MESON Chess Problem Database
Problem Display
PID: 51990 (3R4/3pp3/1K1N3R/2pkPB1p/1BNr4/2Pp1n2/6Q1/6nq w - - 0 1)
Storozhenko, Ivan Ivanovich
4th Prize, Isaev-100 MT, 2000
#2
10 + 10
| 23 | Die Schwalbe | 2004 |
SOLUTION
- SOUND
- Sets
- 1...Re4
- 2.Bxe4#
- 1...exd6
- 2.Qg8#
- 1...Re4
- Tries
- 1.Rxd7?
- threat
- 2.Be6#
- 1...Rxc4
- 2.Sf7#
- 1...exd6
- 2.Qg8#
- 1...e6
- 2.Bxe6#
- 1...Qh3!
- threat
- 1.Rc8?
- threat
- 2.Rxc5#
- 1...cxb4
- 2.Rc5#
- 1...exd6
- 2.Qg8#
- 1...Rxc4!
- threat
- 1.Qa2?
- threat
- 2.Qa8#
- 1...Sxe5
- 2.Se3#
- 1...exd6
- 2.Rxd6#
- 1...Rxc4!
- threat
- 1.Qg7?
- threat
- 2.Se3#
- 1...Re4
- 2.Bxe4#
- 1...Rxc4!
- threat
- 1.Rxd7?
- Keys
- 1.Sf7!
- threat
- 2.Se3#
- 1...Kxc4
- 2.Qa2#
- 1...Rxc4
- 2.Rxd7#
- 1...Re4
- 2.Be6#
- threat
- 1.Sf7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- R(e);N_GUARD,N_SPINS(d)::B(F),XR(e)
- P(j);N_GUARD,XS(H)::QAB(A)
- Tries
- Try
- R(J);XP(i)
- Threat
- B(F)
- Vars
- R(e);SBLOCK,XS(D)::R(J)+S(H)
- P(j);N_GUARD,P_SPINP(j),XS(H)::QAB(A)
- P(j);::B(F),XP(j)
- Refutation
- Q(b);
- Try
- R(J);
- Threat
- R1(J),XP(f)
- Vars
- P(f);XB(C)::R1(J)
- P(j);N_GUARD,XS(H)::QAB(A)
- Refutation
- R(e);XS(D)
- Try
- Q(A);N_PINS(d)
- Threat
- QAB(A)
- Vars
- S(d);SBLOCK,XP(E)::QAB(A)+S(D),DCHECK
- P(j);OGATE,XS(H)::R1(I),XP(j)
- Refutation
- R(e);P_SPINR(e),XS(D)
- Try
- Q(A);N_PINS(d)
- Threat
- S(D)
- Vars
- R(e);N_GUARD::B(F),XR(e)
- Refutation
- R(e);XS(D)
- Try
- Actual
- S(H);P_PINP(i)
- Threat
- S(D)
- Vars
- K(g);N_SPINP(i),N_SPINS(d),OGATEB,S_FLIGHT,XS(D)::QAB(A)
- R(e);SBLOCK,XS(D)::R(J),XP(i)
- R(e);N_SPINS(d),SBLOCK::B(F)
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).