- 1...Sg3
- 2.Sg5#
- 2.Qd7#
- 1...Sc5
- 2.Sg5#
- 2.Qf5#
- 1...Sg5
- 2.Sxg5#
- 2.Qf5#
- 2.Qd7#
- 1...Sd6
- 2.Sg5#
- 1...Sf6
- 2.Sg5#
- 2.Qf5#
- 1...Bxc6!
- threat
- 1.Qxb5?
- threat
- 2.Qc4#
- 2.Qd5#
- 2.Qe5#
- 2.Qf5#
- 1...Qxh3
- 2.Qc4#
- 2.Qd5#
- 2.Qe5#
- 1...Bxc6
- 2.Qe5#
- 2.Qf5#
- 1...Qg4
- 2.Qc4#
- 2.Qb3#
- 2.Qd5#
- 2.Qe5#
- 1...Qe2
- 2.Sxf4#
- 2.Qd5#
- 2.Qe5#
- 2.Qf5#
- 1...Qh5
- 2.Sxf4#
- 1...Qb3
- 2.Sxf4#
- 2.Qxb3#
- 2.Qe5#
- 2.Qf5#
- 1...Qc3
- 2.Sxf4#
- 2.Qd5#
- 2.Qf5#
- 1...Qd3
- 2.Sxf4#
- 2.Qe5#
- 2.Qf5#
- 1...Bd4
- 2.Sxd4#
- 2.Qc4#
- 2.Qd5#
- 2.Qf5#
- 1...Bc5
- 2.Qc4#
- 1...Sb2
- 2.Qd5#
- 2.Qe5#
- 2.Qf5#
- 1...Sdc3
- 2.Qe5#
- 2.Qf5#
- 1...Se3
- 2.Sd4#
- 2.Qe5#
- 1...Sd2
- 2.Sg5#
- 2.Qe5#
- 2.Qf5#
- 1...Sec3
- 2.Sg5#
- 2.Qe5#
- 2.Qf5#
- 1...Sg3
- 2.Sg5#
- 2.Qe5#
- 1...Sc5
- 2.Sg5#
- 1...Sg5
- 2.Sxg5#
- 2.Qe5#
- 2.Qf5#
- 1...Sd6
- 2.Sg5#
- 2.Qe5#
- 1...Sf6
- 2.Sg5#
- 2.Qe5#
- 2.Qf5#
- 1...axb5!
- threat
- 1.Qxd1?
- threat
- 2.Qd5#
- 2.Qd7#
- 1...Qxd1
- 2.Sxf4#
- 1...Qh5
- 2.Sxf4#
- 2.Qd7#
- 1...Qb3
- 2.Sxf4#
- 2.Qxb3#
- 2.Qg4#
- 2.Qd7#
- 1...Qd3
- 2.Sxf4#
- 2.Qg4#
- 1...Bd4
- 2.Sxd4#
- 1...Sd2
- 2.Sg5#
- 1...Sc3
- 2.Sg5#
- 2.Qd7#
- 1...Sg3
- 2.Sg5#
- 2.Qd7#
- 1...Sc5
- 2.Sg5#
- 1...Sg5
- 2.Sxg5#
- 2.Qd7#
- 1...Sd6
- 2.Sg5#
- 1...Sf6
- 2.Sg5#
- 1...Bxc6!
- threat
- 1.Qd3?
- Keys
- 1.Qe2!
- threat
- 2.Sg5#
- 1...Qxe2
- 2.Sxf4#
- 1...Qxh3
- 2.Qxe4#
- 1...Qg4
- 2.Qxg4#
- 2.Qa2#
- 2.Qxe4#
- 1...Qg2
- 2.Sxf4#
- 2.Qa2#
- 1...Qh5
- 2.Sxf4#
- 1...Qe3
- 2.Qg4#
- 1...Qg3
- 2.Qxe4#
- 1...Be3
- 2.Qa2#
- 1...Bh4
- 2.Sd4#
- 1...Se3
- 2.Sd4#
- threat
- 1.Qe2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 16
- Sets
- Q(c);N_GUARD::S(B),XP(e)
- Q(c);OGATE,XS(B)::QAB(A),XQ(c)
- B(b);N_GUARD::S(C)
- B(b);N_GUARD::S(C),XB(b)
- S(a);S_CUTB(b)::S(C)
- S(d);N_GUARD::S(B)
- S(d);N_GUARD::S(B),XS(d)
- P(f);N_GUARD::QAB(A)
- Tries
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(c);N_GUARD,XQ(A)::S(B),XP(e)
- B(b);N_GUARD::S(C),XB(b)
- S(a);::QAB1(A)
- S(d);N_GUARD::S(B)
- Refutation
- B(k);XS(C)
- Try
- Q(A);XP(f)
- Threat
- DUALS(4)
- Vars
- Q(c);N_GUARD::S(B),XP(e)
- B(b);::QAB(A)
- S(d);N_GUARD::S(B)
- Refutation
- P(g);XQ(A)
- Try
- Q(A);XS(a)
- Threat
- DUALS(2)
- Vars
- Q(c);N_GUARD,XQ(A)::S(B),XP(e)
- B(b);N_GUARD::S(C),XB(b)
- S(d);N_GUARD::S(B)
- Refutation
- B(k);XS(C)
- Try
- Actual
- Q(A);P_PINS(d)
- Threat
- S(B)
- Vars
- Q(c);N_GUARD,N_SPINS(d),XQ(A)::S(B),XP(e)
- Q(c);N_GUARD,XS(B)::QAR2(A),XS(d)
- Q(c);N_GUARD::S(B),XP(e)
- Q(c);N_SPINS(d),OGATE::QAB(A)
- Q(c);N_GUARD::QAR2(A),XS(d)
- B(b);N_SPINS(d),S_CUTQ(c)::QAB(A)
- B(b);N_GUARD::S(C)
- S(a);N_SPINS(d),S_CUTB(b)::S(C)
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).