MESON Chess Problem Database
Problem Display
PID: 270482 (1B2N3/3K2R1/4P2P/5kN1/2Q2n1p/6bp/1p2Bn2/1b3Rr1 w - - 0 1)
Zilahi, Zoltan
Die Schwalbe, 1931
#2
10 + 9
SOLUTION
- SOUND
- Sets
- 1...Sd1
- 2.Qb5#
- 2.Qd5#
- 2.Qc5#
- 1...Sh1
- 2.Qb5#
- 2.Qd5#
- 2.Qc5#
- 1...S2d3
- 2.Qe4#
- 1...Se4
- 2.Qd5#
- 1...Sg2
- 2.Bg4#
- 2.Qg4#
- 1...S4d3
- 2.Bg4#
- 2.Qe4#
- 2.Qg4#
- 1...Sd5
- 2.Bg4#
- 2.Qg4#
- 1...Sh5
- 2.Bg4#
- 2.Qg4#
- 1...Sxe6
- 2.Bg4#
- 2.Qxe6#
- 2.Qg4#
- 1...Sg6
- 2.Qg4#
- 1...Sd1
- Tries
- 1.Sxh3?
- threat
- 2.Rg5#
- 1...S2xh3
- 2.Bg4#
- 2.Qd5#
- 1...S4xh3
- 2.Bg4#
- 2.Qg4#
- 1...Sxe6
- 2.Bg4#
- 2.Qxe6#
- 2.Qg4#
- 1...Se4
- 2.Bg4#
- 2.Qd5#
- 1...Sg6
- 2.Bg4#
- 2.Rf7#
- 2.Qg4#
- 1...Bh2!
- threat
- 1.Sf7?
- threat
- 2.Rg5#
- 1...Sxe6
- 2.Bg4#
- 2.Qxe6#
- 2.Qg4#
- 1...Se4
- 2.Bg4#
- 2.Qd5#
- 1...Sg6
- 2.Bg4#
- 2.Qg4#
- 1...Bh2!
- threat
- 1.Sh7?
- threat
- 2.Rg5#
- 1...Sxe6
- 2.Bg4#
- 2.Qxe6#
- 2.Qg4#
- 1...Se4
- 2.Bg4#
- 2.Qd5#
- 1...Sg6
- 2.Bg4#
- 2.Rf7#
- 2.Qg4#
- 1...Bh2!
- threat
- 1.Sd6+?
- 1...Kf6
- 2.Qc3#
- 2.Qd4#
- 1...Ke5!
- 1...Kf6
- 1.Rxf2?
- threat
- 2.Qb5#
- 2.Qd5#
- 2.Qc5#
- 1...Bxf2
- 2.Qxf4#
- 1...Rc1
- 2.Qd5#
- 1...Ba2
- 2.Qd3#
- 2.Qc2#
- 2.Qe4#
- 1...Bd3
- 2.Qxd3#
- 2.Qd5#
- 2.Qc5#
- 1...Be4
- 2.Qxe4#
- 1...Rd1+!
- threat
- 1.Qd4?
- threat
- 2.Sd6#
- 2.Qe5#
- 2.Qf6#
- 1...Sxe6
- 2.Bg4#
- 2.Qf6#
- 2.Qg4#
- 1...Sg6
- 2.Qf6#
- 2.Qg4#
- 1...S2d3
- 2.Sd6#
- 2.Qf6#
- 2.Qe4#
- 1...Se4
- 2.Qe5#
- 2.Qd5#
- 1...Sg4
- 2.Sd6#
- 1...Sg2
- 2.Bg4#
- 2.Qf6#
- 2.Qg4#
- 1...S4d3
- 2.Bg4#
- 2.Qf6#
- 2.Qe4#
- 2.Qg4#
- 1...Sd5
- 2.Bg4#
- 2.Qg4#
- 1...Sh5
- 2.Bg4#
- 2.Qg4#
- 1...Sxe2!
- threat
- 1.e7?
- threat
- 2.Qf7#
- 1...Sxe2
- 2.Qe6#
- 1...Sg6
- 2.Qg4#
- 1...Se4
- 2.Qd5#
- 2.Qe6#
- 1...Sg4
- 2.Qe6#
- 1...Sd5
- 2.Bg4#
- 2.Qg4#
- 1...Sh5
- 2.Bg4#
- 2.Qe6#
- 2.Qg4#
- 1...Se6
- 2.Bg4#
- 2.Qxe6#
- 2.Qg4#
- 1...Ba2!
- threat
- 1.Sxh3?
- Keys
- 1.Sf3!
- threat
- 2.Rg5#
- 1...Sxe6
- 2.Qxe6#
- 1...Bh2
- 2.Sxh4#
- 1...Se4
- 2.Sd4#
- 1...Sg6
- 2.Rf7#
- threat
- 1.Sf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- S(d);N_GUARD,P_SPINS(g),S_CUTB(a)::QAB1(C)
- S(d);P_SPINS(g)::QAR2(C)
- S(g);OGATE,P_SPINS(d)::QAB1(C)
- Tries
- Try
- S(D);XP(f)
- Threat
- R1(H)
- Refutation
- B(e);
- Try
- S(D);
- Threat
- R1(H)
- Refutation
- B(e);
- Try
- S(D);
- Threat
- R1(H)
- Refutation
- B(e);
- Try
- S(J);CHECK
- Refutation
- K(i);P-FLIGHT
- Try
- R(A);P_PINS(g),XS(d)
- Threat
- DUALS(3)
- Vars
- B(e);N_GUARD,N_SPINS(g),XR(A)::QAR1(C),XS(g)
- R(b);::QAR2(C)
- B(a);N_GUARD::QAB1(C),XB(a)
- Refutation
- R(b);CHECK
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- S(d);P_SPINS(g)::S(J)
- Refutation
- S(g);P_SPINS(d),XB(B)
- Try
- P(E);
- Threat
- QAR2(C)
- Vars
- S(g);N_GUARD,P_SPINS(d),XB(B)::QAB1(C)
- S(g);OGATE,P_SPINS(d)::QAB1(C)
- S(d);P_SPINS(g)::QAB1(C)
- Refutation
- B(a);
- Try
- Actual
- S(D);
- Threat
- R1(H)
- Vars
- S(g);OGATE,XP(E)::QAB1(C),XS(g)
- B(e);N_GUARD::S(D),XP(h)
- S(d);SBLOCK::S(D)
- S(g);SBLOCK::R(H)
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).