MESON Chess Problem Database
Problem Display
PID: 64660 (7r/B1NpR3/3p2Bp/7K/nb2pk2/r3p2R/q6n/1b1Q2N1 w - - 0 1)
Mees, Wouter Jacob Gregorius
Probleemblad, 1982
#2
8 + 13
| 3752 | FIDE Album (1980-1982) | 1988 |
SOLUTION
- SOUND
- Sets
- 1...Qb3
- 2.Se2#
- 1...Qd5+
- 2.Sxd5#
- 1...Qf7
- 2.Se2#
- 1...Qg8
- 2.Se2#
- 1...Qa1
- 2.Se2#
- 2.Sd5#
- 1...Qb2
- 2.Sd5#
- 1...Qc2
- 2.Sd5#
- 1...Qe2+
- 2.Sxe2#
- 1...Qf2
- 2.Sd5#
- 1...Qg2
- 2.Sd5#
- 1...Rb3
- 2.Sd5#
- 1...Rd3
- 2.Rxe4#
- 1...Bc2
- 2.Se2#
- 1...Bd3
- 2.Bxe3#
- 1...Be1
- 2.Qxd6#
- 1...Bd2
- 2.Se2#
- 1...Bc3
- 2.Bxe3#
- 1...Ba5
- 2.Qxd6#
- 1...Sf1
- 2.Qg4#
- 1...Sg4
- 2.Qxg4#
- 1...Sb2
- 2.Se2#
- 1...Sc3
- 2.Bxe3#
- 1...Sc5
- 2.Qxd6#
- 1...Qb3
- Tries
- 1.Rh4+?
- 1...Sg4
- 2.Rxg4#
- 2.Qxg4#
- 1...Kg3!
- 1...Sg4
- 1.Rf7+?
- 1...Ke5
- 2.Bd4#
- 2.Rf5#
- 2.Qd4#
- 1...Qxf7!
- 1...Ke5
- 1.Qb3?
- threat
- 2.Sd5#
- 2.Bxe3#
- 1...Qe2+
- 2.Sxe2#
- 1...Qxb3
- 2.Se2#
- 1...Rxb3
- 2.Sd5#
- 1...Qd2
- 2.Qf7#
- 1...Qf2
- 2.Sd5#
- 2.Qf7#
- 1...Bd2
- 2.Se2#
- 2.Sd5#
- 1...Bc5
- 2.Sd5#
- 1...Sf1
- 2.Sd5#
- 1...Sg4
- 2.Sd5#
- 1...Sc3
- 2.Bxe3#
- 1...Sc5
- 2.Sd5#
- 1...e2
- 2.Sd5#
- 2.Be3#
- 1...d5
- 2.Sxd5#
- 2.Bxe3#
- 1...Sb6!
- threat
- 1.Qd2?
- threat
- 2.Se2#
- 1...Qd5+
- 2.Sxd5#
- 1...Qe6
- 2.Qxh2#
- 1...Qc4
- 2.Qxh2#
- 1...Bd3
- 2.Bxe3#
- 2.Qxe3#
- 1...Sc3
- 2.Bxe3#
- 2.Qxe3#
- 1...Qxd2!
- threat
- 1.Qd3?
- threat
- 2.Bxe3#
- 2.Rxe4#
- 1...Qd5+
- 2.Sxd5#
- 1...Qe2+
- 2.Sxe2#
- 1...Rxd3
- 2.Rxe4#
- 1...Bxd3
- 2.Bxe3#
- 1...exd3
- 2.Bxe3#
- 2.Re4#
- 1...Qc4
- 2.Se2#
- 2.Bxe3#
- 1...Qd2
- 2.Sd5#
- 2.Rxe4#
- 1...Qf2
- 2.Sd5#
- 2.Rxe4#
- 1...Qg2
- 2.Sd5#
- 2.Bxe3#
- 1...Re8
- 2.Bxe3#
- 1...Bd2
- 2.Se2#
- 2.Rxe4#
- 2.Qxd6#
- 1...Bc5
- 2.Rxe4#
- 1...Sf1
- 2.Rxe4#
- 1...Sg4
- 2.Rxe4#
- 1...Sc3
- 2.Bxe3#
- 2.Qxe3#
- 1...Sc5
- 2.Qxd6#
- 1...Sb6
- 2.Rxe4#
- 1...e2
- 2.Be3#
- 2.Rxe4#
- 1...d5
- 2.Bxe3#
- 1...Qe6!
- threat
- 1.Qd4?
- threat
- 2.Qf6#
- 1...Qd5+
- 2.Sxd5#
- 1...Qe2+
- 2.Sxe2#
- 1...Qe6
- 2.Se2#
- 1...Qf7
- 2.Se2#
- 2.Rxf7#
- 1...Qa1
- 2.Se2#
- 2.Sd5#
- 2.Rf7#
- 1...Qb2
- 2.Sd5#
- 2.Rf7#
- 1...Bc3
- 2.Qxe3#
- 1...Sg4
- 2.Rf3#
- 1...Rf8!
