MESON Chess Problem Database
Problem Display
PID: 118370 (1B5n/3b4/1K3p2/N2B3R/3k3n/2p5/1pqpQ2N/1r4b1 w - - 0 1)
Rietveld, Johannes Jacob
Gross MT, 1950
#2
7 + 11
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qd1
- 2.Qe4#
- 1...Qb3+
- 2.Sxb3#
- 1...Qd3
- 2.Sb3#
- 1...Qa4
- 2.Qe4#
- 1...Qe4
- 2.Sb3#
- 2.Qxe4#
- 1...Qg6
- 2.Sb3#
- 1...Qh7
- 2.Sb3#
- 1...Qc1
- 2.Sb3#
- 2.Qe4#
- 1...Be3
- 2.Qc4#
- 1...Bh3
- 2.Sc6#
- 1...Bg4
- 2.Sc6#
- 1...Bc6
- 2.Sxc6#
- 1...Be6
- 2.Sc6#
- 1...Bc8
- 2.Sc6#
- 1...Sg2
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...S4g6
- 2.Sf3#
- 1...Qd1
- Tries
- 1.Sg4?
- threat
- 2.Qc4#
- 1...Qb3+
- 2.Sxb3#
- 1...Bxg4
- 2.Sc6#
- 1...Qd3
- 2.Sb3#
- 1...Qa4
- 2.Qe4#
- 1...Bb5!
- threat
- 1.Bh1?
- threat
- 2.Rd5#
- 1...Qb3+
- 2.Sxb3#
- 1...Qe4
- 2.Sb3#
- 2.Qxe4#
- 1...Qf5
- 2.Sb3#
- 1...Bf5
- 2.Sc6#
- 1...Bc6
- 2.Sxc6#
- 1...Be6
- 2.Sc6#
- 1...Sg2
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...f5
- 2.Be5#
- 1...Sf5!
- threat
- 1.Ba2?
- threat
- 2.Rd5#
- 1...Qb3+
- 2.Sxb3#
- 1...Be3
- 2.Qc4#
- 1...Qe4
- 2.Sb3#
- 1...Bf5
- 2.Sc6#
- 1...Bc6
- 2.Sxc6#
- 1...Be6
- 2.Sc6#
- 1...Sf5
- 2.Sf3#
- 1...f5
- 2.Be5#
- 1...Qf5!
- threat
- 1.Bg2?
- threat
- 2.Rd5#
- 1...Qb3+
- 2.Sxb3#
- 1...Sxg2
- 2.Sf3#
- 1...Qe4
- 2.Sb3#
- 2.Qxe4#
- 1...Qf5
- 2.Sb3#
- 1...Bf5
- 2.Sc6#
- 1...Bc6
- 2.Sxc6#
- 1...Be6
- 2.Sc6#
- 1...Sf3
- 2.Sxf3#
- 1...f5
- 2.Be5#
- 1...Sf5!
- threat
- 1.Bf3?
- threat
- 2.Rd5#
- 1...Qb3+
- 2.Sxb3#
- 1...Sxf3
- 2.Sxf3#
- 1...Qe4
- 2.Sb3#
- 2.Qxe4#
- 1...Qf5
- 2.Sb3#
- 1...Bf5
- 2.Sc6#
- 1...Bc6
- 2.Sxc6#
- 1...Be6
- 2.Sc6#
- 1...f5
- 2.Be5#
- 1...Sf5!
- threat
- 1.Bc4?
- threat
- 2.Rd5#
- 1...Qb3+
- 2.Sxb3#
- 1...Sf5
- 2.Sf3#
- 1...Qe4
- 2.Sb3#
- 1...Qf5
- 2.Sb3#
- 1...Bf5
- 2.Sc6#
- 1...Bc6
- 2.Sxc6#
- 1...Be6
- 2.Sc6#
- 1...f5
- 2.Be5#
- 2.Qe5#
- 1...Be3!
- threat
- 1.Be4?
- threat
- 2.Rd5#
- 1...Qb3+
- 2.Sxb3#
- 1...Qxe4
- 2.Sb3#
- 1...Be3
- 2.Qc4#
- 1...Sf5
- 2.Sf3#
- 1...Bf5
- 2.Sc6#
- 1...Bc6
- 2.Sxc6#
- 1...Be6
- 2.Sc6#
- 1...f5!
- threat
- 1.Bb7?
