MESON Chess Problem Database
Problem Display
PID: 178150 (1q1R2B1/8/b1R5/r2npQP1/3kn1NK/1P1pp3/5P2/2b1BN2 w - - 0 1)
von Alvensleben, Wichard Udo Reinhard
2nd HM., Schach-Echo, 1989
#2
11 + 10
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qa7
- 2.Qxe5#
- 1...Qxb3
- 2.Qxe5#
- 1...Qb4
- 2.Qxe5#
- 1...Qb5
- 2.Qxe5#
- 1...Qb6
- 2.Qxe5#
- 1...Qb7
- 2.Qxe5#
- 1...Qa8
- 2.Qxe5#
- 1...Qc8
- 2.Qxe5#
- 1...Qxd8
- 2.Qxe5#
- 1...Ra1
- 2.Rxd5#
- 1...Ra2
- 2.Rxd5#
- 1...Ra3
- 2.Rxd5#
- 1...Ra4
- 2.Rxd5#
- 1...Rb5
- 2.Rc4#
- 1...Bb2
- 2.fxe3#
- 1...Ba3
- 2.fxe3#
- 1...Bc4
- 2.Rxc4#
- 1...Bb5
- 2.Rxd5#
- 1...Bb7
- 2.Rc4#
- 1...Bc8
- 2.Rc4#
- 1...Sd2
- 2.fxe3#
- 1...Sxf2
- 2.Bc3#
- 1...Sc3
- 2.Bxc3#
- 1...Sg3
- 2.Bc3#
- 1...Sc5
- 2.Rxd5#
- 1...Sxg5
- 2.Bc3#
- 1...Sd6
- 2.Qxe5#
- 1...Sf6
- 2.Bc3#
- 1...Qa7
- Tries
- 1.Sfh2?
- threat
- 2.Sf3#
- 1...Sxg5
- 2.Bc3#
- 1...Sd2
- 2.fxe3#
- 1...d2!
- threat
- 1.Sgh2?
- threat
- 2.Sf3#
- 1...Sxg5
- 2.Bc3#
- 1...Sd2
- 2.fxe3#
- 1...d2!
- threat
- 1.Sxe5?
- threat
- 2.Sf3#
- 1...Sxg5
- 2.Bc3#
- 1...Sd2
- 2.fxe3#
- 1...d2
- 2.fxe3#
- 1...Qxe5!
- threat
- 1.Sf6?
- threat
- 2.Qxe4#
- 1...Sxf2
- 2.Bc3#
- 1...Sxg5
- 2.Bc3#
- 1...Sxf6
- 2.Bc3#
- 1...Sd2
- 2.fxe3#
- 1...Sc3
- 2.Bxc3#
- 1...Sg3
- 2.Bc3#
- 1...Sc5
- 2.Rxd5#
- 1...Sd6!
- threat
- 1.Bxa5?
- threat
- 2.Rxd5#
- 1...Qxb3
- 2.Qxe5#
- 1...Qxd8
- 2.Qxe5#
- 1...Qb5
- 2.Qxe5#
- 1...Bc4
- 2.Rxc4#
- 1...Sc3
- 2.Bxc3#
- 1...Sd6
- 2.Qxe5#
- 1...Sf6
- 2.Bc3#
- 1...Qd6!
- threat
- 1.Bh7?
- threat
- 2.Qxe4#
- 1...Sxf2
- 2.Bc3#
- 1...Sxg5
- 2.Bc3#
- 1...Sd2
- 2.fxe3#
- 1...Sc3
- 2.Bxc3#
- 1...Sg3
- 2.Bc3#
- 1...Sd6
- 2.Qxe5#
- 1...Sf6
- 2.Bc3#
- 1...Sc5!
- threat
- 1.f3?
- threat
- 2.Qxe4#
- 1...Sxg5
- 2.Bc3#
- 1...Sf2
- 2.Bc3#
- 1...Sc3
- 2.Bxc3#
- 1...Sg3
- 2.Bc3#
- 1...Sc5
- 2.Rxd5#
- 1...Sd6
- 2.Qxe5#
- 1...Sf6
- 2.Bc3#
- 1...Sd2!
- threat
- 1.Sfh2?
- Keys
- 1.Sg3!
