MESON Chess Problem Database
Problem Display
PID: 41269 (2N5/2R1Kp1n/3p2p1/1r1k4/1ppB1QN1/4pb2/3n1r2/4q3 w - - 0 1)
Groeneveld, Cornelis
van Gool, Johann Christoffel
2nd Comm., US Problem Bulletin, 1995
#2
6 + 13
| 102 | Probleemblad | 2002 |
SOLUTION
- SOUND
- Sets
- 1...Qa1
- 2.Sxe3#
- 1...Qb1
- 2.Sxe3#
- 1...Qc1
- 2.Sxe3#
- 1...Qd1
- 2.Sxe3#
- 1...Qf1
- 2.Sxe3#
- 1...Qg1
- 2.Sxe3#
- 1...Qh1
- 2.Sxe3#
- 1...Ra5
- 2.Sb6#
- 1...Rc5
- 2.Sb6#
- 1...Rb6
- 2.Sxb6#
- 1...Be2
- 2.Sxe3#
- 1...Be4
- 2.Qxd6#
- 1...Sg5
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sf8
- 2.Sf6#
- 1...e2
- 2.Se3#
- 1...Qa1
- Tries
- 1.Ba1?
- threat
- 2.Qd4#
- 1...Qxa1
- 2.Sxe3#
- 1...Be4
- 2.Qxd6#
- 1...Sb3
- 2.Qxc4#
- 1...Se4
- 2.Qxf7#
- 1...c3!
- threat
- 1.Bb2?
- threat
- 2.Qd4#
- 1...Be4
- 2.Qxd6#
- 1...Sb3
- 2.Qxc4#
- 1...Se4
- 2.Qxf7#
- 1...c3!
- threat
- 1.Bc3?
- threat
- 2.Qd4#
- 1...Be4
- 2.Qxd6#
- 1...Sb3
- 2.Qxc4#
- 1...Se4
- 2.Qxf7#
- 1...bxc3!
- threat
- 1.Bxe3?
- threat
- 2.Qd4#
- 1...Qxe3+
- 2.Sxe3#
- 1...Be4
- 2.Qxd6#
- 1...Sb3
- 2.Qxc4#
- 1...Se4
- 2.Qxf7#
- 1...Qa1!
- threat
- 1.Bc5?
- threat
- 2.Qd4#
- 1...Rxc5
- 2.Sb6#
- 1...dxc5
- 2.Qe5#
- 1...Qa1
- 2.Sxe3#
- 1...Be4
- 2.Qxd6#
- 1...Se4
- 2.Qxf7#
- 1...Sb3!
- threat
- 1.Be5?
- threat
- 2.Qd4#
- 1...dxe5
- 2.Qxe5#
- 1...Qa1
- 2.Sxe3#
- 1...Sb3
- 2.Qxc4#
- 1...Se4
- 2.Qxf7#
- 1...Be4!
- threat
- 1.Bb6?
- threat
- 2.Qd4#
- 1...Rxb6
- 2.Sxb6#
- 1...Qa1
- 2.Sxe3#
- 1...Be4
- 2.Qxd6#
- 1...Sb3
- 2.Qxc4#
- 1...Se4
- 2.Qxf7#
- 1...Rc5!
- threat
- 1.Bf6?
- threat
- 2.Qd4#
- 1...Sxf6
- 2.Sxf6#
- 1...Qa1
- 2.Sxe3#
- 1...Be4
- 2.Qxd6#
- 1...Sb3
- 2.Qxc4#
- 1...Se4!
- threat
- 1.Bg7?
- threat
- 2.Qd4#
- 1...Qa1
- 2.Sxe3#
- 1...Be4
- 2.Qxd6#
- 1...Sb3
- 2.Qxc4#
- 1...Se4
- 2.Qxf7#
- 1...Sf6
- 2.Sxf6#
- 1...f6!
- threat
- 1.Bh8?
- threat
- 2.Qd4#
- 1...Qa1
- 2.Sxe3#
- 1...Be4
- 2.Qxd6#
- 1...Sb3
- 2.Qxc4#
- 1...Se4
- 2.Qxf7#
- 1...Sf6
- 2.Sxf6#
- 1...f6!
- threat
- 1.Ba1?
- Keys
- 1.Ba7!
