MESON Chess Problem Database
Problem Display
PID: 145297 (6K1/3B4/b3R3/3q2P1/3P1Pk1/2P3P1/3N4/4N1QR w - - 0 1)
Persson, Manne
1st HM., Swedish Chess Federation, 1935
#2
12 + 3
SOLUTION
- SOUND
- Sets
- 1...Qxh1
- 2.Rh6#
- 1...Qg2
- 2.Re3#
- 1...Qf3
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Re5#
- 2.Rxa6#
- 2.Rb6#
- 2.Rc6#
- 2.Rd6#
- 2.Rf6#
- 2.Rg6#
- 2.Reh6#
- 2.Re7#
- 2.Re8#
- 1...Qe4
- 2.Rxe4#
- 1...Qc6
- 2.Rxc6#
- 1...Qxe6+
- 2.Bxe6#
- 1...Qa8+
- 2.Re8#
- 1...Qxd4
- 2.Rd6#
- 1...Qa5
- 2.Re5#
- 1...Qc5
- 2.Re5#
- 1...Qe5
- 2.Rxe5#
- 1...Qf5
- 2.Rh4#
- 1...Qxg5+
- 2.Rg6#
- 1...Qd6
- 2.Rxd6#
- 1...Qxh1
- Tries
- 1.Sf1?
- threat
- 2.Se3#
- 1...Qxe6+
- 2.Bxe6#
- 1...Qa8+
- 2.Re8#
- 1...Qxg5+
- 2.Rg6#
- 1...Kf5
- 2.Se3#
- 1...Qxh1
- 2.Rh6#
- 1...Qxd4
- 2.Rd6#
- 1...Qg2
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Re5#
- 2.Rxa6#
- 2.Rb6#
- 2.Rc6#
- 2.Rd6#
- 2.Rf6#
- 2.Rg6#
- 2.Reh6#
- 2.Re7#
- 2.Re8#
- 1...Qf3
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Re5#
- 2.Rxa6#
- 2.Rb6#
- 2.Rc6#
- 2.Rd6#
- 2.Rf6#
- 2.Rg6#
- 2.Reh6#
- 2.Re7#
- 2.Re8#
- 1...Qe4
- 2.Rxe4#
- 1...Qe5
- 2.Rxe5#
- 1...Bxf1!
- threat
- 1.Qh2?
- threat
- 2.Qh3#
- 1...Qxe6+
- 2.Bxe6#
- 1...Qa8+
- 2.Re8#
- 1...Qxg5+
- 2.Rg6#
- 1...Kf5
- 2.Qh3#
- 1...Qxh1
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Re5#
- 2.Rxa6#
- 2.Rb6#
- 2.Rc6#
- 2.Rd6#
- 2.Rf6#
- 2.Rg6#
- 2.Rh6#
- 2.Re7#
- 2.Re8#
- 1...Qg2
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Re5#
- 2.Rxa6#
- 2.Rb6#
- 2.Rc6#
- 2.Rd6#
- 2.Rf6#
- 2.Rg6#
- 2.Rh6#
- 2.Re7#
- 2.Re8#
- 1...Bf1!
- threat
- 1.Qg2?
- threat
- 2.Qh3#
- 1...Qxe6+
- 2.Bxe6#
- 1...Qa8+
- 2.Re8#
- 1...Qxg5+
- 2.Rg6#
- 1...Kf5
- 2.Qh3#
- 1...Qxg2
- 2.Re3#
- 1...Bf1!
- threat
- 1.Sf1?
- Keys
- 1.Sc2!
- threat
- 2.Se3#
- 1...Qxe6+
- 2.Bxe6#
- 1...Qa8+
- 2.Re8#
- 1...Qxg5+
- 2.Rg6#
- 1...Kf5
- 2.Se3#
- 1...Qxh1
- 2.Rh6#
- 1...Qxd4
- 2.Rd6#
- 1...Qg2
- 2.Re3#
- 1...Qf3
- 2.Re1#
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Re5#
- 2.Rxa6#
- 2.Rb6#
- 2.Rc6#
- 2.Rd6#
- 2.Rf6#
- 2.Rg6#
- 2.Reh6#
- 2.Re7#
- 2.Re8#
- 1...Qe4
- 2.Rxe4#
- 1...Qe5
- 2.Rxe5#
- threat
- 1.Sc2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- Q(b);N_PINR(J),XR(C)::B(K)+R(J)
- Q(b);N_PINR(J)::B(K)+R(J)
- Q(b);N_PINR(J)::B(K)+R(J),XQ(b)
- Q(b);CHECK,OGATE,P_SPINQ(b),XR(J)::B(K),XQ(b)
- Q(b);CHECK,N_PINR(J)::B(K)+R(J)
- Q(b);N_PINR(J),XP(G)::B(K)+R(J)
- Q(b);N_PINR(J),SBLOCK::R1(C)
- Q(b);CHECK,N_PINR(J),XP(I)::B(K)+R(J)
- Tries
- Try
- S(D);
- Threat
- S(D)
- Vars
- Q(b);CHECK,OGATE,P_SPINQ(b),XR(J)::B(K),XQ(b)
- Q(b);CHECK,N_PINR(J)::B(K)+R(J)
- Q(b);CHECK,N_PINR(J),XP(I)::B(K)+R(J)
- K(a);S_FLIGHT::S(D)
- Q(b);N_PINR(J),XR(C)::B(K)+R(J)
- Q(b);N_PINR(J),XP(G)::B(K)+R(J)
- Q(b);N_PINR(J)::B(K)+R(J),XQ(b)
- Refutation
- B(c);XS(D)
- Try
- Q(B);
- Threat
- QAB1(B)
- Vars
- Q(b);CHECK,OGATE,P_SPINQ(b),XR(J)::B(K),XQ(b)
- Q(b);CHECK,N_PINR(J)::B(K)+R(J)
- Q(b);CHECK,N_PINR(J),XP(I)::B(K)+R(J)
- K(a);S_FLIGHT::QAB(B)
- Refutation
- B(c);
- Try
- Q(B);
- Threat
- QAB1(B)
- Vars
- Q(b);CHECK,OGATE,P_SPINQ(b),XR(J)::B(K),XQ(b)
- Q(b);CHECK,N_PINR(J)::B(K)+R(J)
- Q(b);CHECK,N_PINR(J),XP(I)::B(K)+R(J)
- K(a);S_FLIGHT::QAB(B)
- Q(b);N_PINR(J),XQ(B)::B(K)+R(J)
- Refutation
- B(c);
- Try
- Actual
- S(A);
- Threat
- S(A)
- Vars
- Q(b);CHECK,OGATE,P_SPINQ(b),XR(J)::B(K),XQ(b)
- Q(b);CHECK,N_PINR(J)::B(K)+R(J)
- Q(b);CHECK,N_PINR(J),XP(I)::B(K)+R(J)
- K(a);S_FLIGHT::S(A)
- Q(b);N_PINR(J),XR(C)::B(K)+R(J)
- Q(b);N_PINR(J),XP(G)::B(K)+R(J)
- Q(b);N_PINR(J)::B(K)+R(J)
- Q(b);N_PINR(J)::B(K)+R(J),XQ(b)
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).