MESON Chess Problem Database
Problem Display
PID: 176322 (7r/1N2PPBp/R1Qp1K2/1p4p1/p2k4/b4prb/3P4/2N4B w - - 0 1)
Haring, Jacobus
Schach-Echo, 1972
#2
10 + 11
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rg4
- 2.Kf5#
- 2.Ke6#
- 1...Bf1
- 2.Kf5#
- 2.Ke6#
- 1...Bg2
- 2.Kf5#
- 2.Ke6#
- 1...Bg4
- 2.Kxg5#
- 1...Bf5
- 2.Kxf5#
- 1...Be6
- 2.Kxe6#
- 1...f2
- 2.Qe4#
- 2.Qd5#
- 1...g4
- 2.Kf5#
- 2.Kg5#
- 2.Ke6#
- 1...h5
- 2.Kg6#
- 1...h6
- 2.Kg6#
- 1...Rg4
- Tries
- 1.Se2+?
- 1...fxe2
- 2.Qe4#
- 2.Qd5#
- 1...Kd3!
- 1...fxe2
- 1.Bxf3?
- threat
- 2.Qe4#
- 2.Qd5#
- 2.Qc3#
- 1...Bc5
- 2.Qe4#
- 2.Qd5#
- 1...Rg4
- 2.Kf5#
- 2.Ke6#
- 2.Qd5#
- 2.Qc3#
- 1...Rc8
- 2.Qe4#
- 2.Qd5#
- 1...Bb2
- 2.Qe4#
- 2.Qd5#
- 1...Bb4
- 2.Qe4#
- 2.Qd5#
- 1...Bf5
- 2.Kxf5#
- 2.Qd5#
- 2.Qc3#
- 1...Be6
- 2.Kxe6#
- 2.Qe4#
- 2.Qc3#
- 1...b4
- 2.Qe4#
- 2.Qd5#
- 1...d5
- 2.Qxd5#
- 2.Qc3#
- 1...Rxf3+!
- threat
- 1.Qc2?
- threat
- 2.Qd3#
- 1...Kd5
- 2.Qd3#
- 1...Bxc1
- 2.Rxd6#
- 1...Bf1
- 2.Ke6#
- 1...f2
- 2.Se2#
- 2.Qe4#
- 1...Bf5!
- threat
- 1.Qc3+?
- 1...Kd5
- 2.Qd3#
- 1...Ke4!
- 1...Kd5
- 1.Qxd6+?
- 1...Kc4
- 2.Sa5#
- 1...Ke4
- 2.Qe5#
- 1...Bxd6!
- 1...Kc4
- 1.e8Q?
- threat
- 2.Ke7#
- 2.Qce4#
- 2.Qe3#
- 2.Qee4#
- 1...Bxc1
- 2.Qce4#
- 2.Qe3#
- 2.Qee4#
- 1...Bc5
- 2.Qce4#
- 2.Qee4#
- 1...Rg4
- 2.Kf5#
- 2.Ke6#
- 2.Ke7#
- 2.Qe3#
- 1...Rg8
- 2.Qce4#
- 2.Qe3#
- 2.Qee4#
- 1...Bf5
- 2.Kxf5#
- 2.Ke7#
- 2.Qe3#
- 1...Be6
- 2.Kxe6#
- 2.Ke7#
- 1...f2
- 2.Ke7#
- 2.Qce4#
- 2.Qd5#
- 2.Qee4#
- 1...d5
- 2.Qc3#
- 2.Qe3#
- 2.Qe5#
- 1...Rxe8!
- threat
- 1.e8R?
- threat
- 2.Ke7#
- 2.Re4#
- 2.Qe4#
- 1...Bxc1
- 2.Qe4#
- 1...Bc5
- 2.Re4#
- 2.Qe4#
- 1...Rg4
- 2.Kf5#
- 2.Ke6#
- 2.Ke7#
- 1...Rg8
- 2.Re4#
- 2.Qe4#
- 1...Bf5
- 2.Kxf5#
- 2.Ke7#
- 1...Be6
- 2.Kxe6#
- 2.Ke7#
- 1...d5
- 2.Qc3#
- 1...Rxe8!
- threat
- 1.Se2+?
- Keys
- 1.Qxb5!
- threat
- 2.Qd3#
- 1...Ke4
- 2.Qc4#
- 1...Bxc1
- 2.Rxa4#
- 1...Bf1
- 2.Kf5#
- 1...Bf5
- 2.Kxf5#
- 1...f2
- 2.Se2#
- 2.Qd5#
- threat
- 1.Qxb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 4
- Sets
- B(d);::B(J)+K(F),XP(h)
- B(d);::B(J)+K(F),XB(d)
- P(j);::B(J)+K(F)
- Tries
- Try
- S(A);CHECK
- Refutation
- K(f);P-FLIGHT
- Try
- B(B);XP(b)
- Threat
- DUALS(3)
- Refutation
- R(c);CHECK,XB(B)
- Try
- Q(E);
- Threat
- QAR1(E)
- Vars
- K(f);P-FLIGHT,P_SPINP(b)::QAR2(E)
- B(a);N_GUARD,XS(A)::R(D),XP(i)
- B(d);::B(J)+K(F)
- Refutation
- B(d);
- Try
- Q(E);CHECK
- Vars
- K(f);P-FLIGHT,P_SPINP(b)::QAR2(E)
- Refutation
- K(f);P-FLIGHT,P_SPINP(b)
- Try
- Q(E);CHECK,XP(i)
- Vars
- K(f);P-FLIGHT::S(G)
- K(f);P-FLIGHT,P_SPINP(b)::QAR1(E)
- Refutation
- B(a);XQ(E)
- Try
- P(H);
- Threat
- DUALS(4)
- Refutation
- R(k);XQ(H)
- Try
- P(H);
- Threat
- DUALS(3)
- Vars
- B(a);XS(A)::QAR1(E)
- P(i);SBLOCK::QAB1(E)
- Refutation
- R(k);XR(H)
- Try
- Actual
- Q(E);XP(g)
- Threat
- QAR1(E)
- Vars
- K(f);P-FLIGHT,P_SPINP(b)::QAR2(E)
- B(a);N_GUARD,XS(A)::R(D),XP(e)
- B(d);::B(J)+K(F)
- B(d);::B(J)+K(F),XB(d)
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).