MESON Chess Problem Database
Problem Display
PID: 181111 (7K/1ppp2P1/1q3B2/3pNbPp/7k/8/4QPP1/8 w - - 0 1)
Palkoska, Emil
Deutsches Wochenschach, 1904
#2
8 + 8
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qxf2
- 2.Qxf2#
- 1...Qd4
- 2.g6#
- 1...Qa5
- 2.g6#
- 1...Qc5
- 2.g6#
- 1...Qa7
- 2.g6#
- 1...Qb1
- 2.g6#
- 1...Qb2
- 2.g6#
- 1...Qb3
- 2.g6#
- 1...Qb4
- 2.g6#
- 1...Qb5
- 2.g6#
- 1...Bh3
- 2.Sg6#
- 2.g3#
- 1...Bg4
- 2.Sg6#
- 1...Be6
- 2.Sg6#
- 2.g6#
- 1...Bg6
- 2.Sxg6#
- 1...c6
- 2.g6#
- 1...d6
- 2.g6#
- 1...Qxf2
- Tries
- 1.Qf3?
- threat
- 2.Qg3#
- 1...Qxf2
- 2.Qxf2#
- 2.g6#
- 1...Qb3
- 2.g6#
- 1...Qe3!
- threat
- 1.Qg4+?
- 1...Bxg4
- 2.Sg6#
- 1...hxg4!
- 1...Bxg4
- 1.Qe3?
- threat
- 2.Qg3#
- 1...Qb3
- 2.g6#
- 1...Qxe3!
- threat
- 1.Qf3?
- Keys
- 1.Qe1!
- 1...Qxf2
- 2.Qxf2#
- 1...Qxf6
- 2.f4#
- 1...Qe3
- 2.fxe3#
- 1...Qd4
- 2.g6#
- 1...Qa5
- 2.g6#
- 1...Qc5
- 2.g6#
- 1...Qa7
- 2.g6#
- 1...Qb1
- 2.g6#
- 1...Qb2
- 2.g6#
- 1...Qb3
- 2.f3#
- 2.g6#
- 1...Qb4
- 2.g6#
- 1...Qb5
- 2.f3#
- 2.f4#
- 2.g6#
- 1...Qa6
- 2.f3#
- 2.f4#
- 1...Qc6
- 2.f3#
- 2.f4#
- 1...Qd6
- 2.f3#
- 2.f4#
- 1...Qe6
- 2.f3#
- 2.f4#
- 1...Bb1
- 2.Qh1#
- 1...Bc2
- 2.Qh1#
- 1...Bd3
- 2.Qh1#
- 1...Bh3
- 2.g3#
- 1...Be4
- 2.Qh1#
- 1...Bg4
- 2.Sg6#
- 1...Be6
- 2.g6#
- 1...Bg6
- 2.Qh1#
- 1...Bh7
- 2.Qh1#
- 1...d4
- 2.f3#
- 2.f4#
- 1...c5
- 2.f3#
- 2.f4#
- 1...c6
- 2.g6#
- 1...d6
- 2.g6#
- 1...Qxf2
- 1.Qe1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 9
- REMOVED MATES = 2
- Sets
- Q(e);OGATE,XP(B)::QAB(A),XQ(e)
- Q(e);N_GUARD::B(F)+P(E)
- Q(e);N_GUARD,SBLOCK::B(F)+P(E)
- B(c);N_GUARD::S(D)
- B(c);N_GUARD::S(D),XB(c)
- P(g);S_CUTQ(e)::B(F)+P(E)
- P(h);S_CUTQ(e)::B(F)+P(E)
- Tries
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- Q(e);N_GUARD::B(F)+P(E)
- Refutation
- Q(e);
- Try
- Q(A);CHECK
- Vars
- B(c);SBLOCK,XQ(A)::S(D)
- Refutation
- P(d);XQ(A)
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- Q(e);N_GUARD::B(F)+P(E)
- Refutation
- Q(e);XQ(A)
- Try
- Actual
- Q(A);
- Vars
- Q(e);OGATE,P_SPINQ(e),XP(B)::QAB(A),XQ(e)
- Q(e);N_GUARD,P_PINP(G),XB(F)::QAB(A)+P(B)
- Q(e);OGATE::QAB(A)+P(B),XQ(e)
- Q(e);N_GUARD::B(F)+P(E)
- B(c);N_GUARD::QAR(A)
- B(c);SBLOCK::P(C)
- B(c);N_GUARD,SBLOCK::S(D)
- B(c);S_CUTQ(e)::B(F)+P(E)
- P(g);S_CUTQ(e)::B(F)+P(E)
- P(h);S_CUTQ(e)::B(F)+P(E)
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).