MESON Chess Problem Database
Problem Display
PID: 64517 (5N2/1p2p2n/1Rb1pkBP/1Q4r1/1K5B/P3P3/8/8 w - - 0 1)
Ellerman, Arnoldo
Good Companions (March), 1919
#2
9 + 7
| 3132 | The Good Companion Two-Mover | 1922 |
SOLUTION
- SOUND
- Sets
- 1...Bh1
- 2.Rxe6#
- 2.Qf5#
- 1...Bg2
- 2.Rxe6#
- 2.Qf5#
- 1...Bf3
- 2.Rxe6#
- 2.Qf5#
- 1...Be4
- 2.Rxe6#
- 1...Bxb5
- 2.Rxe6#
- 1...Bd7
- 2.Qf5#
- 1...Be8
- 2.Rxe6#
- 2.Qf5#
- 1...Sxf8
- 2.Qxg5#
- 1...e5
- 2.Qf1#
- 1...Bh1
- Tries
- 1.Kb3?
- 1...Bxb5
- 2.Rxe6#
- 1...Sxf8
- 2.Qxg5#
- 1...Bh1
- 2.Rxe6#
- 2.Qf5#
- 1...Bg2
- 2.Rxe6#
- 2.Qf5#
- 1...Bf3
- 2.Rxe6#
- 2.Qf5#
- 1...Be4
- 2.Rxe6#
- 1...Bd7
- 2.Qf5#
- 1...Be8
- 2.Rxe6#
- 2.Qf5#
- 1...e5
- 2.Qf1#
- 1...Bd5+!
- 1...Bxb5
- 1.Kc3?
- 1...Bxb5
- 2.Rxe6#
- 1...Sxf8
- 2.Qxg5#
- 1...Bh1
- 2.Rxe6#
- 2.Qf5#
- 1...Bg2
- 2.Rxe6#
- 2.Qf5#
- 1...Bf3
- 2.Rxe6#
- 2.Qf5#
- 1...Be4
- 2.Rxe6#
- 1...Bd7
- 2.Qf5#
- 1...Be8
- 2.Rxe6#
- 2.Qf5#
- 1...e5
- 2.Qf1#
- 1...Bd5!
- 1...Bxb5
- 1.Sd7+?
- 1...Bxd7
- 2.Qf5#
- 1...Kxg6!
- 1...Bxd7
- 1.Rxc6?
- threat
- 2.Rxe6#
- 2.Qf5#
- 1...Sxf8
- 2.Qf5#
- 2.Qxg5#
- 1...bxc6!
- threat
- 1.Qf1+?
- 1...Bf3
- 2.Rxe6#
- 2.Qa1#
- 1...Ke5!
- 1...Bf3
- 1.Qd3?
- 1...Ke5
- 2.Qd4#
- 1...Bh1
- 2.Sd7#
- 2.Rxe6#
- 2.Qf5#
- 2.Qc3#
- 2.Qd4#
- 1...Bg2
- 2.Sd7#
- 2.Rxe6#
- 2.Qf5#
- 2.Qc3#
- 2.Qd4#
- 1...Bf3
- 2.Sd7#
- 2.Rxe6#
- 2.Qf5#
- 2.Qc3#
- 2.Qd4#
- 1...Ba4
- 2.Rxe6#
- 2.Qf5#
- 2.Qc3#
- 2.Qd4#
- 1...Be4
- 2.Rxe6#
- 2.Qc3#
- 2.Qd4#
- 1...Bb5
- 2.Rxe6#
- 2.Qf5#
- 2.Qc3#
- 2.Qd4#
- 1...Bd5
- 2.Sd7#
- 2.Qf5#
- 2.Qc3#
- 2.Qd4#
- 1...Bd7
- 2.Sxd7#
- 2.Qf5#
- 2.Qc3#
- 2.Qd4#
- 1...Be8
- 2.Rxe6#
- 2.Qf5#
- 2.Qc3#
- 2.Qd4#
- 1...e5
- 2.Qf1#
- 2.Qf5#
- 1...Sxf8!
- 1...Ke5
- 1.Qc4?
- threat
- 2.Qxe6#
- 2.Qf4#
- 1...Ke5
- 2.Qxe6#
- 2.Qd4#
- 1...Be4
- 2.Rxe6#
- 2.Qxe6#
- 2.Qc3#
- 2.Qd4#
- 1...Bd5
- 2.Qc3#
- 2.Qd4#
- 2.Qf4#
- 1...Bd7
- 2.Qc3#
- 2.Qd4#
- 2.Qf4#
- 1...e5
- 2.Qf1#
- 2.Qe6#
- 2.Qf7#
- 1...Sxf8!
- threat
- 1.Qc5?
- 1...Sxf8
- 2.Qxg5#
- 1...Bd5
- 2.Qd4#
- 2.Qc3#
- 1...Bh1
- 2.Rxe6#
- 2.Qd4#
- 2.Qc3#
- 2.Qf5#
- 1...Bg2
- 2.Rxe6#
- 2.Qd4#
- 2.Qc3#
- 2.Qf5#
- 1...Bf3
- 2.Rxe6#
- 2.Qd4#
- 2.Qc3#
- 2.Qf5#
- 1...Ba4
- 2.Rxe6#
- 2.Qd4#
- 2.Qc3#
- 2.Qf5#
- 1...Be4
- 2.Rxe6#
- 2.Qd4#
- 2.Qc3#
- 1...Bb5
- 2.Rxe6#
- 2.Qd4#
- 2.Qc3#
- 2.Qf5#
- 1...Bd7
- 2.Qd4#
- 2.Qc3#
- 2.Qf5#
- 1...Be8
- 2.Rxe6#
- 2.Qd4#
- 2.Qc3#
- 2.Qf5#
- 1...e5!
