MESON Chess Problem Database
Problem Display
PID: 178349 (7q/4p1B1/2bNB2Q/4b3/p4N2/K1k3n1/pR1R1n2/r1r5 w - - 0 1)
Hartong, Jan
4/5 Prize, Ostdeutsche Morgenpost TT, 1955
#2
8 + 11
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qxh6
- 2.Bxe5#
- 1...Qh7
- 2.Bxe5#
- 1...Qa8
- 2.Bxe5#
- 1...Qb8
- 2.Bxe5#
- 1...Qc8
- 2.Bxe5#
- 1...Qd8
- 2.Bxe5#
- 1...Qe8
- 2.Bxe5#
- 1...Qf8
- 2.Bxe5#
- 1...Qg8
- 2.Bxe5#
- 1...Rb1
- 2.Rbc2#
- 1...Rd1
- 2.Rbc2#
- 1...Re1
- 2.Rbc2#
- 1...Rf1
- 2.Rbc2#
- 1...Rg1
- 2.Rbc2#
- 1...Rh1
- 2.Rbc2#
- 1...Rc2
- 2.Rbxc2#
- 1...Bh1
- 2.Sb5#
- 1...Bg2
- 2.Sb5#
- 1...Bf3
- 2.Sb5#
- 1...Be4
- 2.Sb5#
- 1...Bb5
- 2.Sd5#
- 2.Sxb5#
- 1...Bd5
- 2.Sxd5#
- 1...Bb7
- 2.Sb5#
- 1...Bd7
- 2.Sd5#
- 1...Ba8
- 2.Sb5#
- 1...Be8
- 2.Sd5#
- 1...Sd1
- 2.Rd3#
- 1...Sfh1
- 2.Rd3#
- 1...Sd3
- 2.Rxd3#
- 1...Sh3
- 2.Rd3#
- 1...Sfe4
- 2.Rd3#
- 1...Sg4
- 2.Rd3#
- 1...Sf1
- 2.Se2#
- 1...Sgh1
- 2.Se2#
- 1...Se2
- 2.Sxe2#
- 1...Sge4
- 2.Se2#
- 1...Sf5
- 2.Se2#
- 1...Sh5
- 2.Se2#
- 1...Qxh6
- Tries
- 1.Se4+?
- 1...Sfxe4
- 2.Rd3#
- 1...Sgxe4
- 2.Se2#
- 1...Bxe4!
- 1...Sfxe4
- 1.Qh3?
- threat
- 2.Se2#
- 1...Qxh3
- 2.Bxe5#
- 1...Sxh3
- 2.Rd3#
- 1...Rc2
- 2.Rbxc2#
- 1...Sd3
- 2.Rxd3#
- 1...Re1
- 2.Rbc2#
- 1...Bf3
- 2.Sb5#
- 1...Bb5
- 2.Sd5#
- 2.Sxb5#
- 1...Qh5!
- threat
- 1.Se4+?
- Keys
- 1.Qh1!
- threat
- 2.Qxc6#
- 1...Qxh1
- 2.Bxe5#
- 1...Rxh1
- 2.Rbc2#
- 1...Bxh1
- 2.Sb5#
- 1...Sfxh1
- 2.Rd3#
- 1...Sgxh1
- 2.Se2#
- 1...Rc2
- 2.Rbxc2#
- 1...Sd3
- 2.Rxd3#
- 1...Qa8
- 2.Bxe5#
- 1...Qc8
- 2.Bxe5#
- 1...Qe8
- 2.Bxe5#
- 1...Bg2
- 2.Sb5#
- 1...Bf3
- 2.Sb5#
- 1...Be4
- 2.Sb5#
- 1...Bb5
- 2.Sd5#
- 2.Sxb5#
- 1...Bd5
- 2.Sxd5#
- 1...Bb7
- 2.Sb5#
- 1...Bd7
- 2.Sd5#
- 1...Ba8
- 2.Sb5#
- 1...Be8
- 2.Sd5#
- 1...Sfe4
- 2.Rd3#
- 2.Qf3#
- 1...Sge4
- 2.Se2#
- threat
- 1.Qh1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 19
- Sets
- Q(k);N_GUARD,XQ(G)::B(H),XB(h)
- Q(k);N_GUARD::B(H),XB(h)
- R(b);N_GUARD::R1(A)
- R(b);N_GUARD::R1(A),XR(b)
- B(i);N_GUARD::S(E)
- B(i);N_GUARD::S(D),XB(i)
- B(i);N_GUARD::S(D)
- S(d);N_GUARD::R1(B)
- S(d);N_GUARD::R1(B),XS(d)
- S(f);N_GUARD::S(D)
- S(f);N_GUARD::S(D),XS(f)
- Tries
- Try
- S(E);CHECK
- Vars
- S(d);XS(E)::R1(B)
- S(f);XS(E)::S(D)
- Refutation
- B(i);XS(E)
- Try
- Q(G);P_PINS(f)
- Threat
- S(D)
- Vars
- Q(k);N_GUARD,N_SPINS(f),XQ(G)::B(H),XB(h)
- S(d);N_GUARD,N_SPINS(f),XQ(G)::R1(B)
- R(b);N_GUARD::R1(A),XR(b)
- S(d);N_GUARD,N_SPINS(f)::R1(B),XS(d)
- R(b);N_GUARD::R1(A)
- B(i);N_GUARD,N_SPINS(f)::S(E)
- Refutation
- Q(k);
- Try
- Actual
- Q(G);
- Threat
- QAR(G),XB(i)
- Vars
- Q(k);N_GUARD,XQ(G)::B(H),XB(h)
- R(b);N_GUARD,XQ(G)::R1(A)
- B(i);N_GUARD,XQ(G)::S(E)
- S(d);N_GUARD,XQ(G)::R1(B)
- S(f);N_GUARD,XQ(G)::S(D)
- R(b);N_GUARD::R1(A),XR(b)
- S(d);N_GUARD::R1(B),XS(d)
- Q(k);N_GUARD::B(H),XB(h)
- B(i);N_GUARD::S(E)
- B(i);N_GUARD::S(D),XB(i)
- B(i);N_GUARD::S(D)
- S(f);N_GUARD::S(D)
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).