MESON Chess Problem Database
Problem Display
PID: 52953 (2b1r2B/1p1np1N1/3pR3/bK3Rr1/3k4/Q7/B1p2P2/2Nq1n2 w - - 0 1)
Maleika, Gerhard
Die Schwalbe, 2004
#2
9 + 12
SOLUTION
- SOUND
- Sets
- 1...Qe2+
- 2.Sxe2#
- 1...Qg4
- 2.Qd3#
- 1...Qh5
- 2.Qd3#
- 1...Qe1
- 2.Qd3#
- 1...Qd3+
- 2.Qxd3#
- 1...Rg1
- 2.Rf4#
- 2.Rd5#
- 1...Rg2
- 2.Rf4#
- 2.Rd5#
- 1...Rg3
- 2.Rf4#
- 2.Rd5#
- 1...Rg4
- 2.Rd5#
- 1...Rxf5+
- 2.Sxf5#
- 1...Rg6
- 2.Rf4#
- 2.Rd5#
- 1...Rxg7
- 2.Rf4#
- 2.Rd5#
- 1...Bd2
- 2.Qd3#
- 1...Bb4
- 2.Qxb4#
- 1...Bb6
- 2.Qb2#
- 2.Qb4#
- 1...Bc7
- 2.Qb2#
- 2.Qb4#
- 1...Bd8
- 2.Qb2#
- 2.Qb4#
- 1...Sd2
- 2.Qd3#
- 2.Qe3#
- 1...Sh2
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 2.fxe3#
- 1...Sg3
- 2.Qe3#
- 1...Se5
- 2.Rf4#
- 1...d5
- 2.Rf4#
- 1...Qe2+
- Tries
- 1.Sxe8+?
- 1...Rg7
- 2.Rf4#
- 2.Rd5#
- 1...Se5
- 2.Rf4#
- 1...Sf6!
- 1...Rg7
- 1.Rxg5?
- threat
- 2.Sf5#
- 2.Rd5#
- 1...Qe2+
- 2.Sxe2#
- 1...Qd3+
- 2.Qxd3#
- 1...Sf6
- 2.Sf5#
- 1...Qf3
- 2.Sf5#
- 1...Qh5
- 2.Sf5#
- 2.Qd3#
- 1...Se3
- 2.Sf5#
- 2.Qxe3#
- 2.fxe3#
- 1...Sb6
- 2.Sf5#
- 2.Sxe8#
- 1...d5
- 2.Sf5#
- 2.Rxd5#
- 1...Se5!
- threat
- 1.Qb3?
- threat
- 2.Qc4#
- 1...Qe2+
- 2.Sxe2#
- 1...Qd3+
- 2.Qxd3#
- 1...Rxf5+
- 2.Sxf5#
- 1...Se5
- 2.Rf4#
- 1...Sd2
- 2.Qd3#
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 2.fxe3#
- 1...d5
- 2.Rf4#
- 1...Sb6!
- threat
- 1.Qa4+?
- 1...Bb4
- 2.Qxb4#
- 1...Kc3!
- 1...Bb4
- 1.Sxe8+?
- Keys
- 1.Re3!
- threat
- 2.Sb3#
- 2.Se6#
- 1...Qe2+
- 2.Sxe2#
- 1...Qd3+
- 2.Qxd3#
- 1...Rxf5+
- 2.Sxf5#
- 1...Qxc1
- 2.Se6#
- 2.Qd3#
- 1...Rxg7
- 2.Sb3#
- 2.Rf4#
- 2.Rd5#
- 1...Sxe3
- 2.Qxe3#
- 1...Sf6
- 2.Sb3#
- 1...Sd2
- 2.Se6#
- 2.Qd3#
- 1...Sc5
- 2.Se6#
- 1...Se5
- 2.Rf4#
- 1...e5
- 2.Qxd6#
- 1...e6
- 2.Sb3#
- 2.Sxe6#
- 2.Qxd6#
- threat
- 1.Re3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 9
- Sets
- Q(a);CHECK,N_GUARD::S(A),XQ(a)
- Q(a);N_GUARD::QAR1(D)
- Q(a);CHECK,N_GUARD::QAR1(D),XQ(a)
- R(f);N_GUARD,N_PINR(F)::R1(F)
- R(f);CHECK,XR(F)::B(I)+S(H),DCHECK,XR(f)
- B(e);S_CUTQ(a)::QAR1(D)
- B(e);N_GUARD::QAR2(D),XB(e)
- S(b);N_GUARD::QAB1(D)
- S(i);N_PINR(F)::R(F)
- P(g);N_PINR(F)::R(F)
- Tries
- Try
- S(H);CHECK,XR(l)
- Vars
- S(i);N_PINR(F),P_SPINS(i)::R(F)
- Refutation
- S(i);P_SPINS(i)
- Try
- R(F);N_SPINR(F),XR(f)
- Threat
- DUALS(2)
- Vars
- Q(a);CHECK,N_GUARD::S(A),XQ(a)
- Q(a);CHECK,N_GUARD::QAR1(D),XQ(a)
- S(i);::S(H)
- Q(a);::B(I)+S(H),DCHECK
- Refutation
- S(i);
- Try
- Q(D);
- Threat
- QAR1(D)
- Vars
- Q(a);CHECK,N_GUARD::S(A),XQ(a)
- Q(a);CHECK,N_GUARD::QAR1(D),XQ(a)
- R(f);CHECK,XR(F)::B(I)+S(H),DCHECK,XR(f)
- S(i);N_PINR(F)::R(F)
- P(g);N_PINR(F)::R(F)
- Refutation
- S(i);
- Try
- Q(D);CHECK
- Vars
- B(e);N_GUARD,P_SPINB(e)::QAR2(D),XB(e)
- Refutation
- K(d);S_FLIGHT
- Try
- Actual
- R(G);
- Threat
- DUALS(2)
- Vars
- Q(a);CHECK,N_GUARD::S(A),XQ(a)
- Q(a);CHECK,N_GUARD::QAR1(D),XQ(a)
- R(f);CHECK,XR(F)::B(I)+S(H),DCHECK,XR(f)
- S(b);OGATE,XR(G)::QAB1(D),XS(b)
- S(i);::S(A)
- S(i);N_PINR(F)::B(I)+S(H),DCHECK
- S(i);N_PINR(F)::R(F)
- P(j);N_GUARD,N_PINR(F)::QAR2(D),XP(g)
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).