MESON Chess Problem Database
Problem Display
PID: 120722 (8/pK1R4/1n1B4/p2k1P2/Rb3Qp1/3p4/1p2Pp2/1r1n4 w - - 0 1)
Scheel, Johan
Otto Fuss Ty., 1918-1919
#2
7 + 11
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Be1
- 2.Rd4#
- 2.Qe5#
- 2.Qd4#
- 2.Qe4#
- 2.e4#
- 1...Bd2
- 2.Rd4#
- 2.Qe5#
- 2.Qd4#
- 2.Qe4#
- 2.e4#
- 1...Ba3
- 2.Rd4#
- 2.Qe5#
- 2.Qd4#
- 2.Qe4#
- 2.e4#
- 1...Bc3
- 2.Qe4#
- 2.e4#
- 1...Bc5
- 2.Qe5#
- 2.Qe4#
- 2.e4#
- 1...Bxd6
- 2.Rxa5#
- 2.Qxd6#
- 2.Qd4#
- 1...Sxa4
- 2.Bxb4#
- 1...Sa8
- 2.Bxb4#
- 1...Be1
- Tries
- 1.Bc5+?
- 1...Sxd7
- 2.Qd4#
- 1...Kxc5!
- 1...Sxd7
- 1.Be5+?
- 1...Bd6
- 2.Rxa5#
- 2.Qd4#
- 1...Sxd7
- 2.Qd4#
- 1...Kc5!
- 1...Bd6
- 1.Be7+?
- 1...Bd6
- 2.Rxa5#
- 2.Qxd6#
- 2.Qd4#
- 1...Sxd7!
- 1...Bd6
- 1.Bf8+?
- 1...Bd6
- 2.Rxa5#
- 2.Qxd6#
- 2.Qd4#
- 1...Sxd7!
- 1...Bd6
- 1.Rxb4?
- threat
- 2.Rd4#
- 2.Rb5#
- 2.Qe5#
- 2.Qd4#
- 2.Qe4#
- 2.e4#
- 1...Sxd7
- 2.Rd4#
- 2.Qd4#
- 2.e4#
- 1...dxe2
- 2.Rd4#
- 2.Rb5#
- 2.Qd2#
- 2.Qe5#
- 2.Qd4#
- 2.Qe4#
- 1...Rc1
- 2.Rd4#
- 2.Qe5#
- 2.Qd4#
- 2.Qe4#
- 2.e4#
- 1...Sc3
- 2.Rd4#
- 2.Qe5#
- 2.Qd4#
- 1...Se3
- 2.Rd4#
- 2.Rb5#
- 2.Qe5#
- 2.Qd4#
- 2.Qe4#
- 1...Sa4
- 2.Be7#
- 2.Bf8#
- 2.Rd4#
- 2.Qe5#
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 2.e4#
- 1...Sc4
- 2.Rb5#
- 2.Qxc4#
- 1...a6
- 2.Rd4#
- 2.Qe5#
- 2.Qd4#
- 2.Qe4#
- 2.e4#
- 1...axb4!
- threat
- 1.Rxa5+?
- 1...Bc5
- 2.Rxc5#
- 1...Bxa5!
- 1...Bc5
- 1.Qe3?
- threat
- 2.Qxd3#
- 1...Kc4
- 2.Qxd3#
- 1...Bxd6
- 2.Qd4#
- 1...dxe2
- 2.Qd3#
- 1...Bc3
- 2.Qc5#
- 2.Qe4#
- 2.Qe6#
- 1...Bc5
- 2.Qxc5#
- 2.Qe4#
- 2.Qe5#
- 2.Qe6#
- 1...d2
- 2.Qd3#
- 1...Sxe3!
- threat
- 1.Qg3?
- threat
- 2.Qxd3#
- 1...Kc4
- 2.Qxd3#
- 1...Kd4
- 2.Qxd3#
- 1...Ke4
- 2.Qe5#
- 2.Qxd3#
- 1...Bxd6
- 2.Qxd6#
- 1...dxe2
- 2.Qd3#
- 1...Bc3
- 2.Qg2#
- 2.e4#
- 1...Bc5
- 2.Qe5#
- 2.Qg2#
- 2.e4#
- 1...d2
- 2.Qd3#
- 1...Se3!
- threat
- 1.Qf3+?
- 1...Kc4
- 2.Qxd3#
- 1...Kd4
- 2.Qxd3#
- 1...gxf3!
- 1...Kc4
- 1.Qxb4?