- threat
- 1.Qd5?
- threat
- 2.Rf7#
- 2.Qf5#
- 1...Qxd5+
- 2.Sxd5#
- 1...Qe2+
- 2.Sxe2#
- 1...Qa1
- 2.Se2#
- 2.Qf5#
- 1...Qb2
- 2.Qf5#
- 1...Rh7
- 2.Qf5#
- 1...Bc3
- 2.Bxe3#
- 2.Qf5#
- 1...Sg4
- 2.Qf5#
- 1...Rf8!
- threat
- 1.Rh4+?
- Keys
- 1.Qc2!
- threat
- 2.Se2#
- 2.Rxe4#
- 1...Qd5+
- 2.Sxd5#
- 1...Qxc2
- 2.Sd5#
- 1...Bxc2
- 2.Se2#
- 1...Qe6
- 2.Qxh2#
- 1...Qc4
- 2.Qxh2#
- 1...Re8
- 2.Se2#
- 1...Sc3
- 2.Bxe3#
- 1...Sc5
- 2.Se2#
- 1...e2
- 2.Sxe2#
- 2.Rxe4#
- 1...d5
- 2.Se2#
- threat
- 1.Qc2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 17
- Sets
- Q(b);N_GUARD::S(B)
- Q(b);CHECK,N_GUARD::S(G),XQ(b)
- Q(b);N_GUARD,P_PINB(E)::S(B)
- Q(b);N_GUARD::S(G)
- Q(b);CHECK,N_GUARD::S(B),XQ(b)
- R(d);S_CUTQ(b)::S(G)
- R(d);S_CUTB(a)::R1(H),XP(h)
- B(a);S_CUTQ(b)::S(B)
- B(a);S_CUTR(d)::B(F),XP(e)
- B(g);N_GUARD::QAB(A),XP(j)
- B(g);S_CUTQ(b)::S(B)
- B(g);S_CUTR(d)::B(F),XP(e)
- S(c);N_GUARD::QAR1(A)
- S(c);N_GUARD::QAR1(A),XS(c)
- S(f);S_CUTQ(b)::S(B)
- S(f);S_CUTR(d)::B(F),XP(e)
- S(f);S_CUTB(g)::QAB(A),XP(j)
- Tries
- Try
- R(C);CHECK
- Refutation
- K(i);S_FLIGHT
- Try
- R(H);CHECK
- Refutation
- Q(b);P_PINB(E),XR(H)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(b);CHECK,N_GUARD::S(B),XQ(b)
- Q(b);N_GUARD,XQ(A)::S(B)
- R(d);XQ(A)::S(G)
- Q(b);N_GUARD::QAR(A)
- B(g);::S(G)
- S(c);::S(G)
- S(f);::B(F),XP(e)
- S(f);::S(G)
- Refutation
- S(f);
- Try
- Q(A);P_PINP(e)
- Threat
- S(B)
- Vars
- Q(b);CHECK,N_GUARD::S(G),XQ(b)
- Q(b);N_GUARD::QAB(A),XS(c)
- Refutation
- Q(b);N_SPINP(e),XQ(A)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(b);CHECK,N_GUARD::S(G),XQ(b)
- Q(b);CHECK,N_GUARD::S(B),XQ(b)
- R(d);XQ(A)::R1(H),XP(h)
- B(a);XQ(A)::B(F),XP(e)
- R(m);::B(F),XP(e)
- B(g);::R1(H),XP(h)
- S(c);::R1(H),XP(h)
- S(f);S_CUTB(g)::QAB(A),XP(j)
- S(f);::R1(H),XP(h)
- P(j);::B(F),XP(e)
- Refutation
- Q(b);
- Try
- Q(A);P_PINP(h)
- Threat
- QAR2(A)
- Vars
- Q(b);CHECK,N_GUARD::S(G),XQ(b)
- Q(b);CHECK,N_GUARD::S(B),XQ(b)
- Q(b);N_GUARD::S(B)
- B(g);S_CUTR(d)::QAB1(A),XP(e)
- S(c);N_GUARD::R1(C)
- Refutation
- R(m);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(b);CHECK,XQ(A)::S(G),XQ(b)
- Q(b);CHECK,N_GUARD::S(B),XQ(b)
- Q(b);::QAR1(A)
- R(m);::QAR1(A)
- S(c);::QAR1(A)
- Refutation
- R(m);
- Try
- Actual
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(b);CHECK,N_GUARD::S(G),XQ(b)
- Q(b);N_GUARD,XQ(A)::S(G)
- B(a);XQ(A)::S(B)
- Q(b);N_GUARD::QAB(A),XS(c)
- R(m);::S(B)
- S(f);S_CUTR(d)::B(F),XP(e)
- S(f);::S(B)
- P(j);::S(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).