MESON Chess Problem Database
Problem Display
PID: 83635 (b3R3/1B1KNr2/6p1/4k3/3Np3/1P2p3/pB1q4/Q4R2 w - - 0 1)
Ellerman, Arnoldo
Skakbladet, 1935
#2
9 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.Sc6#
- 1...Qe1
- 2.Sc6#
- 1...Qc3
- 2.Sc6#
- 1...Qb4
- 2.Sc6#
- 1...Qa5
- 2.Sc6#
- 1...Qxb2
- 2.Sc6#
- 1...Qc2
- 2.Sxc2#
- 2.Sc6#
- 1...Qe2
- 2.Sc2#
- 2.Sxe2#
- 2.Sc6#
- 1...Qf2
- 2.Se2#
- 1...Qg2
- 2.Sc2#
- 2.Se2#
- 2.Sc6#
- 1...Qh2
- 2.Sc2#
- 2.Se2#
- 2.Sc6#
- 1...Qxd4+
- 2.Bxd4#
- 1...Rxf1
- 2.Sd5#
- 1...Rf2
- 2.Sd5#
- 1...Rf3
- 2.Sd5#
- 1...Rf4
- 2.Sd5#
- 2.Sg8#
- 1...Rf5
- 2.Sd5#
- 2.Sg8#
- 1...Rf6
- 2.Sxg6#
- 1...Rxe7+
- 2.Rxe7#
- 1...Rf8
- 2.Sxg6#
- 1...Qc1
- Tries
- 1.Rf5+?
- 1...Rxf5
- 2.Sd5#
- 1...gxf5!
- 1...Rxf5
- 1.Rxf7?
- threat
- 2.Sd5#
- 2.Sxg6#
- 2.Sc8#
- 2.Sg8#
- 1...Qxd4+
- 2.Sd5#
- 2.Bxd4#
- 1...Qxb2
- 2.Sdc6#
- 1...Qc3
- 2.Sdc6#
- 1...Qb4
- 2.Sf3#
- 2.Sdc6#
- 2.Sxg6#
- 1...g5
- 2.Sd5#
- 2.Sg6#
- 2.Sc8#
- 2.Sg8#
- 2.Rf5#
- 1...Bxb7!
- threat
- 1.Qc1?
- threat
- 2.Qc5#
- 2.Qc7#
- 1...Rxe7+
- 2.Rxe7#
- 1...Qxc1
- 2.Sc6#
- 1...Qxb2
- 2.Sc6#
- 2.Qc5#
- 1...Rxf1
- 2.Sd5#
- 1...Bxb7
- 2.Qc7#
- 1...Qc3
- 2.Sc6#
- 1...Qf2
- 2.Se2#
- 1...Rf2
- 2.Sd5#
- 1...Rf3
- 2.Sd5#
- 1...Rf4
- 2.Sd5#
- 2.Sg8#
- 1...Rf5
- 2.Sd5#
- 2.Sg8#
- 1...Qb4
- 2.Sc6#
- 1...Qa5
- 2.Sc6#
- 1...Qc2
- 2.Sxc2#
- 2.Sc6#
- 1...Rf6
- 2.Sxg6#
- 2.Qc5#
- 1...Qxd4+!
- threat
- 1.Rf5+?
- Keys
- 1.Ba3!
- threat
- 2.Bd6#
- 1...Rxe7+
- 2.Rxe7#
- 1...Rxf1
- 2.Sd5#
- 1...Qc3
- 2.Sc6#
- 1...Qb2
- 2.Sc6#
- 1...Qf2
- 2.Se2#
- 1...Rf2
- 2.Sd5#
- 1...Rf3
- 2.Sd5#
- 1...Rf4
- 2.Sd5#
- 2.Sg8#
- 1...Rf5
- 2.Sd5#
- 2.Sg8#
- 1...Qb4
- 2.Sc6#
- 1...Rf6
- 2.Sxg6#
- threat
- 1.Ba3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 5
- Sets
- Q(b);N_PINS(E),P_PINS(H)::B(C)+S(E),DCHECK
- Q(b);N_PINS(E),P_PINS(H)::S(E)
- Q(b);N_PINS(E),P_PINS(H),XB(C)::S(E)
- Q(b);N_PINS(E),P_PINS(H)::B(C)+S(E)
- Q(b);CHECK,OGATE,P_PINS(H),P_SPINQ(b),XS(E)::B(C),XQ(b)
- R(g);XR(B)::R(I)+S(H)
- R(g);::R(I)+S(H)
- R(g);::R(I)+S(H),DCHECK,XP(f)
- R(g);CHECK,OGATE,P_SPINR(g),XS(H)::R(I),XR(g)
- Tries
- Try
- R(B);CHECK
- Vars
- R(g);XR(B)::R(I)+S(H)
- Refutation
- P(f);XR(B)
- Try
- R(B);XR(g)
- Threat
- DUALS(4)
- Vars
- Q(b);N_PINS(E),XB(C)::S(E)
- Q(b);N_PINS(E)::S(E)
- Refutation
- B(h);XB(F)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(g);CHECK,OGATE,P_SPINR(g),XS(H)::R(I),XR(g)
- Q(b);N_PINS(E),P_PINS(H),XQ(A)::B(C)+S(E),DCHECK
- R(g);XR(B)::R(I)+S(H)
- B(h);XB(F)::QAB(A)
- Q(b);N_PINS(E),P_PINS(H)::S(E)
- Q(b);N_PINS(E),P_PINS(H)::B(C)+S(E)
- R(g);::R(I)+S(H)
- Q(b);N_PINS(E),P_PINS(H)::B(C)+S(E),DCHECK
- Refutation
- Q(b);CHECK,P_PINS(H),P_SPINQ(b),XS(E)
- Try
- Actual
- B(C);
- Threat
- B(C)
- Vars
- R(g);CHECK,OGATE,P_SPINR(g),XS(H)::R(I),XR(g)
- R(g);XR(B)::R(I)+S(H)
- Q(b);N_PINS(E),P_PINS(H)::S(E)
- Q(b);N_PINS(E),P_PINS(H)::QAB(A)+S(E)
- R(g);::R(I)+S(H)
- Q(b);N_PINS(E),P_PINS(H)::QAB(A)+S(E),DCHECK
- R(g);::R(I)+S(H),DCHECK,XP(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).