- threat
- 2.Qd4#
- 1...Qa1
- 2.Sxe3#
- 1...Rc5
- 2.Sb6#
- 1...Rb6
- 2.Sxb6#
- 1...Be4
- 2.Qxd6#
- 1...Sb3
- 2.Qxc4#
- 1...Se4
- 2.Qxf7#
- threat
- 1.Ba7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 12
- Sets
- Q(a);N_GUARD::S(C),XP(d)
- R(h);N_GUARD::S(F)
- R(h);N_GUARD::S(F),XR(h)
- B(e);S_CUTQ(a)::S(C),XP(d)
- B(e);SBLOCK::QAR1(B),XP(j)
- S(m);N_GUARD::S(C)
- S(m);N_GUARD::S(C),XS(m)
- P(d);S_CUTQ(a)::S(C)
- Tries
- Try
- B(A);
- Threat
- QAR1(B)
- Vars
- Q(a);N_GUARD,XB(A)::S(C),XP(d)
- B(e);SBLOCK::QAR1(B),XP(j)
- S(b);N_GUARD::QAB1(B),XP(g)
- S(b);SBLOCK::QAB(B),XP(l)
- Refutation
- P(g);
- Try
- B(A);
- Threat
- QAR1(B)
- Vars
- B(e);SBLOCK::QAR1(B),XP(j)
- S(b);N_GUARD::QAB1(B),XP(g)
- S(b);SBLOCK::QAB(B),XP(l)
- Refutation
- P(g);
- Try
- B(A);
- Threat
- QAR1(B)
- Vars
- B(e);SBLOCK::QAR1(B),XP(j)
- S(b);N_GUARD::QAB1(B),XP(g)
- S(b);SBLOCK::QAB(B),XP(l)
- Refutation
- P(f);XB(A)
- Try
- B(A);P_SPINB(A),XP(d)
- Threat
- QAR1(B)
- Vars
- Q(a);CHECK,XB(A)::S(C),XQ(a)
- B(e);N_PINB(A),SBLOCK::QAR1(B),XP(j)
- S(b);N_GUARD::QAB1(B),XP(g)
- S(b);N_PINB(A),SBLOCK::QAB(B),XP(l)
- Refutation
- Q(a);N_PINB(A)
- Try
- B(A);
- Threat
- QAR1(B)
- Vars
- R(h);N_GUARD,XB(A)::S(F)
- P(j);N_GUARD,XB(A)::QAR1(B)
- Q(a);N_GUARD::S(C),XP(d)
- B(e);SBLOCK::QAR1(B),XP(j)
- S(b);SBLOCK::QAB(B),XP(l)
- Refutation
- S(b);
- Try
- B(A);
- Threat
- QAR1(B)
- Vars
- P(j);OGATE,XB(A)::QAR1(B),XP(j)
- Q(a);N_GUARD::S(C),XP(d)
- S(b);N_GUARD::QAB1(B),XP(g)
- S(b);SBLOCK::QAB(B),XP(l)
- Refutation
- B(e);
- Try
- B(A);
- Threat
- QAR1(B)
- Vars
- R(h);XB(A)::S(F),XR(h)
- Q(a);N_GUARD::S(C),XP(d)
- B(e);SBLOCK::QAR1(B),XP(j)
- S(b);N_GUARD::QAB1(B),XP(g)
- S(b);SBLOCK::QAB(B),XP(l)
- Refutation
- R(h);
- Try
- B(A);
- Threat
- QAR1(B)
- Vars
- S(m);XB(A)::S(C),XS(m)
- Q(a);N_GUARD::S(C),XP(d)
- B(e);SBLOCK::QAR1(B),XP(j)
- S(b);N_GUARD::QAB1(B),XP(g)
- Refutation
- S(b);
- Try
- B(A);
- Threat
- QAR1(B)
- Vars
- Q(a);N_GUARD::S(C),XP(d)
- B(e);SBLOCK::QAR1(B),XP(j)
- S(b);N_GUARD::QAB1(B),XP(g)
- S(b);SBLOCK::QAB(B),XP(l)
- S(m);N_GUARD::S(C),XS(m)
- Refutation
- P(l);
- Try
- B(A);
- Threat
- QAR1(B)
- Vars
- Q(a);N_GUARD::S(C),XP(d)
- B(e);SBLOCK::QAR1(B),XP(j)
- S(b);N_GUARD::QAB1(B),XP(g)
- S(b);SBLOCK::QAB(B),XP(l)
- S(m);N_GUARD::S(C),XS(m)
- Refutation
- P(l);
- Try
- Actual
- B(A);
- Threat
- QAR1(B)
- Vars
- Q(a);N_GUARD::S(C),XP(d)
- R(h);N_GUARD::S(F)
- R(h);N_GUARD::S(F),XR(h)
- B(e);SBLOCK::QAR1(B),XP(j)
- S(b);N_GUARD::QAB1(B),XP(g)
- S(b);SBLOCK::QAB(B),XP(l)
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).