- 1...Sxf8
- 1.a4?
- 1...Bxb5
- 2.Rxe6#
- 1...Sxf8
- 2.Qxg5#
- 1...e5
- 2.Qf1#
- 1...Bh1
- 2.Rxe6#
- 2.Qf5#
- 1...Bg2
- 2.Rxe6#
- 2.Qf5#
- 1...Bf3
- 2.Rxe6#
- 2.Qf5#
- 1...Be4
- 2.Rxe6#
- 1...Bd7
- 2.Qf5#
- 1...Be8
- 2.Rxe6#
- 2.Qf5#
- 1...Bd5!
- 1...Bxb5
- 1.e4?
- threat
- 2.e5#
- 1...Bxe4
- 2.Rxe6#
- 1...Bxb5
- 2.Rxe6#
- 1...Sxf8
- 2.Qxg5#
- 1...e5
- 2.Qf1#
- 1...Bd5!
- threat
- 1.Kb3?
- Keys
- 1.Ka5!
- 1...Bxb5
- 2.Rxe6#
- 1...Sxf8
- 2.Qxg5#
- 1...Bd5
- 2.Qb2#
- 1...Bh1
- 2.Rxe6#
- 2.Qf5#
- 1...Bg2
- 2.Rxe6#
- 2.Qf5#
- 1...Bf3
- 2.Rxe6#
- 2.Qf5#
- 1...Be4
- 2.Rxe6#
- 1...Bd7
- 2.Qf5#
- 1...Be8
- 2.Rxe6#
- 2.Qf5#
- 1...e5
- 2.Qf1#
- 1...Bxb5
- 1.Ka5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(b);OGATE,P_SPINP(c)::R1(F),XP(c)
- B(b);OGATE,P_SPINP(c),XQ(E)::R1(F),XP(c)
- B(b);P_SPINP(c)::QAR1(E)
- S(g);N_GUARD,XS(I)::QAB1(E),XR(a)
- P(c);P_SPINB(b),SBLOCK::QAR(E)
- Tries
- Try
- K(C);P-FLIGHT
- Vars
- B(b);OGATE,P_SPINP(c),XQ(E)::R1(F),XP(c)
- S(g);N_GUARD,XS(I)::QAB1(E),XR(a)
- B(b);OGATE,P_SPINP(c)::R1(F),XP(c)
- B(b);P_SPINP(c)::QAR1(E)
- P(c);P_SPINB(b),SBLOCK::QAR(E)
- Refutation
- B(b);CHECK,P_SPINP(c)
- Try
- K(C);S_FLIGHT
- Vars
- B(b);OGATE,P_SPINP(c),XQ(E)::R1(F),XP(c)
- S(g);N_GUARD,XS(I)::QAB1(E),XR(a)
- B(b);OGATE,P_SPINP(c)::R1(F),XP(c)
- B(b);P_SPINP(c)::QAR1(E)
- P(c);P_SPINB(b),SBLOCK::QAR(E)
- Refutation
- B(b);P_SPINP(c)
- Try
- S(I);CHECK
- Vars
- B(b);P_SPINP(c),XS(I)::QAR1(E)
- Refutation
- K(d);N_SPINR(a),P-FLIGHT,XB(G)
- Try
- R(F);P_PINP(c),XB(b)
- Threat
- DUALS(2)
- Refutation
- P(e);N_SPINP(c),XR(F)
- Try
- Q(E);CHECK
- Refutation
- K(d);N_SPINR(a),S_FLIGHT
- Try
- Q(E);
- Vars
- K(d);N_SPINR(a),S_FLIGHT::QAB1(E)
- Refutation
- S(g);XS(I)
- Try
- Q(E);
- Threat
- DUALS(2)
- Refutation
- S(g);XS(I)
- Try
- Q(E);
- Vars
- S(g);N_GUARD,XS(I)::QAB1(E),XR(a)
- Refutation
- P(c);P_SPINB(b)
- Try
- P(A);
- Vars
- B(b);OGATE,P_SPINP(c),XQ(E)::R1(F),XP(c)
- S(g);N_GUARD,XS(I)::QAB1(E),XR(a)
- P(c);P_SPINB(b),SBLOCK::QAR(E)
- B(b);OGATE,P_SPINP(c)::R1(F),XP(c)
- B(b);P_SPINP(c)::QAR1(E)
- Refutation
- B(b);P_SPINP(c)
- Try
- P(B);
- Threat
- P(B)
- Vars
- B(b);OGATE,P_SPINP(c),XP(B)::R1(F),XP(c)
- B(b);OGATE,P_SPINP(c),XQ(E)::R1(F),XP(c)
- S(g);N_GUARD,XS(I)::QAB1(E),XR(a)
- P(c);P_SPINB(b),SBLOCK::QAR(E)
- Refutation
- B(b);P_SPINP(c)
- Try
- Actual
- K(C);P_SPINQ(E),S_FLIGHT
- Vars
- B(b);OGATE,P_SPINP(c),XQ(E)::R1(F),XP(c)
- S(g);N_GUARD,XS(I)::QAB1(E),XR(a)
- B(b);N_PINQ(E),P_SPINP(c)::QAB(E)
- B(b);OGATE,P_SPINP(c)::R1(F),XP(c)
- B(b);P_SPINP(c)::QAR1(E)
- P(c);N_PINQ(E),P_SPINB(b),SBLOCK::QAR(E)
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).