MESON Chess Problem Database
Problem Display
PID: 141572 (2nr4/5QNb/5R1B/2p1p3/3pk3/5Np1/K3B3/4b3 w - - 0 1)
Wielgos, Oskar
4/5 HM., Die Schwalbe, 1965/I
#2
7 + 9
| 23 | Die Schwalbe | 1969 |
SOLUTION
- SOUND
- Sets
- 1...Re8
- 2.Qb7#
- 1...Rf8
- 2.Qb7#
- 1...Rg8
- 2.Qb7#
- 1...Rh8
- 2.Qb7#
- 1...Bd2
- 2.Sxd2#
- 1...Bf2
- 2.Sd2#
- 1...Re8
- Tries
- 1.Sxe1?
- threat
- 2.Bd3#
- 2.Bf3#
- 1...c4
- 2.Bf3#
- 1...d3!
- threat
- 1.Se6?
- threat
- 2.Sxc5#
- 1...Kd5
- 2.Seg5#
- 1...Rd5
- 2.Qxh7#
- 1...c4
- 2.Sc5#
- 1...Bb4!
- threat
- 1.Rf4+?
- 1...exf4
- 2.Qe6#
- 1...Ke3!
- 1...exf4
- 1.Rg6?
- threat
- 2.Rg4#
- 1...Bd2
- 2.Sxd2#
- 1...Bxg6!
- threat
- 1.Qe6?
- threat
- 2.Qxe5#
- 1...Rd5
- 2.Qg4#
- 1...Re8
- 2.Qc6#
- 1...Bg8!
- threat
- 1.Sxe1?
- Keys
- 1.Re6!
- threat
- 2.Rxe5#
- 1...Kd5
- 2.Qb7#
- 1...Rd5
- 2.Qf4#
- 1...Re8
- 2.Qb7#
- threat
- 1.Re6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- R(i);N_GUARD::QAB(F)
- B(a);N_GUARD::S(C),XB(a)
- B(a);N_GUARD::S(C)
- Tries
- Try
- S(C);XB(a)
- Threat
- DUALS(2)
- Vars
- P(e);::B(B)
- Refutation
- P(c);
- Try
- S(G);
- Threat
- S(G),XP(e)
- Vars
- K(d);S_FLIGHT::QAB(F)+S(G)
- R(i);SBLOCK::QAB(F),XB(g)
- P(e);::S(G)
- Refutation
- B(a);
- Try
- R(D);CHECK
- Vars
- P(f);XR(D)::QAR2(F)
- Refutation
- K(d);P-FLIGHT
- Try
- R(D);
- Threat
- R(D)
- Vars
- B(a);N_GUARD::S(C),XB(a)
- Refutation
- B(g);XR(D)
- Try
- Q(F);P_PINP(f)
- Threat
- QAR1(F),XP(f)
- Vars
- R(i);SBLOCK::QAR2(F)
- R(i);N_GUARD::QAB(F)
- Refutation
- B(g);P_PINQ(F)
- Try
- Actual
- R(D);P_PINP(f)
- Threat
- R1(D),XP(f)
- Vars
- K(d);N_SPINP(f),S_FLIGHT::QAB(F)
- R(i);SBLOCK::QAR1(F)
- R(i);N_GUARD::QAB(F)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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