MESON Chess Problem Database
Problem Display
PID: 40192 (B2r4/5N2/1N6/1q1P1rb1/1p2k3/3R1R2/4KP2/BQ6 w - - 0 1)
Taale, Cornelius J
Recomm., BCF 025. Ty., 1937-1938
#2
10 + 6
SOLUTION
- SOUND
- Sets
- 1...Qxd3+
- 2.Qxd3#
- 1...Qa4
- 2.Rb3#
- 2.Rde3#
- 2.Rd4#
- 1...Qc6
- 2.Rde3#
- 2.Rd4#
- 1...Qd7
- 2.Rd1#
- 2.Rd2#
- 2.Ra3#
- 2.Rb3#
- 2.Rde3#
- 2.Rd4#
- 2.Qxb4#
- 1...Qe8
- 2.Rd1#
- 2.Rd2#
- 2.Ra3#
- 2.Rb3#
- 2.Rde3#
- 2.Rd4#
- 2.Qxb4#
- 1...Qa5
- 2.Rd1#
- 2.Rd2#
- 2.Ra3#
- 2.Rb3#
- 2.Rde3#
- 2.Rd4#
- 1...Qc5
- 2.Rde3#
- 2.Rd4#
- 1...Qxd5
- 2.Rd1#
- 2.Rd2#
- 2.Ra3#
- 2.Rb3#
- 2.Rde3#
- 2.Rd4#
- 2.Rxd5#
- 2.Qxb4#
- 1...Qxb6
- 2.Rd1#
- 2.Rd2#
- 2.Ra3#
- 2.Rb3#
- 2.Rde3#
- 2.Rd4#
- 1...Rfxd5
- 2.Sxg5#
- 1...Rf6
- 2.Sxg5#
- 1...Rdxd5
- 2.Sd6#
- 1...Rd6
- 2.Sxd6#
- 1...Rxa8
- 2.Sd6#
- 1...Rb8
- 2.Sd6#
- 1...Rc8
- 2.Sd6#
- 1...Re8
- 2.Sd6#
- 1...Rf8
- 2.Sd6#
- 1...Rg8
- 2.Sd6#
- 1...Rh8
- 2.Sd6#
- 1...Qxd3+
- Tries
- 1.Ke1?
- threat
- 2.Rde3#
- 1...Qxd3
- 2.Qxd3#
- 1...Rxf3
- 2.Rd4#
- 1...Be3
- 2.Rdxe3#
- 1...Bd2+!
- threat
- 1.Sc4?
- threat
- 2.Rd1#
- 2.Rd2#
- 2.Ra3#
- 2.Rb3#
- 2.Rde3#
- 2.Rd4#
- 1...Rxf3
- 2.Rxf3#
- 2.Rd4#
- 1...Rxa8
- 2.Scd6#
- 2.Sfd6#
- 2.Rd1#
- 2.Rd2#
- 2.Rd4#
- 1...Qa4
- 2.Rb3#
- 2.Rde3#
- 2.Rd4#
- 1...Qc6
- 2.Rd1#
- 2.Rd2#
- 2.Rd4#
- 1...Qb7
- 2.Rd1#
- 2.Rd2#
- 2.Rd4#
- 1...Bd2
- 2.Sxd2#
- 2.Rxd2#
- 2.Ra3#
- 2.Rb3#
- 2.Rde3#
- 2.Rd4#
- 1...Be3
- 2.Rd1#
- 2.Rd2#
- 2.Ra3#
- 2.Rb3#
- 2.Rdxe3#
- 2.Rd4#
- 1...b3
- 2.Rd1#
- 2.Rd2#
- 2.Rxb3#
- 2.Rde3#
- 2.Rd4#
- 1...Qxc4!
- threat
- 1.Qxb4+?
- 1...Qc4
- 2.Qxc4#
- 1...Qxb4!
- 1...Qc4
- 1.d6+?
- 1...Qc6
- 2.Rd1#
- 2.Rd2#
- 2.Ra3#
- 2.Rb3#
- 2.Rde3#
- 2.Rd4#
- 2.Qxb4#
- 1...Qd5
- 2.Rd1#
- 2.Rd2#
- 2.Ra3#
- 2.Rb3#
- 2.Rde3#
- 2.Rd4#
- 2.Rxd5#
- 2.Qxb4#
- 1...Rd5
- 2.Sxg5#
- 1...Rxa8!
- 1...Qc6
- 1.Ke1?
- Keys
- 1.Kd1!
- threat
- 2.Rde3#
- 1...Qxd3+
- 2.Qxd3#
- 1...Qa4+
- 2.Rb3#
- 1...Qxd5
- 2.Qxb4#
- 1...Rxf3
- 2.Rd4#
- 1...Rfxd5
- 2.Sxg5#
- 1...Rdxd5
- 2.Sd6#
- 1...Be3
- 2.Rdxe3#
- threat
- 1.Kd1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 9
- Sets
- Q(c);CHECK,OGATE,P_SPINQ(c),XR(E)::QAB1(B),XQ(c)
- R(d);N_GUARD,P_SPINR(d),XP(G)::S(I),XB(e)
- R(d);N_GUARD::S(I),XB(e)
- R(f);N_GUARD,P_SPINR(f),XP(G)::S(I)
- R(f);N_GUARD::S(I),XR(f)
- R(f);N_GUARD,XB(J)::S(I)
- R(f);N_GUARD::S(I)
- Tries
- Try
- K(C);N_SPINR(E),P-FLIGHT
- Threat
- QAB(B)+R(E),DCHECK
- Vars
- Q(c);OGATE,P_SPINQ(c),XR(E)::QAB1(B),XQ(c)
- R(d);SBLOCK,XR(F)::QAB(B)+R(E),DCHECK
- B(e);::QAB(B)+R(E),DCHECK,XB(e)
- Refutation
- B(e);CHECK
- Try
- S(H);N_SPINR(E)
- Threat
- DUALS(6)
- Refutation
- Q(c);P_PINR(E),XS(H)
- Try
- Q(B);CHECK,XP(a)
- Vars
- Q(c);N_GUARD,P_SPINQ(c)::QAR2(B),XQ(c)
- Refutation
- Q(c);N_PINR(E),XQ(B)
- Try
- P(G);CHECK
- Vars
- R(d);P_SPINR(d)::S(I),XB(e)
- Refutation
- R(f);XB(J)
- Try
- Actual
- K(C);N_SPINR(E),S_FLIGHT
- Threat
- QAB(B)+R(E),DCHECK
- Vars
- Q(c);CHECK,OGATE,P_SPINQ(c),XR(E)::QAB1(B),XQ(c)
- Q(c);CHECK,N_GUARD::QAB(B)+R(E)
- Q(c);N_GUARD,P_PINR(E),P_SPINQ(c),XP(G)::QAR(B),XP(a)
- R(d);SBLOCK,XR(F)::QAB(B)+R(E),DCHECK
- R(d);N_GUARD,P_PINR(E),P_SPINR(d),XP(G)::S(I),XB(e)
- R(f);N_GUARD,P_PINR(E),P_SPINR(f),XP(G)::S(I)
- B(e);::QAB(B)+R(E),DCHECK,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).