MESON Chess Problem Database
Problem Display
PID: 17464 (N4r2/q2p4/pRP2Q2/3k4/1Pp1r1N1/2B2n2/3bbKB1/3R4 w - - 0 1)
Mansfield, Comins
2nd HM., Tijdschrift vd KNSB, 1946/I
#2
10 + 10
| 3550 | Complete Mansfield/II | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Qxb6+
- 2.Sxb6#
- 1...Qc7
- 2.Sxc7#
- 1...Rd4
- 2.Qe5#
- 1...Rf4
- 2.Qe5#
- 1...Rxg4
- 2.Qe5#
- 1...Re5
- 2.Qxe5#
- 1...Re6
- 2.Qd4#
- 1...Se1
- 2.Se3#
- 1...Sg1
- 2.Se3#
- 1...Sh2
- 2.Se3#
- 1...Sh4
- 2.Se3#
- 1...Se5
- 2.Se3#
- 1...Sg5
- 2.Se3#
- 1...dxc6
- 2.Qxc6#
- 1...Qxb6+
- Tries
- 1.Rxd2+?
- 1...Rd4
- 2.Rxd4#
- 2.Qe5#
- 1...Sxd2
- 2.Se3#
- 1...Sd4
- 2.Se3#
- 2.Rxd4#
- 1...Bd3!
- 1...Rd4
- 1.cxd7?
- threat
- 2.Qc6#
- 2.Qd6#
- 1...Qxb6+
- 2.Sxb6#
- 1...Qxa8
- 2.Rd6#
- 2.Qd6#
- 1...Rxg4
- 2.Qe5#
- 2.Qc6#
- 2.Qe6#
- 1...Rxf6
- 2.Sxf6#
- 1...Re3
- 2.Qd4#
- 2.Qc6#
- 1...Rd4
- 2.Qxd4#
- 2.Qe5#
- 2.Qc6#
- 2.Qe6#
- 1...Rf4
- 2.Qe5#
- 2.Qc6#
- 2.Qe6#
- 1...Re5
- 2.Qxe5#
- 2.Qc6#
- 1...Re6
- 2.Qd4#
- 2.Qxe6#
- 1...Re7
- 2.Qd4#
- 2.Qc6#
- 1...Ree8
- 2.Qd4#
- 2.Qc6#
- 1...Qb8
- 2.Qc6#
- 1...Qb7
- 2.Rd6#
- 2.Qd6#
- 1...Qc7
- 2.Sxc7#
- 1...Rc8
- 2.Qd6#
- 1...Se1
- 2.Se3#
- 1...Sg1
- 2.Se3#
- 1...Sh2
- 2.Se3#
- 1...Sd4
- 2.Rd6#
- 1...Sh4
- 2.Se3#
- 1...Se5
- 2.Se3#
- 1...Sg5
- 2.Se3#
- 1...Qxd7!
- threat
- 1.Rxd2+?
- Keys
- 1.c7!
- threat
- 2.Qd6#
- 1...Qxb6+
- 2.Sxb6#
- 1...Qxc7
- 2.Sxc7#
- 1...Rxg4
- 2.Qe5#
- 1...Rxf6
- 2.Sxf6#
- 1...Re3
- 2.Qd4#
- 1...Rd4
- 2.Qxd4#
- 2.Qe5#
- 1...Rf4
- 2.Qe5#
- 1...Re5
- 2.Qxe5#
- 1...Re6
- 2.Qd4#
- 1...Re7
- 2.Qd4#
- 1...Ree8
- 2.Qd4#
- 1...Se1
- 2.Se3#
- 1...Sg1
- 2.Se3#
- 1...Sh2
- 2.Se3#
- 1...Sd4
- 2.Rd6#
- 1...Sh4
- 2.Se3#
- 1...Se5
- 2.Se3#
- 1...Sg5
- 2.Se3#
- 1...d6
- 2.Qxd6#
- threat
- 1.c7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 2
- Sets
- Q(h);CHECK,XR(G)::S(J),XQ(h)
- Q(h);N_GUARD,N_PINR(G)::S(J),XQ(h)
- R(e);N_GUARD,N_PINR(G),N_SPINB(a),P_SPINS(c)::QAR1(I)
- R(e);N_GUARD,P_SPINS(c)::QAR1(I)
- R(e);N_GUARD,P_SPINS(c),XS(F)::QAR1(I)
- R(e);N_GUARD,P_SPINS(c)::QAR1(I),XR(e)
- R(e);N_GUARD,P_SPINS(c),SBLOCK::QAR1(I)
- S(c);P_PINQ(I),P_SPINR(e)::S(F)
- P(i);OGATE,XP(H)::QAB1(I),XP(i)
- Tries
- Try
- R(A);CHECK,XB(a)
- Vars
- S(c);P_PINQ(I),P_SPINR(e),XR(A)::S(F)
- Refutation
- B(b);P_SPINB(b)
- Try
- P(H);XP(i)
- Threat
- DUALS(2)
- Vars
- Q(h);CHECK,XR(G)::S(J),XQ(h)
- R(j);XQ(I)::S(F),XR(j)
- Q(h);N_PINR(G)::QAB1(I)
- Q(h);N_GUARD,N_PINR(G)::S(J),XQ(h)
- R(j);::QAR1(I)
- S(c);P_PINQ(I),P_SPINR(e)::S(F)
- S(c);N_PINR(G),N_SPINB(a),P_PINQ(I),P_SPINR(e)::R1(G)
- Refutation
- Q(h);N_PINR(G),XP(H)
- Try
- Actual
- P(H);
- Threat
- QAR1(I)
- Vars
- Q(h);CHECK,XR(G)::S(J),XQ(h)
- Q(h);N_PINR(G),XP(H)::S(J),XQ(h)
- R(e);N_GUARD,P_SPINS(c),XS(F)::QAR1(I)
- R(j);XQ(I)::S(F),XR(j)
- R(e);N_GUARD,N_PINR(G),P_SPINS(c)::QAR1(I)
- R(e);N_GUARD,P_SPINS(c)::QAR1(I)
- R(e);N_GUARD,P_SPINS(c)::QAR1(I),XR(e)
- S(c);P_PINQ(I),P_SPINR(e)::S(F)
- S(c);N_PINR(G),N_SPINB(a),P_PINQ(I),P_SPINR(e)::R1(G)
- P(i);::QAR1(I),XP(i)
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).