MESON Chess Problem Database
Problem Display
PID: 143180 (3b2N1/8/2R2Pp1/1PPk1b2/2p1pR2/2Bp1P2/Q7/4K3 w - - 0 1)
Harley, Brian
Social Chess Quarterly (The), 1934
#2
10 + 7
SOLUTION
- SOUND
- Sets
- 1...Bh3
- 2.fxe4#
- 1...Bg4
- 2.fxe4#
- 1...Be6
- 2.fxe4#
- 1...Bd7
- 2.fxe4#
- 1...Bc8
- 2.fxe4#
- 1...Ba5
- 2.Se7#
- 1...Bb6
- 2.Se7#
- 1...Bxf6
- 2.Sxf6#
- 1...Bc7
- 2.Se7#
- 1...Be7
- 2.Sxe7#
- 1...d2+
- 2.Qxd2#
- 1...exf3
- 2.Qxc4#
- 1...e3
- 2.Qxc4#
- 1...g5
- 2.Rxf5#
- 1...Bh3
- Tries
- 1.Kd1?
- 1...Bxf6
- 2.Sxf6#
- 1...exf3
- 2.Qxc4#
- 1...Bh3
- 2.fxe4#
- 1...Be6
- 2.fxe4#
- 1...Bd7
- 2.fxe4#
- 1...Bc8
- 2.fxe4#
- 1...Ba5
- 2.Se7#
- 1...Bb6
- 2.Se7#
- 1...Bc7
- 2.Se7#
- 1...Be7
- 2.Sxe7#
- 1...d2
- 2.Qxd2#
- 1...e3
- 2.Qxc4#
- 1...g5
- 2.Rxf5#
- 1...Bg4!
- 1...Bxf6
- 1.Kf1?
- 1...Bxf6
- 2.Sxf6#
- 1...exf3
- 2.Qxc4#
- 1...Bg4
- 2.fxe4#
- 1...Be6
- 2.fxe4#
- 1...Bd7
- 2.fxe4#
- 1...Bc8
- 2.fxe4#
- 1...Ba5
- 2.Se7#
- 1...Bb6
- 2.Se7#
- 1...Bc7
- 2.Se7#
- 1...Be7
- 2.Sxe7#
- 1...d2
- 2.Qxd2#
- 1...e3
- 2.Qxc4#
- 1...g5
- 2.Rxf5#
- 1...Bh3+!
- 1...Bxf6
- 1.Kd2?
- 1...Bxf6
- 2.Sxf6#
- 1...exf3
- 2.Qxc4#
- 1...Bh3
- 2.fxe4#
- 1...Bg4
- 2.fxe4#
- 1...Be6
- 2.fxe4#
- 1...Bd7
- 2.fxe4#
- 1...Bc8
- 2.fxe4#
- 1...Ba5
- 2.Se7#
- 1...Bb6
- 2.Se7#
- 1...Bc7
- 2.Se7#
- 1...Be7
- 2.Sxe7#
- 1...g5
- 2.Rxf5#
- 1...e3+!
- 1...Bxf6
- 1.Kf2?
- 1...Bxf6
- 2.Sxf6#
- 1...exf3
- 2.Qxc4#
- 1...Bh3
- 2.fxe4#
- 1...Bg4
- 2.fxe4#
- 1...Be6
- 2.fxe4#
- 1...Bd7
- 2.fxe4#
- 1...Bc8
- 2.fxe4#
- 1...Ba5
- 2.Se7#
- 1...Bb6
- 2.Se7#
- 1...Bc7
- 2.Se7#
- 1...Be7
- 2.Sxe7#
- 1...d2
- 2.Qxd2#
- 1...g5
- 2.Rxf5#
- 1...e3+!
- 1...Bxf6
- 1.Ba1?
