MESON Chess Problem Database
Problem Display
PID: 65396 (8/1pPQ1Rn1/B2br3/2p2P2/P3k1N1/2pR3N/p6P/Kb4B1 w - - 0 1)
Ellerman, Arnoldo
1st Prize, Il Problema, 1934
#2
12 + 9
| 3188 | Dutch Solving Championship | 2006 |
SOLUTION
- SOUND
- Sets
- 1...Re5
- 2.Sgf2#
- 2.Sf6#
- 1...Bxd3
- 2.Bxb7#
- 1...Bxh2
- 2.Re3#
- 2.Qd5#
- 1...Bg3
- 2.Re3#
- 2.Qd5#
- 1...Bf4
- 2.Shf2#
- 2.Qd5#
- 1...Be5
- 2.Sgf2#
- 2.Re3#
- 2.Qd5#
- 1...Bxc7
- 2.Re3#
- 2.Qd5#
- 1...Be7
- 2.Re3#
- 2.Qd5#
- 1...Bf8
- 2.Re3#
- 2.Qd5#
- 1...b6
- 2.Qc6#
- 1...Re5
- Tries
- 1.Re3+?
- 1...Kd4
- 2.Re5#
- 1...Kd5!
- 1...Kd4
- 1.Qb5?
- threat
- 2.Bxb7#
- 2.Qc4#
- 2.Qxb7#
- 1...Bxd3
- 2.Bxb7#
- 2.Qxd3#
- 2.Qxb7#
- 1...Bxh2
- 2.Qc4#
- 1...Bxc7
- 2.Qc4#
- 1...Sxf5
- 2.Bxb7#
- 2.Qxb7#
- 1...bxa6
- 2.Qc4#
- 1...c4
- 2.Sgf2#
- 2.Qxc4#
- 2.Qd5#
- 1...Re5
- 2.Sgf2#
- 2.Qc4#
- 1...Bg3
- 2.Qc4#
- 1...Bf4
- 2.Shf2#
- 2.Qc4#
- 1...Be5
- 2.Sgf2#
- 1...Be7
- 2.Qc4#
- 1...Bf8
- 2.Qc4#
- 1...b6
- 2.Bb7#
- 2.Qc4#
- 2.Qc6#
- 1...Rf6!
- threat
- 1.Qxe6+?
- 1...Be5
- 2.Sgf2#
- 2.Sf6#
- 2.Qd5#
- 2.Qxe5#
- 1...Sxe6!
- 1...Be5
- 1.Qxd6?
- threat
- 2.Shf2#
- 2.Sg5#
- 2.Sgf2#
- 2.Bxb7#
- 2.Re3#
- 2.Qf4#
- 2.Qd5#
- 1...Bxd3
- 2.Sg5#
- 2.Bxb7#
- 2.Qxd3#
- 1...Sxf5
- 2.Shf2#
- 2.Sg5#
- 2.Sgf2#
- 2.Bxb7#
- 2.Qf4#
- 2.Qd5#
- 2.Qxe6#
- 1...bxa6
- 2.Shf2#
- 2.Sg5#
- 2.Sgf2#
- 2.Re3#
- 2.Qd5#
- 1...Rf6
- 2.Qf4#
- 2.Qe5#
- 2.Qd5#
- 1...Re5
- 2.Sgf2#
- 2.Re3#
- 2.Qxe5#
- 1...Rg6
- 2.Shf2#
- 2.Sgf2#
- 2.Bxb7#
- 2.Re3#
- 2.Qf4#
- 2.Qe5#
- 2.Qd5#
- 1...Sh5
- 2.Shf2#
- 2.Sg5#
- 2.Sgf2#
- 2.Bxb7#
- 2.Re3#
- 2.Qd5#
- 2.Qxe6#
- 1...c4
- 2.Shf2#
- 2.Sg5#
- 2.Sgf2#
- 2.Bxb7#
- 2.Re3#
- 2.Qd4#
- 2.Qd5#
- 1...b5
- 2.Shf2#
- 2.Sg5#
- 2.Sgf2#
- 2.Bb7#
- 2.Re3#
- 2.Qd5#
- 1...b6
- 2.Shf2#
- 2.Sg5#
- 2.Sgf2#
- 2.Bb7#
- 2.Re3#
- 2.Qf4#
- 2.Qd5#
- 1...Rxd6!
- threat
- 1.fxe6?
- threat
- 2.Shf2#
- 2.Sg5#
- 1...Bxd3
- 2.Bxb7#
- 1...Sxe6
- 2.Shf2#
- 1...bxa6
- 2.Shf2#
- 1...c4
- 2.Shf2#
- 2.Rd4#
- 1...b5
- 2.Shf2#
- 1...Bg3
- 2.Sg5#
- 2.Bxb7#
- 2.Re3#
- 2.Qd5#
- 1...Bf4
- 2.Shf2#
- 2.Bxb7#
- 2.Rxf4#
- 2.Qd5#
- 1...Be7
- 2.Shf2#
- 2.Bxb7#
- 2.Re3#
- 2.Rf4#
- 2.Qd5#
- 1...Sf5!
- threat
- 1.Re3+?
- Keys
- 1.Rxc3!
- threat
- 2.Bxb7#
- 1...Kd5
- 2.Bxb7#
- 1...Bxh2
- 2.Re3#
- 1...Bxc7
- 2.Re3#
- 1...bxa6
- 2.Qc6#
- 1...Re5
- 2.Sf6#
- 1...Bg3
- 2.Re3#
- 1...Bf4
- 2.Shf2#
- 1...Be5
- 2.Sgf2#
- 1...Be7
- 2.Re3#
- 1...Bf8
- 2.Re3#
- 1...b5
- 2.Bb7#
- 2.Qc6#
- 1...b6
- 2.Bb7#
- 2.Qc6#
- threat
- 1.Rxc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 10
- REMOVED MATES = 2
- Sets
- B(a);SBLOCK,XR(D)::B(I),XP(h)
- P(h);N_GUARD::QAB(K)
- Tries
- Try
- R(D);CHECK
- Vars
- K(d);OGATE,P-FLIGHT,P_SPINB(f)::B(B)+R(D)
- Refutation
- K(d);P_SPINB(f),S_FLIGHT
- Try
- Q(K);
- Threat
- DUALS(3)
- Vars
- B(f);XP(C)::QAR2(K)
- B(f);XP(J)::QAR2(K)
- P(h);XB(I)::QAR2(K)
- B(f);::QAR2(K)
- B(f);SBLOCK::S(G)
- Refutation
- R(g);
- Try
- Q(K);CHECK,XR(g)
- Refutation
- S(i);XQ(K)
- Try
- Q(K);XB(f)
- Threat
- DUALS(7)
- Refutation
- R(g);XQ(K)
- Try
- P(H);XR(g)
- Threat
- DUALS(2)
- Vars
- B(a);SBLOCK,XR(D)::B(I),XP(h)
- S(i);XP(H)::S(E)
- P(h);XB(I)::S(E)
- P(h);::S(E)
- Refutation
- S(i);
- Try
- Actual
- R(D);XP(c)
- Threat
- B(I),XP(h)
- Vars
- K(d);P_SPINB(f),S_FLIGHT::B(I),XP(h)
- B(f);XP(C)::R1(D)
- B(f);XP(J)::R1(D)
- P(h);N_GUARD,XB(I)::QAB(K)
- R(g);N_GUARD,SBLOCK::S(G)
- B(f);::R1(D)
- B(f);SBLOCK::S(E)
- B(f);P_PINR(D),SBLOCK::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).