MESON Chess Problem Database
Problem Display
PID: 16780 (3B4/8/1q2p3/kpR1n2p/1N5R/1P3p2/1N1Qrp2/5B1K w - - 0 1)
Warton, Joseph John
Warton, Thomas Joseph
Chess, 1943
#2
9 + 9
SOLUTION
- SOUND
- Sets
- 1...Qc7
- 2.Bxc7#
- 1...Qxd8
- 2.Qxd8#
- 1...Re1
- 2.Rxb5#
- 1...Rxd2
- 2.Rxb5#
- 1...Re3
- 2.Rxb5#
- 1...Re4
- 2.Rxb5#
- 1...Sd3
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sg4
- 2.Sc4#
- 1...Sc6
- 2.Sc4#
- 1...Sg6
- 2.Sc4#
- 1...Sd7
- 2.Sc4#
- 1...Sf7
- 2.Sc4#
- 1...Qc7
- Tries
- 1.Kh2?
- 1...Qxd8
- 2.Qxd8#
- 1...Rxd2
- 2.Rxb5#
- 1...Qc7
- 2.Bxc7#
- 1...Re1
- 2.Rxb5#
- 1...Re3
- 2.Rxb5#
- 1...Re4
- 2.Rxb5#
- 1...Sd3
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sc6
- 2.Sc4#
- 1...Sg6
- 2.Sc4#
- 1...Sd7
- 2.Sc4#
- 1...Sf7
- 2.Sc4#
- 1...Sg4+!
- 1...Qxd8
- 1.Sa2+?
- 1...Rxd2
- 2.Ra4#
- 1...Ka6!
- 1...Rxd2
- 1.Sc2+?
- 1...Rxd2
- 2.Ra4#
- 1...Ka6!
- 1...Rxd2
- 1.S4d3+?
- 1...Rxd2
- 2.Ra4#
- 1...Ka6!
- 1...Rxd2
- 1.Sd5+?
- 1...Rxd2
- 2.Ra4#
- 1...Ka6!
- 1...Rxd2
- 1.Sa6+?
- 1...Rxd2
- 2.Ra4#
- 1...Kxa6!
- 1...Rxd2
- 1.Bc7?
- 1...Rxd2
- 2.Rxb5#
- 1...Sc4
- 2.Sxc4#
- 1...Re1
- 2.Rxb5#
- 1...Re3
- 2.Rxb5#
- 1...Re4
- 2.Rxb5#
- 1...Sd3
- 2.Sc4#
- 1...Sg4
- 2.Sc4#
- 1...Sc6
- 2.Sc4#
- 1...Sg6
- 2.Sc4#
- 1...Sd7
- 2.Sc4#
- 1...Sf7
- 2.Sc4#
- 1...Qxc7!
- 1...Rxd2
- 1.Re4?
- 1...Qxd8
- 2.Qxd8#
- 1...Rxd2
- 2.Rxb5#
- 1...Rxe4
- 2.Rxb5#
- 1...Qc7
- 2.Bxc7#
- 1...Re1
- 2.Rxb5#
- 1...Re3
- 2.Rxb5#
- 1...Sd3
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sg4
- 2.Sc4#
- 1...Sc6
- 2.Sc4#
- 1...Sg6
- 2.Sc4#
- 1...Sd7
- 2.Sc4#
- 1...Sf7
- 2.Sc4#
- 1...h4!
- 1...Qxd8
- 1.Rf4?
- 1...Qxd8
- 2.Qxd8#
- 1...Rxd2
- 2.Rxb5#
- 1...Qc7
- 2.Bxc7#
- 1...Re1
- 2.Rxb5#
- 1...Re3
- 2.Rxb5#
- 1...Re4
- 2.Rxb5#
- 1...Sd3
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sg4
- 2.Sc4#
- 1...Sc6
- 2.Sc4#
- 1...Sg6
- 2.Sc4#
- 1...Sd7
- 2.Sc4#
- 1...Sf7
- 2.Sc4#
- 1...h4!
- 1...Qxd8
- 1.Rxh5?
