MESON Chess Problem Database
Problem Display
PID: 186699 (2n1R3/qp1r1p1B/b4k1P/2NR2p1/1P1KP2r/4B2n/1QP4p/6b1 w - - 0 1)
Rietveld, Johannes Jacob
Chess, 1960
#2
11 + 12
SOLUTION
- SOUND
- Sets
- 1...Qxc5+
- 2.Kxc5#
- 1...Qb8
- 2.Sxd7#
- 1...Qa8
- 2.Sxd7#
- 1...Rxe4+
- 2.Kxe4#
- 1...Rh5
- 2.e5#
- 1...Rxd5+
- 2.Kxd5#
- 1...Rc7
- 2.Rf5#
- 1...Re7
- 2.Rf5#
- 1...Bxe3+
- 2.Kxe3#
- 1...Bd3
- 2.Kxd3#
- 1...Bc4
- 2.Kxc4#
- 1...Sf2
- 2.Bxg5#
- 1...Sf4
- 2.e5#
- 1...g4
- 2.e5#
- 1...b5
- 2.Kd3#
- 1...Qxc5+
- Tries
- 1.Bf2?
- threat
- 2.Ke3#
- 1...Qxc5+
- 2.Kxc5#
- 1...Rxe4+
- 2.Kxe4#
- 1...Rxd5+
- 2.Kxd5#
- 1...Qb8
- 2.Sxd7#
- 1...Re7
- 2.Rf5#
- 1...Bxf2+!
- threat
- 1.Rd6+?
- 1...Sxd6
- 2.Kd5#
- 1...Rxd6+!
- 1...Sxd6
- 1.Rxd7?
- threat
- 2.Kd5#
- 1...Qxc5+
- 2.Kxc5#
- 1...Rxe4+
- 2.Kxe4#
- 1...Bxe3+
- 2.Kxe3#
- 1...Bc4
- 2.Kxc4#
- 1...Sf4
- 2.e5#
- 1...Sb6
- 2.Rd6#
- 1...Se7
- 2.Rd6#
- 1...Qb8!
- threat
- 1.b5?
- threat
- 2.Kd3#
- 2.Kc4#
- 1...Qxc5+
- 2.Kxc5#
- 1...Rxe4+
- 2.Kxe4#
- 1...Rxd5+
- 2.Kxd5#
- 1...Bxe3+
- 2.Kxe3#
- 1...Qb8
- 2.Sxd7#
- 1...Re7
- 2.Rf5#
- 1...Sf2
- 2.Kc4#
- 2.Bxg5#
- 1...Sf4
- 2.Kc4#
- 2.e5#
- 1...Sb6
- 2.Kd3#
- 1...Sd6
- 2.Kd3#
- 1...Bxb5!
- threat
- 1.Bf2?
- Keys
- 1.c4!
- threat
- 2.Kd3#
- 1...Qxc5+
- 2.Kxc5#
- 1...Rxe4+
- 2.Kxe4#
- 1...Rxd5+
- 2.Kxd5#
- 1...Bxe3+
- 2.Kxe3#
- 1...Bxc4
- 2.Kxc4#
- 1...Qb8
- 2.Sxd7#
- 1...Re7
- 2.Rf5#
- 1...Sf2
- 2.Bxg5#
- 1...Sf4
- 2.e5#
- threat
- 1.c4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 6
- Sets
- Q(h);CHECK,XS(G)::QAB(A)+K(E),XQ(h)
- Q(h);N_PINS(G)::S(G),XR(j)
- R(d);CHECK,XP(F)::QAB(A)+K(E),XR(d)
- R(d);N_PINP(F)::P(F)
- R(j);CHECK,XR(H)::QAB(A)+K(E),XR(j)
- R(j);N_PINR(H)::R1(H)
- B(a);CHECK,XB(C)::QAB(A)+K(E),XB(a)
- B(f);::QAB(A)+K(E),XB(f)
- S(c);N_PINB(C)::B(C),XP(e)
- S(c);N_PINP(F)::P(F)
- P(e);N_PINP(F)::P(F)
- P(i);::QAB(A)+K(E)
- Tries
- Try
- B(C);
- Threat
- QAB(A)+K(E)
- Vars
- Q(h);CHECK,XS(G)::QAB(A)+K(E),XQ(h)
- R(d);CHECK,XP(F)::QAB(A)+K(E),XR(d)
- R(j);CHECK,XR(H)::QAB(A)+K(E),XR(j)
- Q(h);N_PINS(G)::S(G),XR(j)
- R(j);N_PINR(H)::R1(H)
- Refutation
- B(a);CHECK,XB(C)
- Try
- R(H);CHECK
- Vars
- S(l);XR(H)::QAB(A)+K(E)
- Refutation
- R(j);CHECK,XR(H)
- Try
- R(H);N_SPINR(H),XR(j)
- Threat
- QAB(A)+K(E)
- Vars
- Q(h);CHECK,XS(G)::QAB(A)+K(E),XQ(h)
- R(d);CHECK,XP(F)::QAB(A)+K(E),XR(d)
- B(a);CHECK,XB(C)::QAB(A)+K(E),XB(a)
- B(f);::QAB(A)+K(E),XB(f)
- S(c);N_PINP(F)::P(F)
- S(l);N_GUARD,N_PINS(G)::R(H)
- S(l);N_GUARD::R(H)
- Refutation
- Q(h);N_PINS(G)
- Try
- P(D);
- Threat
- DUALS(2)
- Vars
- Q(h);CHECK,XS(G)::QAB(A)+K(E),XQ(h)
- R(d);CHECK,XP(F)::QAB(A)+K(E),XR(d)
- R(j);CHECK,XR(H)::QAB(A)+K(E),XR(j)
- B(a);CHECK,XB(C)::QAB(A)+K(E),XB(a)
- Q(h);N_PINS(G)::S(G),XR(j)
- R(j);N_PINR(H)::R1(H)
- S(l);N_PINS(G)::QAB(A)+K(E)
- S(l);N_PINR(H)::QAB(A)+K(E)
- Refutation
- B(f);XP(D)
- Try
- Actual
- P(B);
- Threat
- QAB(A)+K(E)
- Vars
- Q(h);CHECK,XS(G)::QAB(A)+K(E),XQ(h)
- R(d);CHECK,XP(F)::QAB(A)+K(E),XR(d)
- R(j);CHECK,XR(H)::QAB(A)+K(E),XR(j)
- B(a);CHECK,XB(C)::QAB(A)+K(E),XB(a)
- B(f);XP(B)::QAB(A)+K(E),XB(f)
- Q(h);N_PINS(G)::S(G),XR(j)
- R(j);N_PINR(H)::R1(H)
- S(c);N_PINB(C)::B(C),XP(e)
- S(c);N_PINP(F)::P(F)
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).