MESON Chess Problem Database
Problem Display
PID: 170947 (b7/3p4/NR1nk1P1/1p5R/q1r2pKB/bp3p1B/3Q2N1/2r5 w - - 0 1)
Hartong, Jan
2nd HM., Problemisten, 1958
#2
9 + 12
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rb4
- 2.Rxd6#
- 2.Qxd6#
- 1...Re4
- 2.Kxf3#
- 1...Rc5
- 2.Rxd6#
- 2.Qxd6#
- 1...Rc6
- 2.Qd5#
- 1...Bb2
- 2.Rxd6#
- 2.Qxd6#
- 1...Bc5
- 2.Sc7#
- 1...Be4
- 2.Sxf4#
- 1...Bd5
- 2.Qxd5#
- 1...Bc6
- 2.Sc7#
- 1...b4
- 2.Rxd6#
- 2.Qxd6#
- 1...Rb4
- Tries
- 1.Sc5+?
- 1...Rxc5
- 2.Rxd6#
- 2.Qxd6#
- 1...Bxc5!
- 1...Rxc5
- 1.Bd8?
- threat
- 2.Kh4#
- 1...Rc5
- 2.Rxd6#
- 2.Qxd6#
- 1...Rc6
- 2.Qd5#
- 1...Be4
- 2.Sxf4#
- 1...Bc6
- 2.Sc7#
- 1...Rh1!
- threat
- 1.Rc5?
- threat
- 2.Kh5#
- 2.Sc7#
- 2.Rxd6#
- 2.Qxd6#
- 1...Qxa6
- 2.Kh5#
- 2.Qxd6#
- 1...Rxc5
- 2.Qxd6#
- 1...Bd5
- 2.Qxd5#
- 1...Rh1
- 2.Sc7#
- 2.Rxd6#
- 2.Qxd6#
- 1...Rd1
- 2.Kh5#
- 2.Sc7#
- 2.Rxd6#
- 1...Rd4
- 2.Kh5#
- 2.Sc7#
- 1...Be4
- 2.Sxf4#
- 2.Sc7#
- 2.Rxd6#
- 2.Qxd6#
- 1...Bc6
- 2.Sc7#
- 1...Bxc5!
- threat
- 1.Rh7?
- threat
- 2.Re7#
- 1...Ke5
- 2.Re7#
- 1...Rd4!
- threat
- 1.Rc6?
- threat
- 2.Kxf3#
- 2.Sc7#
- 2.Qd5#
- 1...Qxa6
- 2.Kxf3#
- 2.Qd5#
- 1...Rxc6
- 2.Qd5#
- 1...Bxc6
- 2.Sc7#
- 1...fxg2
- 2.Kf3#
- 2.Sc7#
- 2.Qd5#
- 1...Rh1
- 2.Sc7#
- 2.Qd5#
- 1...Qa5
- 2.Kxf3#
- 2.Qd5#
- 1...Rd1
- 2.Kxf3#
- 2.Sc7#
- 1...Rf1
- 2.Sc7#
- 2.Qd5#
- 1...R1c3
- 2.Sc7#
- 2.Qd5#
- 1...R4c3
- 2.Sc7#
- 2.Qd5#
- 1...Rd4
- 2.Kxf3#
- 2.Sc7#
- 1...Rc5
- 2.Sc7#
- 2.Rxd6#
- 2.Qxd6#
- 1...f2
- 2.Kf3#
- 2.Sc7#
- 2.Qd5#
- 1...dxc6!
- threat
- 1.Qe1+?
- 1...Re4
- 2.Kxf3#
- 2.Sxf4#
- 1...Be4
- 2.Kxf4#
- 2.Sxf4#
- 1...Rxe1!
- 1...Re4
- 1.Qe3+?
- 1...Re4
- 2.Kxf3#
- 2.Sxf4#
- 1...Be4
- 2.Kxf4#
- 2.Sxf4#
- 1...fxe3+!
- 1...Re4
- 1.Qxf4?
- threat
- 2.Kg3#
- 2.Re5#
- 1...Rh1
- 2.Re5#
- 1...Re1
- 2.Kg3#
- 1...Re4
- 2.Kxf3#
- 2.Kg3#
- 1...Rc5
- 2.Rxd6#
- 1...Rc6
- 2.Re5#
- 1...Bb2
- 2.Kg3#
- 2.Rxd6#
- 1...Be4
- 2.Re5#
- 2.Qe5#
- 2.Qf6#
- 2.Qf7#
- 1...Bc6
- 2.Sc7#
- 2.Re5#
- 1...Rxf4+!
