MESON Chess Problem Database
Problem Display
PID: 53837 (K3R3/4np2/N2pb3/2Q2p1q/2PBkbnR/3p4/3P2P1/8 w - - 0 1)
Pickering, S
Chess, 1943
#2
9 + 10
SOLUTION
- SOUND
- Sets
- 1...Bd5+
- 2.Qxd5#
- 1...Bd7
- 2.Qd5#
- 1...Bc8
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Sc6
- 2.Qd5#
- 1...Sg6
- 2.Qd5#
- 1...Sc8
- 2.Qd5#
- 1...Sg8
- 2.Qd5#
- 1...Bd5+
- Tries
- 1.Ba1?
- threat
- 2.Qd4#
- 1...Bd5+
- 2.Qxd5#
- 1...dxc5
- 2.Sxc5#
- 1...Be3
- 2.Qxe3#
- 1...Be5
- 2.Qe3#
- 1...Sc6
- 2.Qd5#
- 1...Qh8!
- threat
- 1.Bb2?
- threat
- 2.Qd4#
- 1...Bd5+
- 2.Qxd5#
- 1...dxc5
- 2.Sxc5#
- 1...Be3
- 2.Qxe3#
- 1...Be5
- 2.Qe3#
- 1...Sc6
- 2.Qd5#
- 1...Qh8!
- threat
- 1.Bc3?
- threat
- 2.Qd4#
- 1...Bd5+
- 2.Qxd5#
- 1...dxc5
- 2.Sxc5#
- 1...Be3
- 2.Qxe3#
- 1...Be5
- 2.Qe3#
- 1...Sc6
- 2.Qd5#
- 1...Qh8!
- threat
- 1.Bg7?
- threat
- 2.Qd4#
- 1...Bd5+
- 2.Qxd5#
- 1...dxc5
- 2.Sxc5#
- 1...Be3
- 2.Qxe3#
- 1...Be5
- 2.Qe3#
- 1...Se5
- 2.Qe3#
- 1...Sf6
- 2.Qe3#
- 1...Sc6
- 2.Qd5#
- 1...f6!
- threat
- 1.Qxd6?
- threat
- 2.Sc5#
- 1...Bd5+
- 2.Qxd5#
- 1...Be5
- 2.Qxe5#
- 1...Sd5
- 2.Qxd5#
- 1...Bxd6!
- threat
- 1.Ba1?
- Keys
- 1.Bf6!
- threat
- 2.Qd4#
- 1...Bd5+
- 2.Qxd5#
- 1...Sxf6
- 2.Qe3#
- 1...dxc5
- 2.Sxc5#
- 1...Be3
- 2.Qxe3#
- 1...Be5
- 2.Qe3#
- 1...Se5
- 2.Qe3#
- 1...Sc6
- 2.Qd5#
- threat
- 1.Bf6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 6
- Sets
- B(h);CHECK,N_GUARD,P_SPINS(i)::QAB1(F),XB(h)
- B(h);N_GUARD,P_SPINS(i)::QAB1(F)
- S(i);N_GUARD,P_SPINB(h)::QAB1(F),XS(i)
- S(i);N_GUARD,P_SPINB(h)::QAB1(F)
- Tries
- Try
- B(D);
- Threat
- QAR1(F)
- Vars
- B(h);CHECK,N_GUARD,P_SPINS(i)::QAB1(F),XB(h)
- P(g);XQ(F)::S(G),XP(g)
- B(c);N_GUARD,P_SPINS(d)::QAR1(F),XB(c)
- B(c);N_GUARD,P_SPINS(d)::QAR1(F)
- S(i);N_GUARD,P_SPINB(h)::QAB1(F)
- Refutation
- Q(f);P_PINR(I)
- Try
- B(D);
- Threat
- QAR1(F)
- Vars
- B(h);CHECK,N_GUARD,P_SPINS(i)::QAB1(F),XB(h)
- P(g);XQ(F)::S(G),XP(g)
- B(c);N_GUARD,P_SPINS(d)::QAR1(F),XB(c)
- B(c);N_GUARD,P_SPINS(d)::QAR1(F)
- S(i);N_GUARD,P_SPINB(h)::QAB1(F)
- Refutation
- Q(f);P_PINR(I)
- Try
- B(D);
- Threat
- QAR1(F)
- Vars
- B(h);CHECK,N_GUARD,P_SPINS(i)::QAB1(F),XB(h)
- P(g);XQ(F)::S(G),XP(g)
- B(c);N_GUARD,P_SPINS(d)::QAR1(F),XB(c)
- B(c);N_GUARD,P_SPINS(d)::QAR1(F)
- S(i);N_GUARD,P_SPINB(h)::QAB1(F)
- Refutation
- Q(f);P_PINR(I)
- Try
- B(D);
- Threat
- QAR1(F)
- Vars
- B(h);CHECK,N_GUARD,P_SPINS(i)::QAB1(F),XB(h)
- P(g);XQ(F)::S(G),XP(g)
- B(c);N_GUARD,P_SPINS(d)::QAR1(F),XB(c)
- B(c);N_GUARD,P_SPINS(d)::QAR1(F)
- S(d);N_GUARD,P_SPINB(c)::QAR1(F)
- S(i);N_GUARD,P_SPINB(h)::QAB1(F)
- Refutation
- P(j);
- Try
- Q(F);XP(g)
- Threat
- S(G)
- Vars
- B(h);CHECK,N_GUARD,P_SPINS(i)::QAB1(F),XB(h)
- B(c);N_GUARD,P_SPINS(d)::QAR1(F),XB(c)
- S(i);N_GUARD,P_SPINB(h)::QAB1(F),XS(i)
- Refutation
- B(c);P_SPINS(d),XQ(F)
- Try
- Actual
- B(D);
- Threat
- QAR1(F)
- Vars
- B(h);CHECK,N_GUARD,P_SPINS(i)::QAB1(F),XB(h)
- S(d);N_GUARD,P_SPINB(c),XB(D)::QAR1(F)
- P(g);XQ(F)::S(G),XP(g)
- B(c);N_GUARD,P_SPINS(d)::QAR1(F),XB(c)
- B(c);N_GUARD,P_SPINS(d)::QAR1(F)
- S(d);N_GUARD,P_SPINB(c)::QAR1(F)
- S(i);N_GUARD,P_SPINB(h)::QAB1(F)
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).