MESON Chess Problem Database
Problem Display
PID: 170170 (3Q4/bR1Pp3/p1p1B3/2kpP3/1R1NP1nq/1pK1P3/1rbP4/r3N3 w - - 0 1)
Machler, Emil
Tages-Anzeiger, 1985
#2
12 + 12
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qxe1
- 2.Qxe7#
- 1...Qf2
- 2.Qxe7#
- 1...Qg3
- 2.Qxe7#
- 1...Qh1
- 2.Qxe7#
- 1...Qh2
- 2.Qxe7#
- 1...Qh3
- 2.Qxe7#
- 1...Qh5
- 2.Qxe7#
- 1...Qh6
- 2.Qxe7#
- 1...Qh8
- 2.Qxe7#
- 1...Rab1
- 2.Qa5#
- 1...Rc1
- 2.Qa5#
- 1...Rd1
- 2.Qa5#
- 1...Rxe1
- 2.Qa5#
- 1...Ra5
- 2.Qxa5#
- 1...Bd1
- 2.Sd3#
- 1...Bd3
- 2.Sxd3#
- 1...Bb6
- 2.Qxb6#
- 1...Bb8
- 2.Qb6#
- 1...Sf6
- 2.Qxe7#
- 1...dxe4
- 2.Rc4#
- 1...Qxe1
- Tries
- 1.Se2?
- threat
- 2.d4#
- 1...d4+
- 2.exd4#
- 1...Qxe1
- 2.Qxe7#
- 1...dxe4
- 2.Rc4#
- 1...Rd1
- 2.Qa5#
- 1...Bd3
- 2.Sxd3#
- 1...Sxe5!
- threat
- 1.Sxb3+?
- 1...Bxb3
- 2.Sd3#
- 2.d4#
- 1...Rxb3+!
- 1...Bxb3
- 1.Sdf3?
- threat
- 2.d4#
- 1...d4+
- 2.exd4#
- 1...Qxe1
- 2.Qxe7#
- 1...dxe4
- 2.Rc4#
- 1...Rd1
- 2.Qa5#
- 1...Bd3
- 2.Sxd3#
- 1...Sxe5!
- threat
- 1.Sb5?
- threat
- 2.d4#
- 1...d4+
- 2.exd4#
- 1...Qxe1
- 2.Qxe7#
- 1...dxe4
- 2.Rc4#
- 1...cxb5
- 2.Qc7#
- 2.Qc8#
- 1...Bd3
- 2.Sxd3#
- 1...Rd1!
- threat
- 1.R4b5+?
- 1...cxb5
- 2.Qc7#
- 2.Qc8#
- 1...axb5!
- 1...cxb5
- 1.R4b6?
- threat
- 2.Rxc6#
- 1...Bxb6
- 2.Qxb6#
- 1...Sxe5!
- threat
- 1.R7b5+?
- 1...cxb5
- 2.Qc7#
- 1...axb5!
- 1...cxb5
- 1.R7b6?
- threat
- 2.Rxc6#
- 1...Bxb6
- 2.Qxb6#
- 1...Sxe5!
- threat
- 1.Se2?
- Keys
- 1.Sf5!
- threat
- 2.d4#
- 1...d4+
- 2.exd4#
- 1...Qxe1
- 2.Qxe7#
- 1...dxe4
- 2.Rc4#
- 1...Rd1
- 2.Qa5#
- 1...Bd3
- 2.Sxd3#
- threat
- 1.Sf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 16
- Sets
- Q(f);N_GUARD,P_PINP(B),XS(A)::QAB(L),XP(l)
- Q(f);N_GUARD::QAB(L),XP(l)
- Q(f);N_GUARD,P_PINP(D)::QAB(L),XP(l)
- R(a);N_GUARD::QAR2(L)
- R(a);N_GUARD,XS(A)::QAR2(L)
- R(a);N_GUARD::QAR2(L),XR(a)
- B(c);N_GUARD::S(A)
- B(c);N_GUARD::S(A),XB(c)
- B(k);N_GUARD::QAB1(L),XB(k)
- B(k);N_GUARD::QAB1(L)
- S(e);S_CUTQ(f)::QAB(L),XP(l)
- P(h);N_GUARD,XP(G)::R1(E)
- Tries
- Try
- S(F);
- Threat
- P(B)
- Vars
- P(h);CHECK,OGATE::P(D),XP(h)
- Q(f);N_GUARD,P_PINP(B),XS(A)::QAB(L),XP(l)
- P(h);N_GUARD,XP(G)::R1(E)
- R(a);N_GUARD::QAR2(L)
- B(c);N_GUARD::S(A),XB(c)
- Refutation
- S(e);XP(H)
- Try
- S(F);CHECK,XP(d)
- Refutation
- R(b);CHECK,XS(F)
- Try
- S(F);
- Threat
- P(B)
- Vars
- P(h);CHECK,OGATE::P(D),XP(h)
- Q(f);N_GUARD,P_PINP(B),XS(A)::QAB(L),XP(l)
- P(h);N_GUARD,XP(G)::R1(E)
- R(a);N_GUARD::QAR2(L)
- B(c);N_GUARD::S(A),XB(c)
- Refutation
- S(e);XP(H)
- Try
- S(F);
- Threat
- P(B)
- Vars
- P(h);CHECK,OGATE::P(D),XP(h)
- Q(f);N_GUARD,P_PINP(B),XS(A)::QAB(L),XP(l)
- P(h);N_GUARD,XP(G)::R1(E)
- B(c);N_GUARD::S(A),XB(c)
- Refutation
- R(a);
- Try
- R(E);CHECK
- Refutation
- P(i);XR(E)
- Try
- R(E);
- Threat
- R1(E),XP(j)
- Vars
- B(k);OGATE,XR(E)::QAB1(L),XB(k)
- Refutation
- S(e);XP(H)
- Try
- R(J);CHECK
- Vars
- P(j);S_CUTP(i),XR(J)::QAR2(L)
- Refutation
- P(i);XR(J)
- Try
- R(J);
- Threat
- R1(J),XP(j)
- Vars
- B(k);OGATE,XR(J)::QAB1(L),XB(k)
- Refutation
- S(e);XP(H)
- Try
- Actual
- S(F);
- Threat
- P(B)
- Vars
- P(h);CHECK,OGATE::P(D),XP(h)
- Q(f);N_GUARD,P_PINP(B),XS(A)::QAB(L),XP(l)
- P(h);N_GUARD,XP(G)::R1(E)
- R(a);N_GUARD::QAR2(L)
- B(c);N_GUARD::S(A),XB(c)
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).