MESON Chess Problem Database
Problem Display
PID: 6322 (1BK3N1/3R2p1/N3k1n1/5p2/2P1r3/4b2p/B1Q3bP/6R1 w - - 0 1)
Nanning, Frederik Willem
6th HM., Shakhmaty, 1928
#2
10 + 8
SOLUTION
- SOUND
- Sets
- 1...Rd4
- 2.Sc5#
- 1...Re5
- 2.Sc7#
- 1...Bf1
- 2.Rxg6#
- 1...Bh1
- 2.Rxg6#
- 1...Bf3
- 2.Rxg6#
- 1...Bc1
- 2.Sc5#
- 1...Bd2
- 2.Sc5#
- 1...Bd4
- 2.c5#
- 1...Bf4
- 2.Sc5#
- 1...Bc5
- 2.Sxc5#
- 1...Bg5
- 2.Sc5#
- 1...Bh6
- 2.Sc5#
- 1...Sf4
- 2.Re7#
- 1...Sh4
- 2.Re7#
- 1...Se5
- 2.Sc7#
- 2.Re7#
- 1...Se7+
- 2.Rxe7#
- 1...Sf8
- 2.Re7#
- 1...Sh8
- 2.Re7#
- 1...Rd4
- Tries
- 1.Qd1?
- threat
- 2.Qd5#
- 2.Qd6#
- 1...Se7+
- 2.Rxe7#
- 1...f4
- 2.Qg4#
- 2.Qd5#
- 1...Rd4
- 2.Sc5#
- 1...Rf4
- 2.Qd6#
- 1...Rg4
- 2.Qd6#
- 1...Rh4
- 2.Qd6#
- 1...Re5
- 2.Sc7#
- 2.Qd6#
- 1...Bd2
- 2.Sc5#
- 1...Bd4
- 2.c5#
- 1...Bf4
- 2.Sc5#
- 2.Qd5#
- 1...Bc5
- 2.Sxc5#
- 2.Qd5#
- 1...Sf4
- 2.Re7#
- 2.Qd6#
- 1...Rxc4+!
- threat
- 1.Qd3?
- threat
- 2.Qd5#
- 2.Qd6#
- 1...Se7+
- 2.Rxe7#
- 1...f4
- 2.Qd5#
- 1...Rd4
- 2.Sc5#
- 1...Rf4
- 2.Qd6#
- 1...Rg4
- 2.Qd6#
- 1...Rh4
- 2.Qd6#
- 1...Re5
- 2.Sc7#
- 2.Qd6#
- 1...Bd4
- 2.c5#
- 1...Bf4
- 2.Sc5#
- 2.Qd5#
- 1...Bc5
- 2.Sxc5#
- 2.Qd5#
- 1...Sf4
- 2.Re7#
- 2.Qd6#
- 1...Rxc4+!
- threat
- 1.Qxe4+?
- 1...Bxe4
- 2.Rxg6#
- 1...Se5
- 2.Sc7#
- 2.Re7#
- 2.Qxe5#
- 2.c5#
- 1...fxe4!
- 1...Bxe4
- 1.Qb2?
- threat
- 2.Sc7#
- 1...Se7+
- 2.Rxe7#
- 1...Rd4
- 2.Sc5#
- 1...Bd4
- 2.c5#
- 1...Bf4
- 2.Sc5#
- 1...Bb6
- 2.Qxb6#
- 1...f4!
- threat
- 1.Qd2?
- threat
- 2.Qd5#
- 2.Qd6#
- 1...Se7+
- 2.Rxe7#
- 1...Bxd2
- 2.Sc5#
- 1...f4
- 2.Qd5#
- 1...Rd4
- 2.Sc5#
- 1...Rf4
- 2.Qd6#
- 1...Rg4
- 2.Qd6#
- 1...Rh4
- 2.Qd6#
- 1...Re5
- 2.Sc7#
- 2.Qd6#
- 1...Bd4
- 2.c5#
- 1...Bf4
- 2.Sc5#
- 2.Qd5#
- 1...Bc5
- 2.Sxc5#
- 2.Qd5#
- 1...Sf4
- 2.Re7#
- 2.Qd6#
- 1...Rxc4+!
- threat
- 1.Qxg2?
- threat
- 2.Qxg6#
- 1...Rxc4+
- 2.Bxc4#
- 2.Qc6#
- 1...Se7+
- 2.Rxe7#
- 1...Rg4
- 2.Qd5#
- 2.Qc6#
- 1...Bd4
- 2.c5#
- 1...Bg5
- 2.Sc5#
- 1...Sf4
- 2.Re7#
- 1...Sh4
- 2.Re7#
- 1...Se5
- 2.Sc7#
- 2.Re7#
- 1...Sf8
- 2.Re7#
- 1...Sh8
- 2.Re7#
- 1...hxg2!
