MESON Chess Problem Database
Problem Display
PID: 260966 (r3q3/1B1P1b2/2R3p1/3n1n2/2N5/3QPk1P/2p3Rp/2b1B2K w - - 0 1)
Handloser, Ralf Chris
8th Comm., Neue Zurcher Zeitung, 2009
#2
10 + 10
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Qxd7
- 2.Se5#
- 1...Qe4
- 2.Qf1#
- 2.Qe2#
- 1...Qe5
- 2.Sxe5#
- 1...Qc8
- 2.Se5#
- 1...Qd8
- 2.Se5#
- 1...Qf8
- 2.Se5#
- 1...Qg8
- 2.Se5#
- 1...Bb2
- 2.Sd2#
- 1...Bd2
- 2.Sxd2#
- 1...Ba3
- 2.Sd2#
- 1...Be6
- 2.Se5#
- 1...Sde7
- 2.Se5#
- 1...Sxe3
- 2.Rf6#
- 1...Sg3+
- 2.Rxg3#
- 1...Sd4
- 2.Rg3#
- 1...Sh4
- 2.Rg3#
- 1...Sd6
- 2.Rg3#
- 1...Sh6
- 2.Rg3#
- 1...Sfe7
- 2.Se5#
- 2.Rg3#
- 1...Sg7
- 2.Rg3#
- 1...Qxd7
- Tries
- 1.Kxh2?
- threat
- 2.Rf2#
- 1...Qe5+
- 2.Sxe5#
- 1...Qb8+!
- threat
- 1.Re6?
- threat
- 2.Se5#
- 2.Bxd5#
- 2.Qf1#
- 2.Qe2#
- 2.Qe4#
- 2.Qxd5#
- 1...Sg3+
- 2.Rxg3#
- 1...Qxd7
- 2.Se5#
- 2.Qf1#
- 2.Qe2#
- 2.Qe4#
- 1...Bxe3
- 2.Qe4#
- 1...Bxe6
- 2.Se5#
- 1...Sxe3
- 2.Rf6#
- 2.Qe4#
- 1...Qb8
- 2.Bxd5#
- 2.Qf1#
- 2.Qe2#
- 2.Qe4#
- 2.Qxd5#
- 1...Qh8
- 2.Bxd5#
- 2.Qf1#
- 2.Qe2#
- 2.Qe4#
- 2.Qxd5#
- 1...Ra5
- 2.Se5#
- 2.Qf1#
- 2.Qe2#
- 2.Qe4#
- 1...Bb2
- 2.Sd2#
- 2.Bxd5#
- 2.Qf1#
- 2.Qe2#
- 2.Qe4#
- 2.Qxd5#
- 1...Sd4
- 2.Se5#
- 2.Bxd5#
- 2.Rg3#
- 2.Qf1#
- 2.Qe4#
- 1...Sd6
- 2.Se5#
- 2.Rg3#
- 2.Qf1#
- 2.Qe2#
- 1...Se7
- 2.Se5#
- 2.Rg3#
- 2.Qf1#
- 2.Qe2#
- 2.Qe4#
- 1...Qxe6!
- threat
- 1.Rcxg6?
- threat
- 2.Rf2#
- 2.Qxf5#
- 1...Sg3+
- 2.R2xg3#
- 2.R6xg3#
- 1...Qxd7
- 2.Se5#
- 2.Rf2#
- 1...Qxe3
- 2.Rf2#
- 1...Bxe3
- 2.Rf2#
- 1...Sxe3
- 2.Rf2#
- 2.Rf6#
- 1...Qe4
- 2.Rf2#
- 2.Qf1#
- 2.Qe2#
- 1...Qe5
- 2.Sxe5#
- 2.Rf2#
- 1...Qe6
- 2.Rf2#
- 1...Qb8
- 2.Rf2#
- 1...Be6
- 2.Se5#
- 2.Rf2#
- 1...Sd4
- 2.Rf2#
- 2.R2g3#
- 2.R6g3#
- 1...Sh4
- 2.Rf2#
- 2.R2g3#
- 2.R6g3#
- 1...Sd6
- 2.Rf2#
- 2.R2g3#
- 2.R6g3#
- 1...Sh6
- 2.Rf2#
- 2.R2g3#
- 2.R6g3#
- 1...Se7
- 2.Se5#
- 2.Rf2#
- 2.R2g3#
- 2.R6g3#
- 1...Sg7
- 2.Rf2#
- 2.R2g3#
- 2.R6g3#
- 1...Bxg6!
- threat
- 1.Qxf5+?
- 1...Sf4
- 2.Re6#
- 2.Qxf4#
- 1...gxf5!
- 1...Sf4
- 1.dxe8Q?