- threat
- 1.Qe2+?
- 1...Re4
- 2.Kxf3#
- 2.Sxf4#
- 1...Be4
- 2.Kxf4#
- 2.Sxf4#
- 1...fxe2!
- 1...Re4
- 1.Qd4?
- threat
- 2.Kxf4#
- 2.Sxf4#
- 2.Re5#
- 2.Qe5#
- 2.Qf6#
- 1...fxg2
- 2.Kxf4#
- 2.Re5#
- 2.Qe5#
- 2.Qf6#
- 1...Rh1
- 2.Sxf4#
- 2.Re5#
- 2.Qe5#
- 2.Qf6#
- 1...Re1
- 2.Kxf4#
- 2.Sxf4#
- 2.Qf6#
- 1...Rg1
- 2.Kxf4#
- 2.Re5#
- 2.Qe5#
- 2.Qf6#
- 1...Rc5
- 2.Sxf4#
- 2.Rxd6#
- 2.Qf6#
- 2.Qxd6#
- 1...Rc6
- 2.Sxf4#
- 2.Re5#
- 2.Qe5#
- 2.Qf6#
- 2.Qd5#
- 1...Bb2
- 2.Kxf4#
- 2.Sxf4#
- 2.Re5#
- 2.Rxd6#
- 2.Qxd6#
- 1...Be4
- 2.Sxf4#
- 2.Re5#
- 2.Qe5#
- 2.Qf6#
- 1...Bc6
- 2.Sxf4#
- 2.Sc7#
- 2.Re5#
- 2.Qe5#
- 2.Qf6#
- 1...Rxd4!
- threat
- 1.Sc5+?
- Keys
- 1.Qd3!
- threat
- 2.Qf5#
- 1...Re4
- 2.Kxf3#
- 1...Rc5
- 2.Rxd6#
- 2.Qxd6#
- 1...Rc6
- 2.Qd5#
- 1...Be4
- 2.Sxf4#
- 1...Bc6
- 2.Sc7#
- threat
- 1.Qd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- R(f);::B(C)+K(D),XP(d)
- R(f);N_SPINS(i),S_CUTB(l)::QAB1(A)
- B(b);S_CUTR(f)::S(G)
- B(l);S_CUTR(f)::S(B),XP(g)
- B(l);N_GUARD::QAB1(A),XB(l)
- B(l);N_SPINS(i),S_CUTR(f)::S(G)
- Tries
- Try
- S(G);CHECK
- Refutation
- B(b);XS(G)
- Try
- B(E);
- Threat
- B(C)+K(D)
- Vars
- R(f);N_SPINS(i),S_CUTB(l)::QAB1(A)
- B(l);S_CUTR(f)::S(B),XP(g)
- B(l);N_SPINS(i),S_CUTR(f)::S(G)
- Refutation
- R(a);
- Try
- R(F);
- Threat
- DUALS(4)
- Vars
- R(f);XR(F)::QAR1(A),XS(i)
- B(l);N_GUARD::QAB1(A),XB(l)
- B(l);N_SPINS(i)::S(G)
- Refutation
- B(b);XR(F)
- Try
- R(F);
- Threat
- R1(F)
- Vars
- K(j);N_SPINS(i),P-FLIGHT::R(F)
- Refutation
- R(f);
- Try
- R(H);
- Threat
- DUALS(3)
- Vars
- R(f);N_SPINS(i),XR(H)::QAB1(A)
- B(l);N_SPINS(i),XR(H)::S(G)
- Refutation
- P(k);N_SPINS(i),XR(H)
- Try
- Q(A);CHECK
- Refutation
- R(a);XQ(A)
- Try
- Q(A);CHECK
- Refutation
- P(g);CHECK,XQ(A)
- Try
- Q(A);P_SPINQ(A),XP(g)
- Threat
- DUALS(2)
- Vars
- R(a);::R1(F)
- R(a);::B(C)+K(D)
- R(f);S_CUTB(b)::R1(H),XS(i)
- R(f);N_SPINS(i)::R1(F)
- Refutation
- R(f);CHECK,XQ(A)
- Try
- Q(A);CHECK
- Refutation
- P(d);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(5)
- Refutation
- R(f);XQ(A)
- Try
- Actual
- Q(A);
- Threat
- QAB1(A)
- Vars
- R(f);::B(C)+K(D),XP(d)
- R(f);N_SPINS(i),S_CUTB(l)::QAB1(A)
- B(l);S_CUTR(f)::S(B),XP(g)
- B(l);N_SPINS(i),S_CUTR(f)::S(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).