- threat
- 1.Qd1?
- Keys
- 1.Qe2!
- 1...Rxc4+
- 2.Sc5#
- 1...Se7+
- 2.Rxe7#
- 1...Bxg1
- 2.c5#
- 1...f4
- 2.Qg4#
- 1...Rd4
- 2.Sc5#
- 1...Rf4
- 2.Sc5#
- 1...Rg4
- 2.Sc5#
- 1...Rh4
- 2.Sc5#
- 1...Re5
- 2.Sc7#
- 1...Bf1
- 2.Rxg6#
- 1...Bh1
- 2.Rxg6#
- 1...Bf3
- 2.Rxg6#
- 1...Bc1
- 2.Sc5#
- 2.c5#
- 1...Bd2
- 2.Sc5#
- 2.c5#
- 1...Bf2
- 2.c5#
- 1...Bd4
- 2.c5#
- 1...Bf4
- 2.Sc5#
- 2.c5#
- 1...Bc5
- 2.Sxc5#
- 1...Bg5
- 2.Sc5#
- 2.c5#
- 1...Bb6
- 2.c5#
- 1...Bh6
- 2.Sc5#
- 2.c5#
- 1...Ba7
- 2.c5#
- 1...Sf4
- 2.Re7#
- 1...Sh4
- 2.Re7#
- 1...Se5
- 2.Sc7#
- 2.Re7#
- 1...Sf8
- 2.Re7#
- 1...Sh8
- 2.Re7#
- 1...Rxc4+
- 1.Qe2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 5
- Sets
- R(d);S_CUTB(b)::S(F)
- R(d);SBLOCK::S(F)
- B(a);OGATE::R(A),XS(g)
- B(b);N_GUARD::S(F)
- B(b);S_CUTR(d)::B(B)+P(E)
- B(b);N_GUARD::S(F),XB(b)
- S(g);N_GUARD::R1(G)
- S(g);CHECK,N_GUARD::R1(G),XS(g)
- Tries
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- S(g);CHECK,N_GUARD::R1(G),XS(g)
- R(d);S_CUTB(b)::S(F)
- R(d);::QAR1(C)
- B(b);N_GUARD::S(F)
- B(b);S_CUTR(d)::B(B)+P(E)
- Refutation
- R(d);CHECK,P_SPINR(d),XP(E)
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- S(g);CHECK,N_GUARD::R1(G),XS(g)
- P(e);::QAB1(C)
- R(d);S_CUTB(b)::S(F)
- R(d);::QAR1(C)
- B(b);S_CUTR(d)::B(B)+P(E)
- Refutation
- R(d);CHECK,P_SPINR(d),XP(E)
- Try
- Q(C);CHECK,XR(d)
- Vars
- B(a);OGATE,XQ(C)::R(A),XS(g)
- Refutation
- P(e);XQ(C)
- Try
- Q(C);
- Threat
- S(F)
- Vars
- S(g);CHECK,N_GUARD::R1(G),XS(g)
- R(d);S_CUTB(b)::S(F)
- B(b);S_CUTR(d)::B(B)+P(E)
- B(b);N_GUARD::S(F)
- B(b);N_GUARD::QAR(C),XB(b)
- Refutation
- P(e);
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- S(g);CHECK,N_GUARD::R1(G),XS(g)
- B(b);N_GUARD,XQ(C)::S(F)
- P(e);::QAB1(C)
- R(d);S_CUTB(b)::S(F)
- R(d);::QAR1(C)
- B(b);S_CUTR(d)::B(B)+P(E)
- Refutation
- R(d);CHECK,P_SPINR(d),XP(E)
- Try
- Q(C);XB(a)
- Threat
- QAR2(C),XS(g)
- Vars
- S(g);CHECK,N_GUARD::R1(G),XS(g)
- B(b);S_CUTR(d)::B(B)+P(E)
- B(b);N_GUARD::S(F)
- S(g);N_GUARD::R1(G)
- Refutation
- P(c);XQ(C)
- Try
- Actual
- Q(C);
- Vars
- R(d);CHECK,P_SPINB(b),P_SPINR(d),XP(E)::S(F)
- S(g);CHECK,N_GUARD::R1(G),XS(g)
- B(b);P_SPINR(d),XR(A)::B(B)+P(E)
- P(e);OGATEB::QAB(C)
- R(d);P_SPINB(b)::S(F)
- R(d);SBLOCK::S(F)
- B(a);OGATE::R(A),XS(g)
- B(b);P_SPINR(d)::B(B)+P(E)
- B(b);N_GUARD,P_SPINR(d)::S(F),XB(b)
- S(g);N_GUARD::R1(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).