MESON Chess Problem Database
Problem Display
PID: 287186 (n3R1n1/Bb2p3/3p2Q1/R2qk1p1/2Bp1pr1/2r3P1/2NNP3/3K2b1 w - - 0 1)
Forster, Klaus
Problem-Forum, 2008
#2
10 + 13
SOLUTION
- SOUND
- Sets
- 1...Qxa5
- 2.Qe6#
- 1...Qb5
- 2.Qe6#
- 1...Qc5
- 2.Qe6#
- 1...Rxc2
- 2.Sf3#
- 1...Re3
- 2.Bxd4#
- 1...Rf3
- 2.Sxf3#
- 1...Rxc4
- 2.Sf3#
- 2.Sxc4#
- 1...Bh2
- 2.Bxd4#
- 1...Be3
- 2.Sf3#
- 1...Ba6
- 2.Rxd5#
- 1...Bc8
- 2.Rxd5#
- 1...Sf6
- 2.Rxe7#
- 1...Sh6
- 2.Rxe7#
- 1...d3
- 2.Sf3#
- 1...e6
- 2.Rxe6#
- 2.Qxe6#
- 1...Qxa5
- Tries
- 1.Bd3?
- threat
- 2.Sf3#
- 2.Qf5#
- 1...Qxa5
- 2.Qf5#
- 1...Rxg3
- 2.Qf5#
- 1...fxg3
- 2.Qf5#
- 1...Qb5
- 2.Qf5#
- 1...Qc5
- 2.Qf5#
- 1...Sf6
- 2.Rxe7#
- 2.Qf5#
- 1...Rc5
- 2.Qf5#
- 1...Bc8
- 2.Sf3#
- 1...Sh6
- 2.Sf3#
- 2.Rxe7#
- 1...f3
- 2.Sxf3#
- 2.Qf5#
- 1...Rxd3!
- threat
- 1.Bb8?
- threat
- 2.Bxd6#
- 1...Sf6
- 2.Rxe7#
- 1...e6
- 2.Rxe6#
- 2.Qxe6#
- 1...Sc7!
- threat
- 1.Rf8?
- threat
- 2.Rf5#
- 2.Qe4#
- 2.Qf5#
- 1...Qxa5
- 2.Rf5#
- 2.Qf5#
- 2.Qe6#
- 1...fxg3
- 2.Rf5#
- 2.Qf5#
- 1...Qb5
- 2.Rf5#
- 2.Qf5#
- 2.Qe6#
- 1...Qc5
- 2.Rf5#
- 2.Qf5#
- 2.Qe6#
- 1...Re3
- 2.Bxd4#
- 2.Rf5#
- 2.Qf5#
- 1...Bc8
- 2.Rxd5#
- 2.Qe4#
- 1...Sh6
- 2.Qe4#
- 1...f3
- 2.Rf5#
- 2.Qf5#
- 1...e6
- 2.Qe4#
- 1...Sf6!
- threat
- 1.e3?
- threat
- 2.Sf3#
- 2.Bxd4#
- 1...Qxa5
- 2.Bxd4#
- 2.Qe6#
- 1...Rxe3
- 2.Bxd4#
- 1...Rxc4
- 2.Sf3#
- 2.Sxc4#
- 1...Rxg3
- 2.Bxd4#
- 1...Bxe3
- 2.Sf3#
- 1...dxe3
- 2.Bd4#
- 1...fxe3
- 2.Sf3#
- 1...fxg3
- 2.Sf3#
- 1...Sf6
- 2.Rxe7#
- 1...Qb5
- 2.Bxd4#
- 2.Qe6#
- 1...Qc5
- 2.Qe6#
- 1...Sb6
- 2.Sf3#
- 1...d3
- 2.Sf3#
- 2.Bd4#
- 1...f3
- 2.Sxf3#
- 1...Rd3!
- threat
- 1.Bd3?
- Keys
- 1.e4!
- threat
- 2.Qf5#
- 1...dxe4 ep
- 2.Bd4#
- 1...fxe4 ep
- 2.Sf3#
- 1...Bc8
- 2.Rxd5#
- 1...Sh6
- 2.Rxe7#
- threat
- 1.e4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 11
- Sets
- Q(f);N_SPINQ(f),XR(G)::QAR1(H)
- Q(f);::QAR1(H)
- R(b);N_GUARD,XS(B)::S(C)
- R(b);S_CUTB(a)::B(I),XP(c)
- R(b);N_GUARD::S(C),XR(b)
- B(a);N_GUARD::B(I),XP(c)
- B(a);S_CUTR(b)::S(C)
- B(j);N_GUARD::R1(G),XQ(f)
- S(m);N_GUARD::R(J),XP(k)
- P(c);S_CUTR(b)::S(C)
- Tries
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- Q(f);N_SPINQ(f),XR(G)::QAR1(H)
- R(e);XP(E)::QAR1(H)
- P(d);XP(E)::QAR1(H)
- Q(f);::QAR1(H)
- R(b);N_SPINQ(f)::QAR1(H)
- B(j);::S(C)
- Refutation
- R(b);P_PINS(C),XB(F)
- Try
- B(I);N_PINP(k),P_PINP(i)
- Threat
- B(I),XP(i)
- Vars
- S(m);N_GUARD::R(J),XP(k)
- Refutation
- S(l);N_SPINP(i),P_SPINP(k)
- Try
- R(J);N_PINP(k)
- Threat
- DUALS(3)
- Vars
- S(m);::QAR1(H)
- P(k);SBLOCK::QAR1(H)
- Refutation
- S(m);
- Try
- P(D);
- Threat
- DUALS(2)
- Vars
- R(b);XP(D)::B(I),XP(c)
- R(e);XP(E)::B(I),XP(c)
- B(a);XP(D)::S(C)
- P(c);P_PINS(C),XP(D)::B(I)
- P(d);XP(D)::S(C)
- P(d);XP(E)::S(C)
- S(m);N_GUARD::R(J),XP(k)
- Q(f);::QAR1(H)
- S(l);::S(C)
- P(d);::S(C),XP(d)
- Refutation
- R(b);P_PINS(C)
- Try
- Actual
- P(D);
- Threat
- QAR1(H)
- Vars
- P(c);EP,P_PINS(C),S_CUTB(a),XP(D)::B(I)
- P(d);EP,S_CUTR(b),XP(D)::S(C)
- B(j);N_GUARD::R1(G),XQ(f)
- S(m);N_GUARD::R(J),XP(k)
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).