- 1...d2+
- 2.Qxd2#
- 1...Bxf6
- 2.Sxf6#
- 1...exf3
- 2.Qxc4#
- 1...Bh3
- 2.fxe4#
- 1...Bg4
- 2.fxe4#
- 1...Be6
- 2.fxe4#
- 1...Bd7
- 2.fxe4#
- 1...Bc8
- 2.fxe4#
- 1...Bb6
- 2.Se7#
- 1...Bc7
- 2.Se7#
- 1...Be7
- 2.Sxe7#
- 1...e3
- 2.Qxc4#
- 1...g5
- 2.Rxf5#
- 1...Ba5+!
- 1...d2+
- 1.Rxe4?
- threat
- 2.Re5#
- 2.Qxc4#
- 1...d2+
- 2.Qxd2#
- 1...Bxf6
- 2.Sxf6#
- 2.Qxc4#
- 1...Bc7
- 2.Se7#
- 2.Qxc4#
- 1...Bxe4!
- threat
- 1.Qf2?
- threat
- 2.Rd6#
- 2.Qd4#
- 1...d2+
- 2.Qxd2#
- 1...Bxf6
- 2.Sxf6#
- 2.Rd6#
- 1...Bc7
- 2.Se7#
- 2.Qd4#
- 1...Be7
- 2.Sxe7#
- 2.Qd4#
- 1...e3!
- threat
- 1.Qa3?
- threat
- 2.Rd6#
- 1...Bc7
- 2.Se7#
- 1...Be7
- 2.Sxe7#
- 1...d2+!
- threat
- 1.Qa4?
- 1...Bxf6
- 2.Sxf6#
- 1...exf3
- 2.Qxc4#
- 1...e3
- 2.Qxc4#
- 1...Bh3
- 2.fxe4#
- 1...Bg4
- 2.fxe4#
- 1...Be6
- 2.fxe4#
- 1...Bd7
- 2.fxe4#
- 1...Bc8
- 2.fxe4#
- 1...Ba5
- 2.Se7#
- 1...Bb6
- 2.Se7#
- 1...Bc7
- 2.Se7#
- 1...Be7
- 2.Sxe7#
- 1...g5
- 2.Rxf5#
- 1...d2+!
- 1...Bxf6
- 1.Qa7?
- threat
- 2.Rd6#
- 1...Bb6
- 2.Se7#
- 1...Bc7
- 2.Se7#
- 1...Be7
- 2.Sxe7#
- 1...d2+!
- threat
- 1.Kd1?
- Keys
- 1.Qh2!
- 1...d2+
- 2.Qxd2#
- 1...Bxf6
- 2.Sxf6#
- 1...exf3
- 2.Rd4#
- 1...e3
- 2.Rd4#
- 1...Bh3
- 2.fxe4#
- 1...Bg4
- 2.fxe4#
- 1...Be6
- 2.fxe4#
- 1...Bd7
- 2.fxe4#
- 1...Bc8
- 2.fxe4#
- 1...Ba5
- 2.Se7#
- 1...Bb6
- 2.Se7#
- 1...Bc7
- 2.Se7#
- 1...Be7
- 2.Sxe7#
- 1...g5
- 2.Rxf5#
- 1...d2+
- 1.Qh2!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(e);N_GUARD::P(D),XP(c)
- B(g);N_GUARD,P_PINB(C)::S(J)
- B(g);N_GUARD::S(J)
- B(g);XP(I)::S(J),XB(g)
- B(g);N_GUARD::S(J),XB(g)
- P(a);CHECK,OGATEB::QAR(B),XP(a)
- P(c);XP(D)::QAB1(B),XP(b)
- P(c);::QAB1(B),XP(b)
- P(f);N_GUARD::R(E),XB(e)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- B(g);XP(I)::S(J),XB(g)
- P(c);XP(D)::QAB1(B),XP(b)
- B(e);N_GUARD::P(D),XP(c)
- B(g);N_GUARD::S(J)
- B(g);N_GUARD::S(J),XB(g)
- P(a);OGATEB::QAR(B),XP(a)
- P(c);::QAB1(B),XP(b)
- P(f);N_GUARD::R(E),XB(e)
- Refutation
- B(e);P_PINP(D)
- Try
- K(A);P-FLIGHT
- Vars
- B(g);XP(I)::S(J),XB(g)