- threat
- 2.Rd5#
- 1...Qb3+
- 2.Sxb3#
- 1...Sf5
- 2.Sf3#
- 1...Qe4
- 2.Sb3#
- 2.Qxe4#
- 1...Qf5
- 2.Sb3#
- 1...Be3
- 2.Qc4#
- 1...Bc6
- 2.Sxc6#
- 1...Be6
- 2.Sc6#
- 1...f5
- 2.Be5#
- 1...Bf5!
- threat
- 1.Bf7?
- threat
- 2.Rd5#
- 1...Qb3+
- 2.Sxb3#
- 1...Be3
- 2.Qc4#
- 1...Sf5
- 2.Sf3#
- 1...Qe4
- 2.Sb3#
- 1...Qf5
- 2.Sb3#
- 1...Bf5
- 2.Sc6#
- 1...Bc6
- 2.Sxc6#
- 1...Be6
- 2.Sc6#
- 1...f5
- 2.Be5#
- 1...Sxf7!
- threat
- 1.Ba8?
- threat
- 2.Rd5#
- 1...Qb3+
- 2.Sxb3#
- 1...Sf5
- 2.Sf3#
- 1...Qe4
- 2.Sb3#
- 2.Qxe4#
- 1...Qf5
- 2.Sb3#
- 1...Be3
- 2.Qc4#
- 1...Bc6
- 2.Sxc6#
- 1...Be6
- 2.Sc6#
- 1...f5
- 2.Be5#
- 1...Bf5!
- threat
- 1.Bg8?
- threat
- 2.Rd5#
- 1...Qb3+
- 2.Sxb3#
- 1...Be3
- 2.Qc4#
- 1...Sf5
- 2.Sf3#
- 1...Qe4
- 2.Sb3#
- 1...Qf5
- 2.Sb3#
- 1...Bf5
- 2.Sc6#
- 1...Bc6
- 2.Sxc6#
- 1...Be6
- 2.Sc6#
- 1...f5
- 2.Be5#
- 1...Sf7!
- threat
- 1.Bf4?
- threat
- 2.Qc4#
- 1...Qb3+
- 2.Sxb3#
- 1...Qd3
- 2.Sb3#
- 1...Qa4
- 2.Qe4#
- 1...Bb5!
- threat
- 1.Sg4?
- Keys
- 1.Be6!
- threat
- 2.Rd5#
- 1...Qb3+
- 2.Sxb3#
- 1...Bxe6
- 2.Sc6#
- 1...Be3
- 2.Qc4#
- 1...Sf5
- 2.Sf3#
- 1...Qe4
- 2.Sb3#
- 1...Qf5
- 2.Sb3#
- 1...Bc6
- 2.Sxc6#
- 1...f5
- 2.Be5#
- threat
- 1.Be6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 11
- Sets
- Q(d);N_GUARD::QAR1(A)
- Q(d);CHECK,N_GUARD::S(C),XQ(d)
- Q(d);N_GUARD::S(C)
- B(b);SBLOCK::QAR1(A)
- B(j);N_GUARD::S(C)
- B(j);N_GUARD::S(C),XB(j)
- S(h);N_GUARD::S(B)
- S(h);N_GUARD::S(B),XS(h)
- Tries
- Try
- S(B);
- Threat
- QAR1(A)
- Vars
- Q(d);CHECK,N_GUARD::S(C),XQ(d)
- B(j);N_GUARD,XS(B)::S(C)
- Q(d);N_GUARD::S(C)
- Q(d);N_GUARD::QAR1(A)
- Refutation
- B(j);
- Try
- B(D);
- Threat
- R1(E)
- Vars
- Q(d);CHECK,N_GUARD::S(C),XQ(d)
- Q(d);N_GUARD::S(C)
- B(j);N_GUARD::S(C)
- B(j);N_GUARD::S(C),XB(j)
- S(h);N_GUARD::S(B)
- S(h);N_GUARD::S(B),XS(h)
- P(i);N_GUARD::B(G)
- Refutation
- S(h);
- Try
- B(D);
- Threat
- R1(E)
- Vars
- Q(d);CHECK,N_GUARD::S(C),XQ(d)
- B(b);SBLOCK::QAR1(A)
- Q(d);N_GUARD::S(C)
- B(j);N_GUARD::S(C)
- B(j);N_GUARD::S(C),XB(j)
- S(h);N_GUARD::S(B)
- P(i);N_GUARD::B(G)
- Refutation
- Q(d);
- Try
- B(D);
- Threat
- R1(E)
- Vars
