MESON Chess Problem Database
Problem Display
PID: 198328 (1B3KB1/6p1/8/2p1pQ2/3k2qR/1p1N1b2/7b/n2N2n1 w - - 0 1)
Hartong, Jan
Niemeijer, Meindert
Western Daily Mercury, 1920
(First published on Fri Aug 6 1920)
#2
7 + 10
| 6490 | yacpdb | 2019 |
| 15239 | Valois Notebooks | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qe4
- 2.Qd7#
- 1...Qf4
- 2.Bxe5#
- 1...c4
- 2.Ba7#
- 1...e4
- 2.Qd5#
- 1...Qe4
- Tries
- 1.Sc1?
- threat
- 2.Qd3#
- 1...c4
- 2.Ba7#
- 1...Qe4
- 2.Qd7#
- 1...Qf4
- 2.Bxe5#
- 1...Be4
- 2.Qf2#
- 1...e4
- 2.Qd5#
- 1...Be2!
- threat
- 1.Se1?
- threat
- 2.Qd3#
- 1...c4
- 2.Ba7#
- 1...Qe4
- 2.Qd7#
- 1...Qf4
- 2.Bxe5#
- 1...Be4
- 2.Qf2#
- 1...e4
- 2.Qd5#
- 1...Be2!
- threat
- 1.S3b2?
- threat
- 2.Qd3#
- 1...c4
- 2.Ba7#
- 1...Qe4
- 2.Qd7#
- 1...Qf4
- 2.Bxe5#
- 1...Be4
- 2.Qf2#
- 1...e4
- 2.Qd5#
- 1...Be2!
- threat
- 1.S3f2?
- threat
- 2.Qd3#
- 1...c4
- 2.Ba7#
- 1...Be2
- 2.Qd7#
- 1...Qe4
- 2.Qd7#
- 1...Qf4
- 2.Bxe5#
- 1...e4
- 2.Qd5#
- 1...Be4!
- threat
- 1.Sxe5?
- threat
- 2.Qd3#
- 1...Bxe5
- 2.Bxe5#
- 1...c4
- 2.Ba7#
- 1...Be2
- 2.Sc6#
- 1...Qe4
- 2.Qd7#
- 1...Be4
- 2.Qf2#
- 1...Qf4!
- threat
- 1.Rxg4+?
- 1...Bf4
- 2.Bxe5#
- 1...Be4
- 2.Qxe4#
- 2.Qd7#
- 1...e4
- 2.Qd5#
- 1...Bxg4!
- 1...Bf4
- 1.Qd7+?
- 1...Bd5
- 2.Qxd5#
- 1...Ke4!
- 1...Bd5
- 1.Sc1?
- Keys
- 1.Sb4!
- threat
- 2.Qd3#
- 1...cxb4
- 2.Ba7#
- 1...c4
- 2.Ba7#
- 1...Be2
- 2.Sc6#
- 1...Qe4
- 2.Qd7#
- 1...Qf4
- 2.Bxe5#
- 1...Be4
- 2.Qf2#
- 1...e4
- 2.Qd5#
- threat
- 1.Sb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- Q(g);S_CUTB(e)::QAR(D)
- Q(g);P_PINQ(D),S_CUTB(c)::B(E),XP(i)
- P(h);OGATEB::B(E)
- P(i);N_SPINQ(g),OGATE::QAR1(D)
- Tries
- Try
- S(B);
- Threat
- QAR1(D)
- Vars
- P(h);OGATEB::B(E)
- Q(g);S_CUTB(e)::QAR(D)
- Q(g);P_PINQ(D),S_CUTB(c)::B(E),XP(i)
- B(e);N_SPINQ(g),OGATE,SBLOCK::QAB(D)
- P(i);N_SPINQ(g),OGATE::QAR1(D)
- Refutation
- B(e);
- Try
- S(B);
- Threat
- QAR1(D)
- Vars
- P(h);OGATEB::B(E)
- Q(g);S_CUTB(e)::QAR(D)
- Q(g);P_PINQ(D),S_CUTB(c)::B(E),XP(i)
- B(e);N_SPINQ(g),OGATE,SBLOCK::QAB(D)
- P(i);N_SPINQ(g),OGATE::QAR1(D)
- Refutation
- B(e);
- Try
- S(B);
- Threat
- QAR1(D)
- Vars
- P(h);OGATEB::B(E)
- Q(g);S_CUTB(e)::QAR(D)
- Q(g);P_PINQ(D),S_CUTB(c)::B(E),XP(i)
- B(e);N_SPINQ(g),OGATE,SBLOCK::QAB(D)
- P(i);N_SPINQ(g),OGATE::QAR1(D)
- Refutation
- B(e);
- Try
- S(B);
- Threat
- QAR1(D)
- Vars
- P(h);OGATEB::B(E)
- B(e);N_GUARD::QAR(D)
- Q(g);S_CUTB(e)::QAR(D)
- Q(g);P_PINQ(D),S_CUTB(c)::B(E),XP(i)
- P(i);N_SPINQ(g),OGATE::QAR1(D)
- Refutation
- B(e);N_SPINQ(g)
- Try
- S(B);XP(i)
- Threat
- QAR1(D)
- Vars
- B(c);OGATE,XS(B)::B(E),XB(c)
- P(h);OGATEB::B(E)
- B(e);N_GUARD::S(B)
- Q(g);S_CUTB(e)::QAR(D)
- B(e);N_SPINQ(g),OGATE,SBLOCK::QAB(D)
- Refutation
- Q(g);P_PINQ(D)
- Try
- R(C);CHECK,XQ(g)
- Vars
- B(c);P_SPINB(c)::B(E),XP(i)
- P(i);OGATE,P_SPINP(i)::QAR1(D)
- Refutation
- B(e);XR(C)
- Try
- Q(D);CHECK
- Vars
- B(e);N_GUARD,P_SPINB(e)::QAR1(D),XB(e)
- Refutation
- K(f);P-FLIGHT
- Try
- Actual
- S(B);
- Threat
- QAR1(D)
- Vars
- P(h);OGATEB,XS(B)::B(E)
- P(h);OGATEB::B(E)
- B(e);N_GUARD::S(B)
- Q(g);S_CUTB(e)::QAR(D)
- Q(g);P_PINQ(D),S_CUTB(c)::B(E),XP(i)
- B(e);N_SPINQ(g),OGATE,SBLOCK::QAB(D)
- P(i);N_SPINQ(g),OGATE::QAR1(D)
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).