MESON Chess Problem Database
Problem Display
PID: 12004 (4k3/1N2p1K1/1N6/1p4B1/pr6/Q3Rb2/3pqRn1/3Bn3 w - - 0 1)
Nemmer, Max F
The Problemist, 1973
#2
8 + 10
SOLUTION
- SOUND
- Sets
- 1...Qxd1
- 2.Rxe7#
- 1...Qf1
- 2.Rxe7#
- 1...Qd3
- 2.Rxe7#
- 1...Qc4
- 2.Rxe7#
- 1...Qxf2
- 2.Rxe7#
- 1...Rb1
- 2.Qxe7#
- 1...Rb2
- 2.Qxe7#
- 1...Rb3
- 2.Qxe7#
- 1...Rc4
- 2.Qxe7#
- 1...Rd4
- 2.Qxe7#
- 1...Rf4
- 2.Qxe7#
- 1...Rg4
- 2.Qxe7#
- 1...Rh4
- 2.Qxe7#
- 1...Be4
- 2.Rf8#
- 1...Bg4
- 2.Rf8#
- 1...Bd5
- 2.Rf8#
- 1...Bh5
- 2.Rf8#
- 1...Bc6
- 2.Rf8#
- 1...Bxb7
- 2.Rf8#
- 1...e5
- 2.Sd6#
- 1...e6
- 2.Sd6#
- 1...Qxd1
- Tries
- 1.Bxe2?
- threat
- 2.Rxe7#
- 1...Bxb7
- 2.Rf8#
- 1...Re4
- 2.Bxb5#
- 1...Be4
- 2.Rf8#
- 1...e5
- 2.Sd6#
- 2.Rxe5#
- 1...e6
- 2.Sd6#
- 2.Rxe6#
- 1...Sxe3!
- threat
- 1.Qxb4?
- threat
- 2.Qxe7#
- 1...e5
- 2.Sd6#
- 2.Qe7#
- 2.Qf8#
- 1...e6
- 2.Sd6#
- 2.Qe7#
- 2.Qf8#
- 1...Qxe3!
- threat
- 1.Qd3?
- threat
- 2.Qg6#
- 2.Qd7#
- 2.Qd8#
- 1...Qxd3
- 2.Rxe7#
- 1...Bxb7
- 2.Rf8#
- 2.Qd7#
- 1...Re4
- 2.Qd7#
- 2.Qd8#
- 1...Rd4
- 2.Qg6#
- 1...Rf4
- 2.Qd7#
- 2.Qd8#
- 1...Be4
- 2.Rf8#
- 2.Qd7#
- 2.Qd8#
- 1...Bg4
- 2.Rf8#
- 2.Qg6#
- 2.Qd8#
- 1...Bd5
- 2.Rf8#
- 1...Bh5
- 2.Rf8#
- 2.Qd7#
- 2.Qd8#
- 1...Bc6
- 2.Rf8#
- 2.Qg6#
- 2.Qd8#
- 1...Sf4
- 2.Qd7#
- 2.Qd8#
- 1...Sh4
- 2.Qd7#
- 2.Qd8#
- 1...Sxd3!
- threat
- 1.Bxe2?
- Keys
- 1.Bb3!
- threat
- 2.Bf7#
- 1...Rxb3
- 2.Qxe7#
- 1...Bxb7
- 2.Rf8#
- 1...axb3
- 2.Qa8#
- 1...Qc4
- 2.Rxe7#
- 1...Rc4
- 2.Qxe7#
- 1...Rf4
- 2.Qxe7#
- 1...Bd5
- 2.Rf8#
- 1...Bh5
- 2.Rf8#
- 1...e6
- 2.Sd6#
- threat
- 1.Bb3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 13
- Sets
- Q(c);N_GUARD,XB(A)::R1(D),XP(i)
- Q(c);N_GUARD::R1(D),XP(i)
- Q(c);N_GUARD,XR(B)::R1(D),XP(i)
- R(g);OGATE::QAR1(C),XP(i)
- R(g);OGATE,P_PINB(E)::QAR1(C),XP(i)
- B(e);N_SPINP(i),OGATE::R1(B)
- B(e);OGATE::R1(B)
- B(e);OGATE,XS(G)::R1(B)
- P(i);::S(G)
- Tries
- Try
- B(A);XQ(c)
- Threat
- R1(D),XP(i)
- Vars
- B(e);OGATE,XS(G)::R1(B)
- R(g);N_GUARD,N_SPINP(i),S_CUTB(e)::B(A),XP(h)
- B(e);N_SPINP(i),OGATE::R1(B)
- Refutation
- S(d);N_SPINP(i),XR(D)
- Try
- Q(C);XR(g)
- Threat
- QAR1(C),XP(i)
- Refutation
- Q(c);N_SPINP(i),XR(D)
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- Q(c);N_GUARD,XQ(C)::R1(D),XP(i)
- R(g);::QAB(C)
- B(e);OGATE::R1(B)
- Refutation
- S(a);XQ(C)
- Try
- Actual
- B(A);
- Threat
- B(A)
- Vars
- R(g);OGATE,XB(A)::QAR1(C),XP(i)
- B(e);OGATE,XS(G)::R1(B)
- P(f);OGATE,XB(A)::QAR(C)
- Q(c);N_GUARD::R1(D),XP(i)
- R(g);OGATE::QAR1(C),XP(i)
- B(e);OGATE::R1(B)
- P(i);::S(G)
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).