MESON Chess Problem Database
Problem Display
PID: 21625 (1Bb5/1pnp1R2/8/1n2k3/rb2N3/2p1P3/B5Q1/5K2 w - - 0 1)
Niemeijer, Meindert
Good Companions (February), 1920
#2
7 + 9
| 5454 | Near Snap | 2013 |
| 56 | The Problemist | 2013 |
SOLUTION
- SOUND
- Tries
- 1.Sd2?
- threat
- 2.Qd5#
- 2.Qh2#
- 2.Qg3#
- 1...Kd6
- 2.Qd5#
- 1...cxd2
- 2.Qd5#
- 1...d5
- 2.Qxd5#
- 1...Ba3
- 2.Qd5#
- 1...Ba5
- 2.Qd5#
- 1...Bc5
- 2.Qd5#
- 1...Bd6
- 2.Qg5#
- 2.Qg7#
- 1...Be7
- 2.Qd5#
- 1...Bf8
- 2.Qd5#
- 1...Sd6
- 2.Qh2#
- 2.Qg3#
- 2.Qg7#
- 1...d6
- 2.Qe4#
- 2.Qh2#
- 2.Qg3#
- 2.Qg7#
- 1...Rxa2!
- threat
- 1.Sf2?
- threat
- 2.Qd5#
- 2.Qh2#
- 2.Qg3#
- 1...Kd6
- 2.Qd5#
- 1...d5
- 2.Qxd5#
- 1...Ba3
- 2.Qd5#
- 1...Ba5
- 2.Qd5#
- 1...Bc5
- 2.Qd5#
- 1...Bd6
- 2.Sd3#
- 2.Qg5#
- 2.Qg7#
- 1...Be7
- 2.Qd5#
- 1...Bf8
- 2.Qd5#
- 1...Sd6
- 2.Sd3#
- 2.Sg4#
- 2.Qh2#
- 2.Qg3#
- 2.Qg7#
- 1...d6
- 2.Sd3#
- 2.Qe4#
- 2.Qh2#
- 2.Qg3#
- 2.Qg7#
- 1...Rxa2!
- threat
- 1.Sxc3?
- threat
- 2.Qd5#
- 2.Qh2#
- 2.Qg3#
- 1...Kd6
- 2.Qd5#
- 1...Rxa2
- 2.Qd5#
- 1...Bxc3
- 2.Qd5#
- 1...d5
- 2.Qxd5#
- 1...Ba3
- 2.Qd5#
- 1...Ba5
- 2.Qd5#
- 1...Bc5
- 2.Qd5#
- 1...Bd6
- 2.Qg5#
- 2.Qg7#
- 1...Be7
- 2.Qd5#
- 1...Bf8
- 2.Qd5#
- 1...Sd6
- 2.Qh2#
- 2.Qg3#
- 2.Qg7#
- 1...d6
- 2.Qe4#
- 2.Qh2#
- 2.Qg3#
- 2.Qg7#
- 1...Sxc3!
- threat
- 1.Sc5?
- threat
- 2.Qd5#
- 2.Qh2#
- 2.Qg3#
- 1...Kd6
- 2.Qd5#
- 1...Bxc5
- 2.Qd5#
- 1...Ba3
- 2.Qd5#
- 1...Ba5
- 2.Qd5#
- 1...Sd6
- 2.Sd3#
- 2.Qh2#
- 2.Qg3#
- 2.Qg7#
- 1...d5
- 2.Qxd5#
- 2.Qh2#
- 2.Qg3#
- 1...d6
- 2.Sd3#
- 2.Qe4#
- 2.Qh2#
- 2.Qg3#
- 2.Qg7#
- 1...Rxa2!
- threat
- 1.Re7+?
- 1...Kf5
- 2.Qg5#
- 1...Bxe7!
- 1...Kf5
- 1.Qf3?
- threat
- 2.Rf5#
- 2.Qf4#
- 2.Qf5#
- 1...Rxa2
- 2.Qf5#
- 1...Sd6
- 2.Qf4#
- 1...Sd4
- 2.Qf4#
- 1...d6
- 2.Qf4#
- 1...d5!
- threat
- 1.Qg4?
- threat
- 2.Rf5#
- 2.Qf5#
- 2.Qf4#
- 1...Rxa2
- 2.Qf5#
- 1...Sd6
- 2.Qf4#
- 1...Sd4
- 2.Qf4#
- 1...d6
- 2.Qf4#
- 1...d5!
- threat
- 1.Sd2?
- Keys
- 1.Sf6!
- threat
- 2.Qd5#
- 1...Kf5
- 2.Sxd7#
- 1...Kd6
- 2.Qd5#
- 1...d5
- 2.Qxd5#
- 1...Bd6
- 2.Qg5#
- 1...Sd6
- 2.Sg4#
- 1...d6
- 2.Qe4#
- threat
- 1.Sf6!
This anticipates 10650(1966), 200090(1982)
This is a version
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- Tries
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- K(e);S_FLIGHT::QAR1(C)
- P(a);XS(E)::QAR1(C)
- P(h);::QAR1(C),XP(h)
- B(c);::QAR1(C)
- Refutation
- R(b);XB(B)
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- K(e);S_FLIGHT::QAR1(C)
- P(h);::QAR1(C),XP(h)
- B(c);::QAR1(C)
- Refutation
- R(b);XB(B)
- Try
- S(E);XP(a)
- Threat
- DUALS(3)
- Vars
- K(e);S_FLIGHT::QAR1(C)
- R(b);XB(B)::QAR1(C)
- B(c);XS(E)::QAR1(C)
- P(h);::QAR1(C),XP(h)
- B(c);::QAR1(C)
- Refutation
- S(d);XS(E)
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- K(e);S_FLIGHT::QAR1(C)
- B(c);XS(E)::QAR1(C)
- B(c);::QAR1(C)
- Refutation
- R(b);XB(B)
- Try
- R(F);CHECK
- Vars
- K(e);N_SPINS(g),P-FLIGHT::QAR1(C)
- Refutation
- B(c);XR(F)
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- R(b);XB(B)::QAR1(C)
- S(d);N_SPINS(g)::QAB1(C)
- S(d);::QAB1(C)
- P(h);N_SPINS(g)::QAB1(C)
- Refutation
- P(h);
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- R(b);XB(B)::QAR1(C)
- S(d);N_SPINS(g)::QAB1(C)
- S(d);::QAB1(C)
- P(h);N_SPINS(g)::QAB1(C)
- Refutation
- P(h);
- Try
- Actual
- S(E);
- Threat
- QAR1(C)
- Vars
- K(e);N_SPINS(g),P-FLIGHT::R(F)+S(E),XP(h)
- K(e);S_FLIGHT::QAR1(C)
- P(h);::QAR1(C),XP(h)
- B(c);N_SPINS(g),SBLOCK::QAR2(C)
- S(d);N_SPINS(g),SBLOCK::S(E)
- P(h);N_SPINS(g),SBLOCK::QAR1(C)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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