MESON Chess Problem Database
Problem Display
PID: 250559 (bb1rN1n1/2p1R2q/1p3pB1/2Nkp3/Q7/8/K1Rpr1n1/8 w - - 0 1)
Mazul, Waldemar
Schweizerische Schachzeitung, 1997
#2
7 + 13
SOLUTION
- SOUND
- Sets
- 1...Qh1
- 2.Bf7#
- 1...Qh2
- 2.Bf7#
- 1...Qh4
- 2.Bf7#
- 1...Qh6
- 2.Bf7#
- 1...Qf7
- 2.Bxf7#
- 1...Qh8
- 2.Bf7#
- 1...Rf2
- 2.Qe4#
- 1...Re4
- 2.Qxe4#
- 1...Rd7
- 2.Qxd7#
- 1...Rc8
- 2.Qd7#
- 1...Rxe8
- 2.Qd7#
- 1...Bc6
- 2.Qc4#
- 1...Se3
- 2.Qe4#
- 1...c6
- 2.Qc4#
- 1...Qh1
- Tries
- 1.Sd3?
- threat
- 2.Qc4#
- 1...Rxe8
- 2.Qd7#
- 1...Qh4
- 2.Bf7#
- 1...Re4
- 2.Qxe4#
- 1...Se3
- 2.Qe4#
- 1...b5
- 2.Rc5#
- 1...c5!
- threat
- 1.Se4?
- threat
- 2.Qc4#
- 1...Rxe4
- 2.Qxe4#
- 1...b5
- 2.Rc5#
- 1...c5
- 2.Sc3#
- 1...Se3!
- threat
- 1.Sa6?
- threat
- 2.Qc4#
- 1...Rxe8
- 2.Qd7#
- 1...Qh4
- 2.Bf7#
- 1...Re4
- 2.Qxe4#
- 1...Se3
- 2.Qe4#
- 1...b5
- 2.Rc5#
- 1...c5!
- threat
- 1.Se6?
- threat
- 2.Qb3#
- 2.Qc4#
- 1...Qxg6
- 2.Qc4#
- 1...Rxe8
- 2.Qd7#
- 1...e4
- 2.Qd4#
- 1...c5
- 2.Qxa8#
- 1...Qh3
- 2.Qc4#
- 1...Re3
- 2.Qc4#
- 1...Re4
- 2.Qxe4#
- 1...Se3
- 2.Qe4#
- 1...b5
- 2.Rc5#
- 2.Qb3#
- 1...f5
- 2.Qc4#
- 1...Qh4!
- threat
- 1.Sb7?
- threat
- 2.Qc4#
- 1...Qh4
- 2.Bf7#
- 1...Re4
- 2.Qxe4#
- 1...Se3
- 2.Qe4#
- 1...b5
- 2.Rc5#
- 1...c5!
- threat
- 1.Sd7?
- threat
- 2.Qc4#
- 1...c5
- 2.Sxb6#
- 1...Qh4
- 2.Bf7#
- 1...Re4
- 2.Qxe4#
- 1...Se3
- 2.Qe4#
- 1...b5
- 2.Rc5#
- 1...Rxe8!
- threat
- 1.Sxf6+?
- 1...Kd6
- 2.Re6#
- 1...Sxf6!
- 1...Kd6
- 1.Qb3+?
- 1...Kd4
- 2.Se6#
- 2.Qd3#
- 1...Kc6!
- 1...Kd4
- 1.Sd3?
- Keys
- 1.Sb3!
- threat
- 2.Qc4#
- 1...Rxe8
- 2.Qd7#
- 1...Qh4
- 2.Bf7#
- 1...Re4
- 2.Qxe4#
- 1...Se3
- 2.Qe4#
- 1...b5
- 2.Rc5#
- 1...c5
- 2.Qxa8#
- threat
- 1.Sb3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 10
- Sets
- Q(i);N_GUARD::B(E)
- Q(i);N_GUARD::B(E),XQ(i)
- R(b);N_GUARD::QAB1(C)
- R(b);N_GUARD::QAB1(C),XR(b)
- R(l);N_GUARD::QAR2(C),XR(l)
- R(l);N_GUARD::QAR2(C)
- R(l);N_GUARD,XS(G)::QAR2(C)
- B(j);SBLOCK::QAB1(C)
- S(c);S_CUTR(b)::QAB1(C)
- P(h);SBLOCK::QAB1(C)
- Tries
- Try
- S(D);
- Threat
- QAB1(C)
- Vars
- R(l);N_GUARD,XS(G)::QAR2(C)
- Q(i);N_GUARD::B(E)
- R(b);N_GUARD::QAB1(C),XR(b)
- S(c);S_CUTR(b)::QAB1(C)
- P(f);N_GUARD::R1(B)
- Refutation
- P(h);
- Try
- S(D);
- Threat
- QAB1(C)
- Vars
- R(b);OGATE,XS(D)::QAB1(C),XR(b)
- P(f);N_GUARD::R1(B)
- P(h);SBLOCK::S(D)
- Refutation
- S(c);
- Try
- S(D);
- Threat
- QAB1(C)
- Vars
- R(l);N_GUARD,XS(G)::QAR2(C)
- Q(i);N_GUARD::B(E)
- R(b);N_GUARD::QAB1(C),XR(b)
- S(c);S_CUTR(b)::QAB1(C)
- P(f);N_GUARD::R1(B)
- Refutation
- P(h);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(i);XB(E)::QAB1(C)
- R(l);N_GUARD,XS(G)::QAR2(C)
- P(e);N_GUARD::QAR1(C)
- P(h);N_GUARD::QAB(C),XB(j)
- Q(i);::QAB1(C)
- R(b);::QAB1(C)
- R(b);N_GUARD::QAB1(C),XR(b)
- S(c);S_CUTR(b)::QAB1(C)
- P(g);::QAB1(C)
- Refutation
- Q(i);
- Try
- S(D);
- Threat
- QAB1(C)
- Vars
- Q(i);N_GUARD::B(E)
- R(b);N_GUARD::QAB1(C),XR(b)
- S(c);S_CUTR(b)::QAB1(C)
- P(f);N_GUARD::R1(B)
- Refutation
- P(h);
- Try
- S(D);
- Threat
- QAB1(C)
- Vars
- P(h);N_GUARD::S(D),XP(f)
- Q(i);N_GUARD::B(E)
- R(b);N_GUARD::QAB1(C),XR(b)
- S(c);S_CUTR(b)::QAB1(C)
- P(f);N_GUARD::R1(B)
- Refutation
- R(l);XS(G)
- Try
- S(G);CHECK,XP(g)
- Vars
- K(d);P-FLIGHT,S_CUTS(m)::R1(F)
- Refutation
- S(m);XS(G)
- Try
- Q(C);CHECK
- Refutation
- K(d);S_FLIGHT
- Try
- Actual
- S(D);
- Threat
- QAB1(C)
- Vars
- R(l);N_GUARD,XS(G)::QAR2(C)
- Q(i);N_GUARD::B(E)
- R(b);N_GUARD::QAB1(C),XR(b)
- S(c);S_CUTR(b)::QAB1(C)
- P(f);N_GUARD::R1(B)
- P(h);N_GUARD::QAB(C),XB(j)
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).