- threat
- 2.Se5#
- 2.Qf1#
- 2.Qe2#
- 2.Qde4#
- 2.Qee4#
- 1...Sg3+
- 2.Rxg3#
- 1...Bxe3
- 2.Qde4#
- 2.Qee4#
- 1...Bxe8
- 2.Se5#
- 2.Qxd5#
- 1...Sdxe3
- 2.Qde4#
- 2.Qee4#
- 1...Sfxe3
- 2.Rf6#
- 2.Qde4#
- 2.Qee4#
- 1...Bb2
- 2.Sd2#
- 2.Qf1#
- 2.Qe2#
- 2.Qde4#
- 2.Qee4#
- 1...Be6
- 2.Se5#
- 1...Sc3
- 2.Se5#
- 2.Qf1#
- 1...Sf4
- 2.Se5#
- 2.Qf1#
- 2.Qde4#
- 2.Qee4#
- 1...Sf6
- 2.Se5#
- 2.Qf1#
- 2.Qe2#
- 1...Sde7
- 2.Se5#
- 1...Sd4
- 2.Se5#
- 2.Rg3#
- 2.Qf1#
- 2.Qde4#
- 2.Qee4#
- 1...Sd6
- 2.Se5#
- 2.Rg3#
- 2.Qf1#
- 2.Qe2#
- 1...Sfe7
- 2.Se5#
- 2.Rg3#
- 1...Rxe8!
- threat
- 1.dxe8R?
- threat
- 2.Se5#
- 2.Qf1#
- 2.Qe2#
- 2.Qe4#
- 1...Sg3+
- 2.Rxg3#
- 1...Bxe3
- 2.Qe4#
- 1...Bxe8
- 2.Se5#
- 2.Qxd5#
- 1...Sdxe3
- 2.Qe4#
- 1...Sfxe3
- 2.Rf6#
- 2.Qe4#
- 1...Bb2
- 2.Sd2#
- 2.Qf1#
- 2.Qe2#
- 2.Qe4#
- 1...Be6
- 2.Se5#
- 1...Sc3
- 2.Se5#
- 2.Qf1#
- 1...Sf4
- 2.Se5#
- 2.Qf1#
- 2.Qe4#
- 1...Sf6
- 2.Se5#
- 2.Qf1#
- 2.Qe2#
- 1...Sde7
- 2.Se5#
- 1...Sd4
- 2.Se5#
- 2.Rg3#
- 2.Qf1#
- 2.Qe4#
- 1...Sd6
- 2.Se5#
- 2.Rg3#
- 2.Qf1#
- 2.Qe2#
- 1...Sfe7
- 2.Se5#
- 2.Rg3#
- 1...Rxe8!
- threat
- 1.Kxh2?
- Keys
- 1.Rg4!
- threat
- 2.Qf1#
- 1...Sg3+
- 2.Rxg3#
- 1...Qxe3
- 2.Se5#
- 1...Bxe3
- 2.Sd2#
- 1...Sdxe3
- 2.Re6#
- 1...Sfxe3
- 2.Rf6#
- 1...Sf4
- 2.Rxf4#
- threat
- 1.Rg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 16
- Sets
- Q(j);N_GUARD,XP(J)::S(G)
- Q(j);N_GUARD::S(G),XQ(j)
- Q(j);N_GUARD::S(G)
- B(a);N_GUARD::S(G)
- B(a);N_GUARD::S(G),XB(a)
- B(h);S_CUTQ(j)::S(G)
- S(e);S_CUTQ(j)::S(G)
- S(f);OGATEB,P_SPINS(f),XP(E)::R(H)
- S(f);CHECK,N_GUARD::R1(C),XS(f)
- S(f);N_GUARD::R1(C)
- Tries
- Try
- K(B);P-FLIGHT,XP(c)
- Threat
- R1(C)
- Vars
- Q(j);CHECK,N_GUARD::S(G),XQ(j)
- Refutation
- Q(j);CHECK
- Try
- R(H);P_PINS(e)
- Threat
- DUALS(6)
- Vars
- S(f);CHECK,N_GUARD::R1(C),XS(f)
- B(a);P_SPINB(a),XP(E)::QAB1(D)
- B(h);XR(H)::S(G)
- Refutation
- Q(j);XR(H)
- Try
- R(H);P_PINS(e),XP(g)
- Threat
- DUALS(2)
- Vars
- Q(j);P_SPINQ(j),XP(E)::R1(C)
- B(a);P_SPINB(a),XP(E)::R1(C)
- Q(j);::R1(C)
- Refutation
- B(h);XR(H)
- Try
- Q(D);CHECK,XS(f)
- Refutation
- P(g);XQ(D)
- Try
- P(J);XQ(j)
- Threat
- DUALS(5)
- Vars
- S(f);CHECK,N_GUARD::R1(C),XS(f)
- B(h);::S(G)
- S(e);::S(G)
- Refutation
- R(i);XQ(J)
- Try
- P(J);XQ(j)
- Threat
- DUALS(4)
- Vars
- S(f);CHECK,N_GUARD::R1(C),XS(f)
- B(a);P_SPINB(a),XP(E)::QAB1(D)
- S(e);P_SPINS(e),XP(E)::QAB1(D)
- B(h);::S(G)
- S(e);::S(G)
- Refutation
- R(i);XR(J)
- Try
- Actual
- R(C);
- Threat
- QAR2(D)
- Vars
- S(f);CHECK,N_GUARD::R1(C),XS(f)
- Q(j);N_GUARD,P_SPINQ(j),XP(E)::S(G)
- B(a);N_GUARD,P_SPINB(a),XP(E)::S(G)
- S(e);OGATEB,P_SPINS(e),XP(E)::B(I)+R(H)
- S(f);OGATEB,P_SPINS(f),XP(E)::R(H)
- S(e);N_GUARD::R1(C),XS(e)
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).