- 1...Rxd2
- 2.Rxb5#
- 1...Qc7
- 2.Bxc7#
- 1...Re1
- 2.Rxb5#
- 1...Re3
- 2.Rxb5#
- 1...Re4
- 2.Rxb5#
- 1...Sd3
- 2.Sc4#
- 2.Rxb5#
- 1...Sc4
- 2.Sxc4#
- 2.Rxb5#
- 1...Sg4
- 2.Sc4#
- 2.Rxb5#
- 1...Sc6
- 2.Sc4#
- 2.Rxb5#
- 1...Sg6
- 2.Sc4#
- 2.Rxb5#
- 1...Sd7
- 2.Sc4#
- 2.Rxb5#
- 1...Sf7
- 2.Sc4#
- 2.Rxb5#
- 1...Qxd8!
- 1...Rxd2
- 1.Rxe5?
- threat
- 2.Sc4#
- 1...Rxd2
- 2.Rxb5#
- 1...Re4
- 2.Rxb5#
- 1...Rxe5!
- threat
- 1.Rc7?
- threat
- 2.Ra7#
- 1...Qxc7
- 2.Bxc7#
- 1...Qa7
- 2.Rxa7#
- 1...Qb7
- 2.Rxb7#
- 1...Sc6!
- threat
- 1.Rc8?
- threat
- 2.Ra8#
- 1...Qxd8
- 2.Qxd8#
- 1...Qc7
- 2.Bxc7#
- 1...Sc6!
- threat
- 1.Qc3?
- 1...Rxb2
- 2.Rxb5#
- 1...Qc7
- 2.Bxc7#
- 1...Re1
- 2.Rxb5#
- 1...Rc2
- 2.Rxb5#
- 1...Rd2
- 2.Rxb5#
- 1...Re3
- 2.Rxb5#
- 1...Re4
- 2.Rxb5#
- 1...Sd3
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sg4
- 2.Sc4#
- 1...Sc6
- 2.Sc4#
- 1...Sg6
- 2.Sc4#
- 1...Sd7
- 2.Sc4#
- 1...Sf7
- 2.Sc4#
- 1...Qxd8!
- 1...Rxb2
- 1.Qd5?
- threat
- 2.Rxb5#
- 2.Qa8#
- 1...Qxd8
- 2.Rxb5#
- 2.Qxd8#
- 1...Qc7
- 2.Bxc7#
- 2.Rxb5#
- 1...Re4
- 2.Rxb5#
- 1...Sc4
- 2.Rxb5#
- 1...Sg4
- 2.Rxb5#
- 1...Sc6
- 2.Rxb5#
- 1...exd5!
- threat
- 1.Kh2?
- Keys
- 1.Qg5!
- 1...Qxd8
- 2.Qxd8#
- 1...Rxb2
- 2.Rxb5#
- 1...Qc7
- 2.Bxc7#
- 1...Re4
- 2.Rxb5#
- 1...Sc4
- 2.Rxb5#
- 1...Sg4
- 2.Rxb5#
- 1...Re1
- 2.Rxb5#
- 1...Rc2
- 2.Rxb5#
- 1...Rd2
- 2.Rxb5#
- 1...Re3
- 2.Rxb5#
- 1...Sd3
- 2.Rxb5#
- 1...Sc6
- 2.Rxb5#
- 1...Sg6
- 2.Rxb5#
- 1...Sd7
- 2.Rxb5#
- 1...Sf7
- 2.Rxb5#
- 1...Qxd8
- 1.Qg5!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 7
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- Q(h);OGATEB::B(I),XQ(h)
- Q(h);N_SPINQ(h),OGATE,XB(I)::QAB(D),XQ(h)
- R(a);P_PINB(A)::R1(H),XP(e)
- R(a);XQ(D)::R1(H),XP(e)
- R(a);::R1(H),XP(e)
- S(f);N_GUARD::S(C)
- S(f);N_GUARD::S(C),XS(f)
- Tries
- Try
- K(B);P-FLIGHT
- Vars
- Q(h);N_SPINQ(h),OGATE,XB(I)::QAB(D),XQ(h)
- R(a);XQ(D)::R1(H),XP(e)
- Q(h);OGATEB::B(I),XQ(h)
- R(a);::R1(H),XP(e)
- S(f);N_GUARD::S(C)
- S(f);N_GUARD::S(C),XS(f)
- Refutation
- S(f);CHECK
- Try
- S(F);CHECK
- Vars
- R(a);XQ(D)::R1(G)
- Refutation
- K(d);N_SPINP(e),N_SPINQ(h),P-FLIGHT
- Try
- S(F);CHECK
- Vars
- R(a);XQ(D)::R1(G)
- Refutation