- P(c);XP(D)::QAB1(B),XP(b)
- B(e);N_GUARD::P(D),XP(c)
- B(g);N_GUARD::S(J)
- B(g);N_GUARD::S(J),XB(g)
- P(a);OGATEB::QAR(B),XP(a)
- P(c);::QAB1(B),XP(b)
- P(f);N_GUARD::R(E),XB(e)
- Refutation
- B(e);CHECK
- Try
- K(A);S_FLIGHT
- Vars
- B(g);XP(I)::S(J),XB(g)
- P(c);XP(D)::QAB1(B),XP(b)
- B(e);N_GUARD::P(D),XP(c)
- B(g);N_GUARD,P_PINB(C)::S(J)
- B(g);N_GUARD::S(J)
- B(g);N_GUARD::S(J),XB(g)
- P(f);N_GUARD::R(E),XB(e)
- Refutation
- P(c);CHECK
- Try
- K(A);S_FLIGHT
- Vars
- B(g);XP(I)::S(J),XB(g)
- P(c);XP(D)::QAB1(B),XP(b)
- B(e);N_GUARD::P(D),XP(c)
- B(g);N_GUARD::S(J)
- B(g);N_GUARD,P_PINP(G)::S(J)
- B(g);N_GUARD::S(J),XB(g)
- P(a);OGATEB::QAR(B),XP(a)
- P(f);N_GUARD::R(E),XB(e)
- Refutation
- P(c);CHECK
- Try
- B(C);
- Vars
- P(a);CHECK,OGATEB::QAR(B),XP(a)
- B(g);XP(I)::S(J),XB(g)
- P(c);XP(D)::QAB1(B),XP(b)
- B(e);N_GUARD::P(D),XP(c)
- B(g);N_GUARD::S(J)
- B(g);N_GUARD::S(J),XB(g)
- P(c);::QAB1(B),XP(b)
- P(f);N_GUARD::R(E),XB(e)
- Refutation
- B(g);CHECK
- Try
- R(E);XP(c)
- Threat
- DUALS(2)
- Vars
- P(a);CHECK,OGATEB::QAR(B),XP(a)
- Refutation
- B(e);XR(E)
- Try
- Q(B);N_PINP(b)
- Threat
- DUALS(2)
- Vars
- P(a);CHECK,OGATEB::QAR(B),XP(a)
- Refutation
- P(c);
- Try
- Q(B);N_PINP(b)
- Threat
- R1(H)
- Vars
- B(g);N_GUARD::S(J)
- B(g);N_GUARD::S(J),XB(g)
- Refutation
- P(a);CHECK
- Try
- Q(B);N_PINP(b)
- Vars
- B(g);XP(I)::S(J),XB(g)
- P(c);XP(D)::QAB1(B),XP(b)
- P(c);::QAB1(B),XP(b)
- B(e);N_GUARD::P(D),XP(c)
- B(g);N_GUARD,P_PINB(C)::S(J)
- B(g);N_GUARD::S(J)
- B(g);N_GUARD::S(J),XB(g)
- P(f);N_GUARD::R(E),XB(e)
- Refutation
- P(a);CHECK
- Try
- Q(B);N_PINP(b)
- Threat
- R1(H)
- Vars
- B(g);N_GUARD::S(J)
- B(g);N_GUARD::S(J),XB(g)
- Refutation
- P(a);CHECK
- Try
- Actual
- Q(B);N_PINP(b)
- Vars
- P(a);CHECK,OGATEB::QAR(B),XP(a)
- B(g);XP(I)::S(J),XB(g)
- P(c);OGATE,XP(D)::R1(E)
- P(c);OGATE::R1(E)
- B(e);N_GUARD::P(D),XP(c)
- B(g);N_GUARD,P_PINB(C)::S(J)
- B(g);N_GUARD::S(J)
- B(g);N_GUARD::S(J),XB(g)
- P(f);N_GUARD::R(E),XB(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).