MESON Chess Problem Database
Problem Display
PID: 46313 (N2n2bb/2R1p1Bn/qp1k1r1R/rp1N1B2/p3Qp2/8/8/4K3 w - - 0 1)
Witt, Andreas
Die Schwalbe, 2002
#2
8 + 13
SOLUTION
- SOUND
- Sets
- 1...Re6
- 2.Qe5#
- 1...Rg6
- 2.Qe5#
- 1...Rxh6
- 2.Qe5#
- 1...Bxd5
- 2.Qxe7#
- 1...Re6
- Tries
- 1.Se3?
- threat
- 2.Qxe7#
- 1...Sc6
- 2.Rxc6#
- 1...Re6
- 2.Qd3#
- 2.Qd5#
- 2.Qb4#
- 2.Qd4#
- 2.Qxf4#
- 2.Qe5#
- 1...Be6
- 2.Qxf4#
- 1...Se6
- 2.Qd5#
- 1...e5
- 2.Qb4#
- 1...e6
- 2.Qd4#
- 1...fxe3!
- threat
- 1.Sb4?
- threat
- 2.Qxe7#
- 1...Sc6
- 2.Rxc6#
- 1...Re6
- 2.Qe5#
- 1...Be6
- 2.Qxf4#
- 1...Se6
- 2.Qd5#
- 1...e6
- 2.Qd4#
- 1...e5!
- threat
- 1.Sxf4?
- threat
- 2.Qxe7#
- 1...Sc6
- 2.Rxc6#
- 1...Re6
- 2.Qe5#
- 1...Se6
- 2.Qd5#
- 1...e5
- 2.Qb4#
- 1...e6
- 2.Qd4#
- 1...Be6!
- threat
- 1.Sdxb6?
- threat
- 2.Qxe7#
- 1...Sc6
- 2.Rxc6#
- 1...Re6
- 2.Qe5#
- 1...Be6
- 2.Qxf4#
- 1...Se6
- 2.Rc6#
- 2.Qd5#
- 1...e5
- 2.Qb4#
- 1...e6
- 2.Qd4#
- 1...Qxb6!
- threat
- 1.Sxe7?
- threat
- 2.Qxf4#
- 1...Sc6
- 2.Rxc6#
- 1...Re6
- 2.Qe5#
- 1...Se6
- 2.Qd5#
- 1...Sf7
- 2.Rc6#
- 2.Qd5#
- 2.Qd4#
- 1...f3
- 2.Qf4#
- 1...b4!
- threat
- 1.Rd7+?
- 1...Kc6
- 2.Qc2#
- 1...Kc5!
- 1...Kc6
- 1.Se3?
- Keys
- 1.Sc3!
- threat
- 2.Qxe7#
- 1...Sc6
- 2.Rxc6#
- 1...Re6
- 2.Qe5#
- 1...Be6
- 2.Qxf4#
- 1...Se6
- 2.Qd5#
- 1...e5
- 2.Qb4#
- 1...e6
- 2.Qd4#
- threat
- 1.Sc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 3
- Sets
- R(h);P_PINQ(B)::QAB1(B)
- R(h);::QAB1(B)
- R(h);N_SPINR(h),XR(E)::QAB1(B)
- B(l);SBLOCK,XS(C)::QAB1(B),XP(i)
- Tries
- Try
- S(C);
- Threat
- QAB1(B),XP(i)
- Vars
- S(k);N_GUARD::R1(F),XS(k)
- B(l);N_SPINR(h),S_CUTP(i)::QAB(B),XP(b)
- S(k);N_SPINR(h),S_CUTB(l)::QAR1(B)
- P(i);SBLOCK::QAB(B)
- P(i);N_SPINR(h),S_CUTB(l)::QAR2(B)
- Refutation
- P(b);XS(C)
- Try
- S(C);
- Threat
- QAB1(B),XP(i)
- Vars
- S(k);N_GUARD::R1(F),XS(k)
- R(h);P_PINQ(B)::QAB1(B)
- B(l);N_SPINR(h),S_CUTP(i)::QAB(B),XP(b)
- S(k);N_SPINR(h),S_CUTB(l)::QAR1(B)
- P(i);N_SPINR(h),S_CUTB(l)::QAR2(B)
- Refutation
- P(i);
- Try
- S(C);XP(b)
- Threat
- QAB1(B),XP(i)
- Vars
- S(k);N_GUARD::R1(F),XS(k)
- R(h);P_PINQ(B)::QAB1(B)
- S(k);N_SPINR(h),S_CUTB(l)::QAR1(B)
- P(i);SBLOCK::QAB(B)
- P(i);N_SPINR(h),S_CUTB(l)::QAR2(B)
- Refutation
- B(l);N_SPINR(h)
- Try
- S(C);XP(f)
- Threat
- QAB1(B),XP(i)
- Vars
- S(k);N_GUARD::R1(F),XS(k)
- R(h);P_PINQ(B)::QAB1(B)
- B(l);N_SPINR(h),S_CUTP(i)::QAB(B),XP(b)
- P(i);SBLOCK::QAB(B)
- P(i);N_SPINR(h),S_CUTB(l)::QAR2(B)
- Refutation
- Q(e);XS(C)
- Try
- S(C);XP(i)
- Threat
- QAB(B),XP(b)
- Vars
- S(k);N_GUARD::R1(F),XS(k)
- R(h);P_PINQ(B)::QAB1(B)
- S(k);N_SPINR(h),S_CUTB(l)::QAR1(B)
- P(b);::QAB(B)
- Refutation
- P(d);
- Try
- R(F);CHECK
- Vars
- K(g);P-FLIGHT::QAR(B)
- Refutation
- K(g);N_SPINR(h),S_FLIGHT
- Try
- Actual
- S(C);
- Threat
- QAB1(B),XP(i)
- Vars
- S(k);N_GUARD::R1(F),XS(k)
- R(h);P_PINQ(B)::QAB1(B)
- B(l);N_SPINR(h),S_CUTP(i)::QAB(B),XP(b)
- S(k);N_SPINR(h),S_CUTB(l)::QAR1(B)
- P(i);SBLOCK::QAB(B)
- P(i);N_SPINR(h),S_CUTB(l)::QAR2(B)
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).