- Q(d);CHECK,N_GUARD::S(C),XQ(d)
- S(h);N_GUARD,XB(D)::S(B)
- Q(d);N_GUARD::S(C)
- B(j);N_GUARD::S(C)
- B(j);N_GUARD::S(C),XB(j)
- S(h);N_GUARD::S(B),XS(h)
- P(i);N_GUARD::B(G)
- Refutation
- S(h);
- Try
- B(D);
- Threat
- R1(E)
- Vars
- Q(d);CHECK,N_GUARD::S(C),XQ(d)
- S(h);XB(D)::S(B),XS(h)
- Q(d);N_GUARD::S(C)
- B(j);N_GUARD::S(C)
- B(j);N_GUARD::S(C),XB(j)
- P(i);N_GUARD::B(G)
- Refutation
- S(h);
- Try
- B(D);
- Threat
- R1(E)
- Vars
- Q(d);CHECK,N_GUARD::S(C),XQ(d)
- S(h);N_GUARD::S(B)
- Q(d);N_GUARD::S(C)
- B(j);N_GUARD::S(C)
- B(j);N_GUARD::S(C),XB(j)
- Refutation
- B(b);
- Try
- B(D);
- Threat
- R1(E)
- Vars
- Q(d);CHECK,N_GUARD::S(C),XQ(d)
- Q(d);N_GUARD,XB(D)::S(C)
- B(b);SBLOCK::QAR1(A)
- S(h);N_GUARD::S(B)
- B(j);N_GUARD::S(C)
- B(j);N_GUARD::S(C),XB(j)
- Refutation
- P(i);
- Try
- B(D);
- Threat
- R1(E)
- Vars
- Q(d);CHECK,N_GUARD::S(C),XQ(d)
- S(h);N_GUARD::S(B)
- Q(d);N_GUARD::S(C)
- B(b);SBLOCK::QAR1(A)
- B(j);N_GUARD::S(C),XB(j)
- B(j);N_GUARD::S(C)
- P(i);N_GUARD::B(G)
- Refutation
- B(j);
- Try
- B(D);
- Threat
- R1(E)
- Vars
- Q(d);CHECK,N_GUARD::S(C),XQ(d)
- B(b);SBLOCK::QAR1(A)
- S(h);N_GUARD::S(B)
- Q(d);N_GUARD::S(C)
- B(j);N_GUARD::S(C)
- B(j);N_GUARD::S(C),XB(j)
- P(i);N_GUARD::B(G)
- Refutation
- S(k);XB(D)
- Try
- B(D);
- Threat
- R1(E)
- Vars
- Q(d);CHECK,N_GUARD::S(C),XQ(d)
- S(h);N_GUARD::S(B)
- Q(d);N_GUARD::S(C)
- B(b);SBLOCK::QAR1(A)
- B(j);N_GUARD::S(C),XB(j)
- B(j);N_GUARD::S(C)
- P(i);N_GUARD::B(G)
- Refutation
- B(j);
- Try
- B(D);
- Threat
- R1(E)
- Vars
- Q(d);CHECK,N_GUARD::S(C),XQ(d)
- B(b);SBLOCK::QAR1(A)
- S(h);N_GUARD::S(B)
- Q(d);N_GUARD::S(C)
- B(j);N_GUARD::S(C)
- B(j);N_GUARD::S(C),XB(j)
- P(i);N_GUARD::B(G)
- Refutation
- S(k);
- Try
- B(G);
- Threat
- QAR1(A)
- Vars
- Q(d);CHECK,N_GUARD::S(C),XQ(d)
- Q(d);N_GUARD::S(C)
- Q(d);N_GUARD::QAR1(A)
- Refutation
- B(j);
- Try
- Actual
- B(D);
- Threat
- R1(E)
- Vars
- Q(d);CHECK,N_GUARD::S(C),XQ(d)
- B(j);N_GUARD,XB(D)::S(C)
- B(b);SBLOCK::QAR1(A)
- S(h);N_GUARD::S(B)
- Q(d);N_GUARD::S(C)
- B(j);N_GUARD::S(C),XB(j)
- P(i);N_GUARD::B(G)
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).