MESON Chess Problem Database
Problem Display
PID: 22133 (3K4/bpp4n/brpR4/n3N3/Rq2k1P1/5pP1/B1PP3p/BQ6 w - - 0 1)
Hartong, Jan
ten Cate, Pieter
Tijdschrift vd NSB, 1924
#2
11 + 12
SOLUTION
- SOUND
- Sets
- 1...Qc4
- 2.Qe1#
- 1...Bd3
- 2.cxd3#
- 1...Sb3
- 2.c4#
- 1...f2
- 2.Qh1#
- 1...c5
- 2.Bd5#
- 1...Qc4
- Tries
- 1.Sd3?
- threat
- 2.Sf2#
- 2.Sc5#
- 2.Re6#
- 2.Qe1#
- 1...Bxd3
- 2.Re6#
- 2.cxd3#
- 1...cxd6
- 2.Sf2#
- 2.Qe1#
- 1...f2
- 2.Qh1#
- 1...h1Q
- 2.Sf2#
- 2.Sc5#
- 2.Re6#
- 1...h1S
- 2.Sc5#
- 2.Re6#
- 2.Qe1#
- 1...h1R
- 2.Sf2#
- 2.Sc5#
- 2.Re6#
- 1...Qc4
- 2.Sf2#
- 2.Sc5#
- 2.Qe1#
- 1...Qd4
- 2.Raxd4#
- 2.Rdxd4#
- 2.Qe1#
- 1...Bc4
- 2.Sf2#
- 2.Rd4#
- 2.Qe1#
- 1...Sb3
- 2.Sf2#
- 2.Qe1#
- 1...Sc4
- 2.Sf2#
- 2.Rd4#
- 1...Sg5
- 2.Sf2#
- 2.Sc5#
- 2.Qe1#
- 1...Sf8
- 2.Sf2#
- 2.Sc5#
- 2.Qe1#
- 1...c5
- 2.Sf2#
- 2.Sxc5#
- 2.Bd5#
- 2.Qe1#
- 1...Rb5!
- threat
- 1.Sd7?
- threat
- 2.Sc5#
- 2.Re6#
- 1...f2
- 2.Qh1#
- 1...Qc4
- 2.Sc5#
- 2.Qe1#
- 1...Qd4
- 2.Raxd4#
- 2.Rdxd4#
- 2.Re6#
- 1...Rb5
- 2.c3#
- 1...Bc4
- 2.Rd4#
- 1...Sb3
- 2.c4#
- 1...Sc4
- 2.Rd4#
- 1...Sg5
- 2.Sc5#
- 2.Sf6#
- 1...Sf8
- 2.Sc5#
- 2.Sf6#
- 1...c5
- 2.Sxc5#
- 2.Bd5#
- 1...cxd6!
- threat
- 1.Rxb4+?
- 1...Bc4
- 2.Qe1#
- 1...Sc4
- 2.Qe1#
- 1...Rxb4!
- 1...Bc4
- 1.Qb3?
- threat
- 2.Qe3#
- 2.Qxf3#
- 1...Qd4
- 2.Qe3#
- 1...h1Q
- 2.Qe3#
- 1...h1B
- 2.Qe3#
- 1...Rb5
- 2.Qd3#
- 2.Qxf3#
- 1...Be2
- 2.Qe3#
- 1...Bd3
- 2.Qxd3#
- 2.cxd3#
- 1...Sc4
- 2.Qd3#
- 2.Qxf3#
- 1...Sg5
- 2.Qe3#
- 1...f2
- 2.Qe3#
- 2.Qf3#
- 1...Sxb3!
- threat
- 1.c3+?
- 1...Kxe5
- 2.Re6#
- 1...Bd3!
- 1...Kxe5
- 1.Sd3?
- Keys
- 1.Sf7!
- threat
- 2.Re6#
- 1...cxd6
- 2.Sxd6#
- 1...f2
- 2.Qh1#
- 1...Qc4
- 2.Qe1#
- 1...Qd4
- 2.Raxd4#
- 2.Rdxd4#
- 1...Rb5
- 2.c3#
- 1...Bc4
- 2.Rd4#
- 1...Sb3
- 2.c4#
- 1...Sc4
- 2.Rd4#
- 1...Sg5
- 2.Sxg5#
- 1...Sf8
- 2.Sg5#
- 1...c5
- 2.Bd5#
- threat
- 1.Sf7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 1
- Sets
- Q(c);S_CUTB(f)::QAR(B)
- B(f);OGATE::P(D),XB(f)
- S(e);::QAB(B)+P(D)
- P(b);OGATEB::QAB(B)
- P(h);N_GUARD::B(C)
- Tries
- Try
- S(I);
- Threat
- DUALS(4)
- Vars
- P(b);OGATEB::QAB(B)
- Refutation
- R(g);
- Try
- S(I);
- Threat
- DUALS(2)
- Vars
- P(b);OGATEB::QAB(B)
- R(g);S_CUTB(f)::QAB(B)+P(D)
- B(f);N_SPINQ(c),S_CUTQ(c)::R1(J)
- S(e);::QAB(B)+P(D)
- S(e);N_SPINQ(c),S_CUTQ(c)::R1(J)
- Refutation
- P(k);XR(J)
- Try
- R(G);CHECK,XQ(c)
- Vars
- B(f);P_SPINB(f)::QAR(B)
- S(e);P_SPINS(e)::QAR(B)
- Refutation
- R(g);XR(G)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- Q(c);P_PINR(J)::QAR1(B)
- P(a);::QAR1(B)
- B(f);::QAR1(B)
- S(l);::QAR1(B)
- Refutation
- S(e);XQ(B)
- Try
- P(D);CHECK
- Vars
- K(d);N_SPINQ(c),P-FLIGHT,XS(I)::R1(J)
- Refutation
- B(f);P_SPINB(f)
- Try
- Actual
- S(I);
- Threat
- R(J)
- Vars
- P(k);XR(J)::S(I),XP(k)
- P(b);OGATEB::QAB(B)
- Q(c);S_CUTB(f)::QAR(B)
- R(g);S_CUTB(f)::QAB(B)+P(D)
- B(f);N_SPINQ(c),S_CUTQ(c)::R1(J)
- S(e);::QAB(B)+P(D)
- S(e);N_SPINQ(c),S_CUTQ(c)::R1(J)
- S(l);N_GUARD::S(I),XS(l)
- S(l);N_GUARD::S(I)
- P(h);N_GUARD::B(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).