MESON Chess Problem Database
Problem Display
PID: 250162 (b1qn3K/5p2/8/1p1Q3B/3nR1R1/1p2NkN1/2p1prp1/b5B1 w - - 0 1)
Hartong, Jan
Chemnitzer Tageblatt, 1927
#2
8 + 13
| 6490 | yacpdb | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qa6
- 2.Rg5#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 1...Qb7
- 2.Rg5#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 1...Qc3
- 2.Rg5#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 1...Qc4
- 2.Rg5#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 1...Qc5
- 2.Rg5#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 1...Qc6
- 2.Rg5#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 1...Qc7
- 2.Rg5#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 1...Qb8
- 2.Rg5#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 1...Rf1
- 2.Ref4#
- 1...Sf5+
- 2.Rg7#
- 1...S4c6+
- 2.Re5#
- 1...S4e6+
- 2.Rg7#
- 1...S8c6+
- 2.Re8#
- 1...S8e6+
- 2.Rg8#
- 1...Sb7+
- 2.Re8#
- 1...f5
- 2.Rg5#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 1...Qa6
- Tries
- 1.Sef5?
- threat
- 2.Sh4#
- 2.Re3#
- 2.Ref4#
- 2.Rgf4#
- 2.Rh4#
- 2.Rg5#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 1...Sxf5+
- 2.Rg7#
- 1...S4c6+
- 2.Rd4#
- 2.Re5#
- 2.Rg7#
- 1...S4e6+
- 2.Rg7#
- 1...S8c6+
- 2.Re8#
- 2.Rg8#
- 1...S8e6+
- 2.Rg8#
- 1...Sb7+
- 2.Re8#
- 2.Rg8#
- 1...Qxf5!
- threat
- 1.Sgf5?
- threat
- 2.Sh4#
- 2.Ref4#
- 2.Rxg2#
- 2.Rg3#
- 2.Rgf4#
- 2.Rh4#
- 2.Rg5#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 1...Sxf5+
- 2.Rg7#
- 1...S4c6+
- 2.Rd4#
- 2.Re5#
- 2.Rg7#
- 1...S4e6+
- 2.Rg7#
- 1...S8c6+
- 2.Re8#
- 2.Rg8#
- 1...S8e6+
- 2.Rg8#
- 1...Sb7+
- 2.Re8#
- 2.Rg8#
- 1...Bxd5
- 2.Sh4#
- 2.Ref4#
- 2.Rgf4#
- 2.Rh4#
- 1...e1Q
- 2.Rxg2#
- 2.Rg3#
- 2.Rgf4#
- 2.Rh4#
- 2.Rg5#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 1...e1S
- 2.Rxg2#
- 2.Rg3#
- 2.Rgf4#
- 2.Rh4#
- 2.Rg5#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 1...e1B
- 2.Rxg2#
- 2.Rg3#
- 2.Rgf4#
- 2.Rh4#
- 2.Rg5#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 1...e1R
- 2.Rxg2#
- 2.Rg3#
- 2.Rgf4#
- 2.Rh4#
- 2.Rg5#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 1...Qxf5!
- threat
- 1.Rxd4+?
- 1...Kxe3
- 2.Re4#
- 1...Bxd5!
- 1...Kxe3
- 1.Rh4+?
- 1...Kxg3
- 2.Bh2#
- 1...Qg4!
- 1...Kxg3
- 1.Qe6?
- threat
- 2.Ref4#
- 2.Rg5#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 1...Sf5+
- 2.Rg7#
- 1...S4c6+
- 2.Rg7#
- 1...S4xe6+
- 2.Rg7#
- 1...S8c6+
- 2.Rg8#
- 1...S8xe6+
- 2.Rg8#
- 1...Sb7+
- 2.Rg8#
- 1...Bxe4
- 2.Qxe4#
- 1...fxe6
- 2.Rg5#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 1...Qc5
- 2.Ref4#
- 2.Rg5#
- 1...Qc7
- 2.Rg5#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 1...Qb8
- 2.Rg5#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 1...Qxe6!
- threat
- 1.Qxf7+?
- 1...Qf5
- 2.Rg5#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 1...Sf5+
- 2.Rg7#
- 1...Sxf7+!
- 1...Qf5
- 1.Qf5+?
- 1...Sxf5+
- 2.Rg7#
- 1...Qxf5!
- 1...Sxf5+
- 1.Sef5?
- Keys
- 1.Bh2!
- threat
- 2.Rgf4#
- 1...Sf5+
- 2.Rg7#
- 1...S4c6+
- 2.Re5#
- 1...S4e6+
- 2.Rg7#
- 1...S8c6+
- 2.Re8#
- 1...S8e6+
- 2.Rg8#
- 1...Sb7+
- 2.Re8#
- 1...Qxg4
- 2.Bxg4#
- threat
- 1.Bh2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- R(d);::QAB(F)+R(D),DCHECK
- S(h);CHECK,S_CUTQ(l)::B(G)+R(E)
- S(h);CHECK,S_CUTB(k)::QAB(F)+R(D)
- S(m);CHECK,S_CUTB(k)::QAB(F)+R(D)
- S(m);CHECK,S_CUTQ(l)::B(G)+R(E)
- Tries
- Try
- S(B);
- Threat
- DUALS(9)
- Vars
- S(h);CHECK,XS(B)::B(G)+R(E)
- S(h);CHECK::B(G)+R(E)
- S(m);CHECK::B(G)+R(E)
- Refutation
- Q(l);XS(B)
- Try
- S(C);
- Threat
- DUALS(10)
- Vars
- S(h);CHECK,XS(C)::B(G)+R(E)
- S(h);CHECK::B(G)+R(E)
- S(m);CHECK::B(G)+R(E)
- Refutation
- Q(l);XS(C)
- Try
- R(D);CHECK,P_SPINR(D),XS(h)
- Vars
- K(g);N_GUARD,P-FLIGHT,P_SPINR(d),S_CUTQ(l),XS(B)::R1(E)
- Refutation
- B(k);XQ(F)
- Try
- R(E);CHECK
- Vars
- K(g);P-FLIGHT,S_CUTQ(l),XS(C)::B(A)
- Refutation
- Q(l);P_SPINQ(l)
- Try
- Q(F);
- Threat
- DUALS(5)
- Vars
- S(h);CHECK::B(G)+R(E)
- S(h);CHECK,XQ(F)::B(G)+R(E)
- S(m);CHECK::B(G)+R(E)
- S(m);CHECK,XQ(F)::B(G)+R(E)
- B(k);OGATE,XR(D)::QAB1(F),XB(k)
- Refutation
- Q(l);XQ(F)
- Try
- Q(F);CHECK,XP(j)
- Vars
- S(h);CHECK,P_SPINS(h)::B(G)+R(E)
- Refutation
- S(m);CHECK,XQ(F)
- Try
- Q(F);CHECK
- Vars
- S(h);CHECK,XQ(F)::B(G)+R(E)
- Refutation
- Q(l);XQ(F)
- Try
- Actual
- B(A);
- Threat
- B(G)+R(E),DCHECK
- Vars
- S(h);CHECK,S_CUTQ(l)::B(G)+R(E)
- S(h);CHECK,S_CUTB(k)::QAB(F)+R(D)
- S(m);CHECK,S_CUTB(k)::QAB(F)+R(D)
- S(m);CHECK,S_CUTQ(l)::B(G)+R(E)
- Q(l);OGATE,P_SPINQ(l),XR(E)::B(G),XQ(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).