- K(d);N_SPINP(e),N_SPINQ(h),P-FLIGHT
- Try
- S(F);CHECK
- Vars
- R(a);XQ(D)::R1(G)
- Refutation
- K(d);N_SPINP(e),N_SPINQ(h),P-FLIGHT
- Try
- S(F);CHECK
- Vars
- R(a);XQ(D)::R1(G)
- Refutation
- K(d);N_SPINP(e),N_SPINQ(h),P-FLIGHT
- Try
- S(F);CHECK
- Vars
- R(a);XQ(D)::R1(G)
- Refutation
- K(d);N_SPINP(e),N_SPINQ(h),P-FLIGHT,XS(F)
- Try
- B(I);
- Vars
- R(a);XQ(D)::R1(H),XP(e)
- S(f);N_GUARD::S(C),XS(f)
- R(a);P_PINB(A)::R1(H),XP(e)
- R(a);::R1(H),XP(e)
- S(f);N_GUARD::S(C)
- Refutation
- Q(h);N_SPINQ(h),XB(I)
- Try
- R(G);
- Vars
- Q(h);N_SPINQ(h),OGATE,XB(I)::QAB(D),XQ(h)
- R(a);XQ(D)::R1(H),XP(e)
- R(a);XR(G)::R1(H),XP(e)
- Q(h);OGATEB::B(I),XQ(h)
- R(a);P_PINB(A)::R1(H),XP(e)
- R(a);::R1(H),XP(e)
- S(f);N_GUARD::S(C)
- S(f);N_GUARD::S(C),XS(f)
- Refutation
- P(g);
- Try
- R(G);
- Vars
- Q(h);N_SPINQ(h),OGATE,XB(I)::QAB(D),XQ(h)
- R(a);XQ(D)::R1(H),XP(e)
- Q(h);OGATEB::B(I),XQ(h)
- R(a);P_PINB(A)::R1(H),XP(e)
- R(a);::R1(H),XP(e)
- S(f);N_GUARD::S(C)
- S(f);N_GUARD::S(C),XS(f)
- Refutation
- P(g);
- Try
- R(G);XP(g)
- Vars
- R(a);XQ(D)::R1(H),XP(e)
- Q(h);OGATEB::B(I),XQ(h)
- R(a);P_PINB(A)::R1(H),XP(e)
- R(a);::R1(H),XP(e)
- Refutation
- Q(h);N_SPINQ(h),XB(I)
- Try
- R(H);XS(f)
- Threat
- S(C)
- Vars
- R(a);XQ(D)::R1(H),XP(e)
- R(a);::R1(H),XP(e)
- Refutation
- R(a);N_SPINP(e),XR(H)
- Try
- R(H);N_PINP(e),N_PINQ(h)
- Threat
- R(H)
- Vars
- Q(h);OGATE,P_SPINQ(h),XR(H)::B(I),XQ(h)
- Q(h);::B(I)+R(H),DCHECK,XQ(h)
- Q(h);OGATEB::B(I)+R(H),XQ(h)
- Refutation
- S(f);
- Try
- R(H);N_PINP(e)
- Threat
- R(H)
- Vars
- Q(h);N_SPINQ(h),OGATE,XB(I)::QAB(D),XQ(h)
- Q(h);OGATEB::B(I),XQ(h)
- Refutation
- S(f);
- Try
- Q(D);
- Vars
- R(a);XS(C)::R1(H),XP(e)
- Q(h);OGATEB::B(I),XQ(h)
- R(a);P_PINB(A)::R1(H),XP(e)
- R(a);::R1(H),XP(e)
- S(f);N_GUARD::S(C)
- S(f);N_GUARD::S(C),XS(f)
- Refutation
- Q(h);N_SPINQ(h),XB(I)
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- R(a);::R1(H),XP(e)
- S(f);::R1(H),XP(e)
- Refutation
- P(i);XQ(D)
- Try
- Actual
- Q(D);
- Vars
- Q(h);N_SPINQ(h),OGATE,XB(I)::QAB(D),XQ(h)
- R(a);XS(C)::R1(H),XP(e)
- Q(h);OGATEB::B(I),XQ(h)
- R(a);::R1(H),XP(e)
- S(f);::R1(H),XP(e)
- R(a);P_PINB(A)::R1(H),XP(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).