- threat
- 2.Rxa5#
- 2.Qxa5#
- 2.Qc5#
- 2.Qd4#
- 2.Qe4#
- 2.Qb5#
- 2.e4#
- 1...Sxa4
- 2.Bh2#
- 2.Bg3#
- 2.Bf4#
- 2.Bc7#
- 2.Bb8#
- 2.e4#
- 1...Sxd7
- 2.Qd4#
- 2.e4#
- 1...dxe2
- 2.Rxa5#
- 2.Qd2#
- 2.Qxa5#
- 2.Qc5#
- 2.Qd4#
- 2.Qe4#
- 2.Qb5#
- 1...Sc4
- 2.Qxc4#
- 1...Ra1
- 2.Qxa5#
- 2.Qc5#
- 2.Qd4#
- 2.Qe4#
- 2.Qb5#
- 2.e4#
- 1...Rc1
- 2.Qd4#
- 2.Qe4#
- 2.e4#
- 1...Sc3
- 2.Qc5#
- 2.Qd4#
- 1...Se3
- 2.Rxa5#
- 2.Qxa5#
- 2.Qc5#
- 2.Qd4#
- 2.Qe4#
- 2.Qb5#
- 1...a6
- 2.Rxa5#
- 2.Qxa5#
- 2.Qc5#
- 2.Qd4#
- 2.Qe4#
- 2.e4#
- 1...axb4!
- threat
- 1.exd3?
- threat
- 2.Qe5#
- 2.Qe4#
- 1...Bxd6
- 2.Rxa5#
- 2.Qxd6#
- 2.Qd4#
- 1...Bc3
- 2.Qe4#
- 1...Sc3
- 2.Qe5#
- 1...Sc4
- 2.Qxc4#
- 2.Qe4#
- 2.dxc4#
- 1...Sxd7!
- threat
- 1.e3?
- threat
- 2.Qd4#
- 1...Bc3
- 2.Qe4#
- 2.e4#
- 1...Bc5
- 2.Qe5#
- 2.Qe4#
- 2.e4#
- 1...Sxe3!
- threat
- 1.Bc5+?
- Keys
- 1.Qd2!
- threat
- 2.Qxd3#
- 1...Kc4
- 2.Qxd3#
- 1...Kd4
- 2.Qxd3#
- 1...Ke4
- 2.Qxd3#
- 1...Bxd2
- 2.e4#
- 1...Bxd6
- 2.Qxa5#
- 1...Bc3
- 2.e4#
- 1...Bc5
- 2.e4#
- threat
- 1.Qd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 2
- Sets
- S(j);N_GUARD,XR(B)::R(G)+B(E),XB(f)
- S(j);N_GUARD::R(G)+B(E),XB(f)
- Tries
- Try
- B(E);CHECK
- Vars
- S(j);XR(G)::QAR1(C)
- Refutation
- K(i);P-FLIGHT,XB(E)
- Try
- B(E);CHECK
- Vars
- S(j);XR(G)::QAR1(C)
- Refutation
- K(i);P-FLIGHT
- Try
- B(E);CHECK
- Refutation
- S(j);XR(G)
- Try
- B(E);CHECK
- Refutation
- S(j);XR(G)
- Try
- R(B);XB(f)
- Threat
- DUALS(6)
- Refutation
- P(h);XR(B)
- Try
- R(B);CHECK,XP(h)
- Vars
- B(f);N_GUARD,P_SPINB(f)::R1(B),XB(f)
- Refutation
- B(f);XR(B)
- Try
- Q(C);
- Threat
- QAR2(C),XP(e)
- Vars
- K(i);P_SPINB(f),S_FLIGHT::QAB1(C),XP(e)
- B(f);P_SPINB(f),XB(E)::QAR1(C)
- P(e);XP(A)::QAR2(C)
- P(e);::QAR2(C)
- Refutation
- S(b);XQ(C)
- Try
- Q(C);
- Threat
- QAR2(C),XP(e)
- Vars
- K(i);P_SPINB(f),S_FLIGHT::QAB1(C),XP(e)
- K(i);P-FLIGHT,P_SPINB(f)::QAR1(C),XP(e)
- B(f);OGATE,P_SPINB(f),XB(E)::QAR1(C),XB(f)
- P(e);XP(A)::QAR2(C)
- P(e);::QAR2(C)
- Refutation
- S(b);
- Try
- Q(C);CHECK
- Vars
- K(i);P_SPINB(f),S_FLIGHT::QAB1(C),XP(e)
- K(i);P-FLIGHT,P_SPINB(f)::QAR1(C),XP(e)
- Refutation
- P(g);XQ(C)
- Try
- Q(C);XB(f)
- Threat
- DUALS(7)
- Vars
- S(j);N_GUARD::QAB1(C),XS(j)
- Refutation
- P(h);XQ(C)
- Try
- P(A);XP(e)
- Threat
- DUALS(2)
- Vars
- B(f);::QAB1(C)
- S(b);::QAR1(C)
- Refutation
- S(j);XR(G)
- Try
- P(A);
- Threat
- QAR1(C)
- Refutation
- S(b);XP(A)
- Try
- Actual
- Q(C);P_PINP(e)
- Threat
- QAR2(C),XP(e)
- Vars
- K(i);N_SPINP(e),P_SPINB(f),S_FLIGHT::QAB1(C),XP(e)
- K(i);P-FLIGHT,P_SPINB(f)::QAR1(C),XP(e)
- B(f);N_SPINP(e),XQ(C)::P(A)
- B(f);OGATE,P_SPINB(f),XB(E)::QAR(C),XP(h)
- B(f);::P(A)
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).