- threat
- 2.Qxe4#
- 1...Sxf2
- 2.Bc3#
- 1...Sxg3
- 2.Bc3#
- 1...Sxg5
- 2.Bc3#
- 1...Sd2
- 2.fxe3#
- 1...Sc3
- 2.Bxc3#
- 1...Sc5
- 2.Rxd5#
- 1...Sd6
- 2.Qxe5#
- 1...Sf6
- 2.Bc3#
- threat
- 1.Sg3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 20
- Sets
- Q(j);N_GUARD::QAB1(G),XP(h)
- Q(j);N_GUARD,XP(D)::QAB1(G),XP(h)
- Q(j);N_GUARD,N_SPINS(g),P_PINP(H),XR(J)::QAB1(G),XP(h)
- R(f);N_GUARD::R1(J),XS(g)
- R(f);S_CUTB(i)::R1(I)
- B(a);N_GUARD::P(C),XP(c)
- B(i);N_GUARD::R1(I),XB(i)
- B(i);S_CUTR(f)::R1(J),XS(g)
- B(i);N_GUARD::R1(I)
- S(e);S_CUTB(a)::P(C),XP(c)
- S(e);N_GUARD,XP(C)::B(A)
- S(e);N_GUARD::B(A),XS(e)
- S(e);N_GUARD::B(A)
- S(e);S_CUTR(f)::R1(J),XS(g)
- S(e);N_GUARD,XP(H)::B(A)
- S(e);N_SPINS(g),S_CUTQ(j)::QAB1(G),XP(h)
- Tries
- Try
- S(B);
- Threat
- S(B)
- Vars
- S(e);N_GUARD,XP(H)::B(A)
- S(e);S_CUTB(a)::P(C),XP(c)
- Refutation
- P(b);
- Try
- S(E);
- Threat
- S(E)
- Vars
- S(e);N_GUARD,XP(H)::B(A)
- S(e);S_CUTB(a)::P(C),XP(c)
- Refutation
- P(b);
- Try
- S(E);XP(h)
- Threat
- S(E)
- Vars
- S(e);N_GUARD,XP(H)::B(A)
- S(e);S_CUTB(a)::P(C),XP(c)
- P(b);S_CUTB(a)::P(C),XP(c)
- Refutation
- Q(j);XS(E)
- Try
- S(E);
- Threat
- QAR1(G),XS(e)
- Vars
- S(e);N_GUARD,XP(C)::B(A)
- S(e);N_GUARD,XP(H)::B(A)
- S(e);N_GUARD,XS(E)::B(A)
- S(e);S_CUTB(a)::P(C),XP(c)
- S(e);N_GUARD::B(A),XS(e)
- S(e);N_GUARD::B(A)
- S(e);S_CUTR(f)::R1(J),XS(g)
- Refutation
- S(e);N_SPINS(g)
- Try
- B(A);XR(f)
- Threat
- R1(J),XS(g)
- Vars
- Q(j);N_GUARD,XP(D)::QAB1(G),XP(h)
- Q(j);N_GUARD,N_SPINS(g),P_PINP(H),XR(J)::QAB1(G),XP(h)
- Q(j);N_GUARD::QAB1(G),XP(h)
- B(i);N_GUARD::R1(I),XB(i)
- S(e);N_GUARD::B(A),XS(e)
- S(e);N_SPINS(g),S_CUTQ(j)::QAB1(G),XP(h)
- S(e);N_GUARD::B(A)
- Refutation
- Q(j);N_SPINS(g)
- Try
- B(K);
- Threat
- QAR1(G),XS(e)
- Vars
- S(e);N_GUARD,XP(C)::B(A)
- S(e);N_GUARD,XP(H)::B(A)
- S(e);S_CUTB(a)::P(C),XP(c)
- S(e);N_GUARD::B(A),XS(e)
- S(e);N_GUARD::B(A)
- S(e);N_SPINS(g),S_CUTQ(j)::QAB1(G),XP(h)
- Refutation
- S(e);
- Try
- P(C);
- Threat
- QAR1(G),XS(e)
- Vars
- S(e);N_GUARD,XP(H)::B(A)
- S(e);N_GUARD::B(A)
- S(e);N_GUARD::B(A),XS(e)
- S(e);S_CUTR(f)::R1(J),XS(g)
- S(e);N_SPINS(g),S_CUTQ(j)::QAB1(G),XP(h)
- Refutation
- S(e);
- Try
- Actual
- S(B);
- Threat
- QAR1(G),XS(e)
- Vars
- S(e);N_GUARD,XP(C)::B(A)
- S(e);N_GUARD,XS(B)::B(A)
- S(e);N_GUARD,XP(H)::B(A)
- S(e);S_CUTB(a)::P(C),XP(c)
- S(e);N_GUARD::B(A),XS(e)
- S(e);S_CUTR(f)::R1(J),XS(g)
- S(e);N_SPINS(g),S_CUTQ(j)::QAB1(G),XP(h)
- S(e);N_GUARD::B(A)
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).