MESON Chess Problem Database
Problem Display
PID: 139382 (4r3/8/4nN2/4p2q/1Bpk1PQN/rn1p1P2/B1R1PP1p/2b4K w - - 0 1)
Maleika, Gerhard
Comm., Rochade Europa, 2008-2009
#2
11 + 11
| 1106 | Rochade Europa | 2010 |
| 23 | Die Schwalbe | 2012 |
SOLUTION
- SOUND
- Sets
- 1...Qf7
- 2.Sf5#
- 1...Qf5
- 2.Sxf5#
- 1...Qh6
- 2.Sf5#
- 1...Qh8
- 2.Sf5#
- 1...Bb2
- 2.e3#
- 1...Bxf4
- 2.e3#
- 1...Sa1
- 2.Rxc4#
- 1...Sd2
- 2.e3#
- 1...Sbc5
- 2.Rxc4#
- 1...Sec5
- 2.Bc3#
- 1...Sg5
- 2.Sf5#
- 2.Qd7#
- 1...Sg7
- 2.Qd7#
- 1...Sd8
- 2.Qd7#
- 1...Qf7
- Tries
- 1.Qxe6?
- threat
- 2.Rxc4#
- 2.Qxc4#
- 2.Qd5#
- 2.Qd7#
- 2.Qd6#
- 1...Qxf3+
- 2.Sxf3#
- 1...dxc2
- 2.Qd5#
- 2.Qd7#
- 2.Qd6#
- 1...dxe2
- 2.Qxc4#
- 2.Qd5#
- 2.Qd7#
- 2.Qd6#
- 1...exf4
- 2.Rxc4#
- 1...Qg4
- 2.Rxc4#
- 2.Qxc4#
- 2.Qd5#
- 2.Qd6#
- 1...Qf7
- 2.Sf5#
- 2.Rxc4#
- 1...Qf5
- 2.Sxf5#
- 2.Rxc4#
- 2.Qxc4#
- 2.Qd5#
- 2.Qd6#
- 1...Qh7
- 2.Rxc4#
- 2.Qxc4#
- 2.Qd5#
- 2.Qd6#
- 1...Ra5
- 2.Rxc4#
- 2.Qxc4#
- 1...Ra6
- 2.Rxc4#
- 2.Qxc4#
- 2.Qd5#
- 1...Ra7
- 2.Rxc4#
- 2.Qxc4#
- 2.Qd5#
- 2.Qd6#
- 1...Re7
- 2.Rxc4#
- 2.Qxc4#
- 2.Qd5#
- 2.Qd6#
- 1...Rc8
- 2.Qd5#
- 2.Qd7#
- 2.Qd6#
- 1...Rd8
- 2.Rxc4#
- 2.Qxc4#
- 1...Sd2
- 2.Qd5#
- 2.Qd7#
- 2.Qb6#
- 2.Qd6#
- 2.e3#
- 1...Sa5
- 2.Qd5#
- 2.Qd7#
- 2.Qb6#
- 2.Qd6#
- 1...Sc5
- 2.Rxc4#
- 2.Qxc4#
- 2.Qd5#
- 2.Qd6#
- 1...c3
- 2.Qd5#
- 1...e4
- 2.Rxc4#
- 2.Qxc4#
- 1...Rxe6!
- threat
- 1.Qg6?
- threat
- 2.Qe4#
- 1...Qxf3+
- 2.Sxf3#
- 1...Qf5
- 2.Sxf5#
- 1...Qh7
- 2.Sf5#
- 1...Sd2
- 2.e3#
- 1...Sbc5
- 2.Rxc4#
- 1...Sec5
- 2.Bc3#
- 1...Sg5
- 2.Sf5#
- 1...e4
- 2.Qxe4#
- 1...Qxg6!
- threat
- 1.Qxe6?
- Keys
- 1.Qf5!
- threat
- 2.Qe4#
- 1...Qxf3+
- 2.Sxf3#
- 1...Qxf5
- 2.Sxf5#
- 1...Qg6
- 2.Qxe5#
- 1...Qh7
- 2.Qxe5#
- 1...Sd2
- 2.e3#
- 1...Sbc5
- 2.Rxc4#
- 1...Sec5
- 2.Bc3#
- 1...Sg5
- 2.Qd7#
- 1...e4
- 2.Bc3#
- 2.Qxe4#
- threat
- 1.Qf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 8
- Sets
- Q(i);N_GUARD::S(J)
- Q(i);N_GUARD::S(J),XQ(i)
- B(a);N_GUARD::P(D)
- B(a);N_GUARD,P_SPINB(a),XP(H)::P(D)
- S(d);::R1(C),XP(f)
- S(d);S_CUTB(a)::P(D)
- S(j);SBLOCK::B(G)
- S(j);OGATE::QAR(I)
- Tries
- Try
- Q(I);XS(j)
- Threat
- DUALS(5)
- Vars
- Q(i);CHECK,XP(F)::S(J),XQ(i)
- P(h);XP(H)::R1(C),XP(f)
- P(f);::QAR1(I)
- Refutation
- R(k);XQ(I)
- Try
- Q(I);
- Threat
- QAR1(I)
- Vars
- Q(i);CHECK,XP(F)::S(J),XQ(i)
- Q(i);N_GUARD::S(J),XQ(i)
- Q(i);N_GUARD::S(J)
- S(d);S_CUTB(a)::P(D)
- S(d);::R1(C),XP(f)
- S(j);SBLOCK::B(G)
- S(j);S_CUTQ(i)::S(J)
- P(h);::QAR1(I),XP(h)
- Refutation
- Q(i);XQ(I)
- Try
- Actual
- Q(I);
- Threat
- QAR1(I)
- Vars
- Q(i);CHECK,XP(F)::S(J),XQ(i)
- Q(i);XQ(I)::S(J),XQ(i)
- Q(i);N_GUARD::QAB1(I),XP(h)
- S(d);S_CUTB(a)::P(D)
- S(d);::R1(C),XP(f)
- S(j);SBLOCK::B(G)
- S(j);OGATE::QAR(I)
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).