MESON Chess Problem Database
Problem Display
PID: 6412 (B7/3K3p/1P1B4/1N1Pp2r/R2qk2N/4p3/2p5/1n3Q2 w - - 0 1)
Mansfield, Comins
3rd Prize, L'Echiquier, 1929
#2
9 + 8
| 3202 | Complete Mansfield/I | 1996 |
SOLUTION
- SOUND
- Sets
- 1...Qb4
- 2.Rxb4#
- 1...Qc4
- 2.Rxc4#
- 2.Qxc4#
- 1...Rf5
- 2.Qxf5#
- 1...Rh6
- 2.Qf5#
- 1...Sd2
- 2.Sc3#
- 1...Sa3
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...e2
- 2.Qf3#
- 1...Qb4
- Tries
- 1.Ba3?
- threat
- 2.Sd6#
- 2.d6#
- 1...e2
- 2.Qf3#
- 1...c1Q
- 2.Sd6#
- 1...c1R
- 2.Sd6#
- 1...Qb4
- 2.Rxb4#
- 2.d6#
- 1...Qc4
- 2.Rxc4#
- 2.Qxc4#
- 2.d6#
- 1...Rh6
- 2.Qf5#
- 2.d6#
- 1...Sc3
- 2.Sxc3#
- 2.Sd6#
- 1...Qxa4!
- threat
- 1.Bc5?
- threat
- 2.Sd6#
- 2.d6#
- 1...e2
- 2.Qf3#
- 1...Rh6
- 2.Qf5#
- 2.d6#
- 1...Sc3
- 2.Sxc3#
- 2.Sd6#
- 1...Qxa4!
- threat
- 1.Bc7?
- threat
- 2.Sd6#
- 2.d6#
- 1...e2
- 2.Qf3#
- 1...c1Q
- 2.Sd6#
- 1...c1R
- 2.Sd6#
- 1...Qb4
- 2.Rxb4#
- 2.d6#
- 1...Qc4
- 2.Rxc4#
- 2.Qxc4#
- 2.d6#
- 1...Rh6
- 2.Qf5#
- 2.d6#
- 1...Sc3
- 2.Sxc3#
- 2.Sd6#
- 1...Qxa4!
- threat
- 1.Be7?
- threat
- 2.Sd6#
- 2.d6#
- 1...e2
- 2.Qf3#
- 1...c1Q
- 2.Sd6#
- 1...c1R
- 2.Sd6#
- 1...Qb4
- 2.Rxb4#
- 2.d6#
- 1...Qc4
- 2.Rxc4#
- 2.Qxc4#
- 2.d6#
- 1...Rh6
- 2.Qf5#
- 2.d6#
- 1...Sc3
- 2.Sxc3#
- 2.Sd6#
- 1...Qxa4!
- threat
- 1.Bb8?
- threat
- 2.Sd6#
- 2.d6#
- 1...e2
- 2.Qf3#
- 1...c1Q
- 2.Sd6#
- 1...c1R
- 2.Sd6#
- 1...Qb4
- 2.Rxb4#
- 2.d6#
- 1...Qc4
- 2.Rxc4#
- 2.Qxc4#
- 2.d6#
- 1...Rh6
- 2.Qf5#
- 2.d6#
- 1...Sc3
- 2.Sxc3#
- 2.Sd6#
- 1...Qxa4!
- threat
- 1.Bf8?
- threat
- 2.Sd6#
- 2.d6#
- 1...e2
- 2.Qf3#
- 1...c1Q
- 2.Sd6#
- 1...c1R
- 2.Sd6#
- 1...Qb4
- 2.Rxb4#
- 2.d6#
- 1...Qc4
- 2.Rxc4#
- 2.Qxc4#
- 2.d6#
- 1...Rh6
- 2.Qf5#
- 2.d6#
- 1...Sc3
- 2.Sxc3#
- 2.Sd6#
- 1...Qxa4!
- threat
- 1.Qg2+?
- 1...Kf4
- 2.Rxd4#
- 1...Kd3!
- 1...Kf4
- 1.Ba3?
- Keys
- 1.Bb4!
- threat
- 2.Sd6#
- 1...Qxd5+
- 2.Bd6#
- 1...Qxb6
- 2.Bc5#
- 1...Qxb4
- 2.Rxb4#
- 2.d6#
- 1...e2
- 2.Qf3#
- 1...Qa1
- 2.d6#
- 1...Qb2
- 2.d6#
- 1...Qc3
- 2.Bxc3#
- 1...Qc5
- 2.Bxc5#
- 1...Qd1
- 2.Bd2#
- 1...Qd2
- 2.Bxd2#
- 1...Qd3
- 2.Qf3#
- 1...Qc4
- 2.Qxc4#
- 1...Rh6
- 2.Qf5#
- threat
- 1.Bb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 10
- REMOVED MATES = 5
- Sets
- Q(d);OGATEB::R(B),XQ(d)
- R(g);N_GUARD::QAB1(A),XR(g)
- R(g);N_GUARD::QAB1(A)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- P(c);::QAB1(A)
- Tries
- Try
- B(G);P_SPINP(E)
- Threat
- DUALS(2)
- Vars
- P(c);::QAB1(A)
- P(b);::S(D)
- Refutation
- Q(d);N_PINP(E),N_SPINQ(d),P_PINS(D),XR(B)
- Try
- B(G);P_SPINP(E)
- Threat
- DUALS(2)
- Vars
- P(c);::QAB1(A)
- Refutation
- Q(d);N_PINP(E),N_SPINQ(d),P_PINS(D),XR(B)
- Try
- B(G);P_SPINP(E)
- Threat
- DUALS(2)
- Vars
- P(c);::QAB1(A)
- P(b);::S(D)
- Refutation
- Q(d);N_PINP(E),N_SPINQ(d),P_PINS(D),XR(B)
- Try
- B(G);P_SPINP(E)
- Threat
- DUALS(2)
- Vars
- P(c);::QAB1(A)
- P(b);::S(D)
- Refutation
- Q(d);N_PINP(E),N_SPINQ(d),P_PINS(D),XR(B)
- Try
- B(G);P_SPINP(E)
- Threat
- DUALS(2)
- Vars
- P(c);::QAB1(A)
- P(b);::S(D)
- Refutation
- Q(d);N_PINP(E),N_SPINQ(d),P_PINS(D),XR(B)
- Try
- B(G);P_SPINP(E)
- Threat
- DUALS(2)
- Vars
- P(c);::QAB1(A)
- P(b);::S(D)
- Refutation
- Q(d);N_PINP(E),N_SPINQ(d),P_PINS(D),XR(B)
- Try
- Q(A);CHECK
- Vars
- K(e);P-FLIGHT,P_SPINP(f)::R(B),XQ(d)
- Refutation
- K(e);N_SPINQ(d),S_FLIGHT
- Try
- Actual
- B(G);N_PINQ(d),P_SPINP(E)
- Threat
- S(D)
- Vars
- Q(d);CHECK,OGATEB,P_SPINQ(d),XP(E)::R(B)+B(G)
- Q(d);N_PINP(E),OGATEB,XP(F)::R(B)+B(G)
- P(c);::QAB1(A)
- Q(d);N_GUARD,N_PINP(E)::B(I)+P(E)
- Q(d);N_PINP(E),OGATEB::R(B)+B(G),XQ(d)
- Q(d);OGATEB::R(B)+B(G)
- Q(d);OGATEB::R(B)+B(G),XQ(d)
- Q(d);SBLOCK::QAB1(A)
- Q(d);N_PINP(E),OGATEB::QAR2(A),XQ(d)
- R(g);N_GUARD::QAB1(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).