MESON Chess Problem Database
Problem Display
PID: 47069 (8/BN2Q3/b7/r3pp2/r3kN1p/b4pP1/BpP2P2/1K1R4 w - - 0 1)
Simadhinata, Januarta (Siem Giok Liam)
The Problemist, 1979
#2
10 + 10
SOLUTION
- SOUND
- Sets
- 1...Rb4
- 2.Sd6#
- 1...Rc4
- 2.Re1#
- 1...Rd4
- 2.Rxd4#
- 1...Rb5
- 2.Re1#
- 1...Rc5
- 2.Sd6#
- 1...Rd5
- 2.Bxd5#
- 1...Bb4
- 2.Rd4#
- 1...Bc5
- 2.Bd5#
- 1...Bd6
- 2.Sxd6#
- 1...Bd3
- 2.cxd3#
- 1...Bc4
- 2.Rd4#
- 1...Bb5
- 2.Bd5#
- 1...Bxb7
- 2.Re1#
- 1...Rb4
- Tries
- 1.Sd5?
- threat
- 2.Sc3#
- 2.Sf6#
- 1...Rxd5
- 2.Bxd5#
- 1...Bxe7
- 2.Sc3#
- 1...f4
- 2.Qh7#
- 1...Rc4
- 2.Sf6#
- 1...Rc5
- 2.Sf6#
- 2.Sd6#
- 1...Bb4
- 2.Sf6#
- 2.Rd4#
- 1...hxg3!
- threat
- 1.Sxa5?
- threat
- 2.Bd5#
- 1...Rxa5
- 2.Rd4#
- 1...Rc4
- 2.Re1#
- 1...Rd4
- 2.Rxd4#
- 1...Bc4
- 2.Rd4#
- 1...Bb7
- 2.Re1#
- 2.Qxb7#
- 1...hxg3!
- threat
- 1.Sc5+?
- 1...Bxc5
- 2.Bd5#
- 1...Rxc5!
- 1...Bxc5
- 1.Bc5?
- threat
- 2.Sd6#
- 2.Bd5#
- 1...Rxc5
- 2.Sd6#
- 1...Bxc5
- 2.Bd5#
- 1...Bxb7
- 2.Re1#
- 2.Qxb7#
- 1...Rc4
- 2.Sd6#
- 2.Re1#
- 1...Rd4
- 2.Rxd4#
- 1...Bc4
- 2.Sd6#
- 2.Rd4#
- 1...hxg3!
- threat
- 1.Rd3?
- threat
- 2.Re3#
- 1...Bxd3
- 2.cxd3#
- 1...Rc5
- 2.Sd6#
- 1...Bc5
- 2.Bd5#
- 1...hxg3!
- threat
- 1.Rd5?
- threat
- 2.Qxe5#
- 1...Rxd5
- 2.Bxd5#
- 1...Bd6
- 2.Sxd6#
- 1...Bxe7!
- threat
- 1.Qxa3?
- threat
- 2.Sd6#
- 2.Qe3#
- 1...Rxa3
- 2.Sd6#
- 1...Bxb7
- 2.Re1#
- 2.Qd3#
- 2.Qe3#
- 1...hxg3
- 2.Qe3#
- 1...Rd4
- 2.Qe3#
- 1...Rd5
- 2.Bxd5#
- 2.Qe3#
- 1...Bd3
- 2.Sd6#
- 2.Qxd3#
- 2.cxd3#
- 1...exf4!
- threat
- 1.Qb4+?
- 1...Rxb4
- 2.Sd6#
- 1...Bc4
- 2.Sd6#
- 2.Re1#
- 1...Bxb4!
- 1...Rxb4
- 1.Qc5?
- threat
- 2.Sd6#
- 2.Bd5#
- 2.Qe3#
- 1...Rxc5
- 2.Sd6#
- 1...Bxc5
- 2.Bd5#
- 1...Bxb7
- 2.Re1#
- 2.Qe3#
- 1...hxg3
- 2.Qe3#
- 1...exf4
- 2.Sd6#
- 1...Rc4
- 2.Sd6#
- 2.Re1#
- 2.Qe3#
- 1...Bc4
- 2.Sd6#
- 2.Qe3#
- 1...Rd4!
- threat
- 1.c4?
- threat
- 2.Re1#
- 2.Rd4#
- 1...Rxc4
- 2.Re1#
- 1...Bxe7
- 2.Re1#
- 1...Bxc4
- 2.Rd4#
- 1...hxg3
- 2.Rd4#
- 1...Rc5
- 2.Sd6#
- 1...Rd5
- 2.Re1#
- 1...Bb4
- 2.Rd4#
- 1...Bc5!
- threat
- 1.Sd5?
- Keys
- 1.Bc4!
- threat
- 2.Re1#
- 2.Rd4#
- 1...Rxc4
- 2.Re1#
- 1...Bxe7
- 2.Re1#
- 1...Bxc4
- 2.Rd4#
- 1...hxg3
- 2.Rd4#
- 1...Rc5
- 2.Sd6#
- 1...Rd5
- 2.Bxd5#
- 2.Re1#
- 1...Bb4
- 2.Rd4#
- 1...Bc5
- 2.Bd5#
- threat
- 1.Bc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 8
- Sets
- R(d);S_CUTB(b)::S(I)
- R(d);S_CUTB(j)::R(B)
- R(d);N_GUARD::R1(B),XR(d)
- R(g);S_CUTB(j)::R(B)
- R(g);S_CUTB(b)::S(I)
- R(g);N_GUARD::B(C),XR(g)
- B(b);S_CUTR(d)::R1(B)
- B(b);S_CUTR(g)::B(C)
- B(b);N_GUARD::S(I),XB(b)
- B(j);OGATE,P_PINP(D)::P(D),XB(j)
- B(j);S_CUTR(d)::R1(B)
- B(j);S_CUTR(g)::B(C)
- B(j);N_GUARD,XS(I)::R(B)
- Tries
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- R(g);OGATE,XS(G)::B(C),XR(g)
- B(b);N_SPINP(h),XQ(J)::S(G)
- P(i);OGATEB::QAB(J)
- R(d);::S(G)
- Refutation
- P(f);XP(F)
- Try
- S(I);XR(g)
- Threat
- B(C)
- Vars
- R(d);N_GUARD,XS(I)::R1(B)
- R(d);S_CUTB(j)::R(B)
- R(d);N_GUARD::R1(B),XR(d)
- B(j);S_CUTR(d)::R1(B)
- Refutation
- P(f);XP(F)
- Try
- S(I);CHECK
- Vars
- B(b);XS(I)::B(C)
- Refutation
- R(g);XS(I)
- Try
- B(H);
- Threat
- DUALS(2)
- Vars
- R(g);XB(H)::S(I)
- B(b);XB(H)::B(C)
- R(d);N_GUARD::R1(B),XR(d)
- Refutation
- P(f);XP(F)
- Try
- R(B);
- Threat
- R1(B)
- Vars
- B(j);OGATE,P_PINP(D),XR(B)::P(D),XB(j)
- R(g);S_CUTB(b)::S(I)
- B(b);S_CUTR(g)::B(C)
- Refutation
- P(f);XP(F)
- Try
- R(B);
- Threat
- QAR1(J),XP(h)
- Vars
- R(g);OGATE,XR(B)::B(C),XR(g)
- B(b);N_GUARD::S(I),XB(b)
- Refutation
- B(b);N_SPINP(h),XQ(J)
- Try
- Q(J);N_PINP(h),XB(b)
- Threat
- DUALS(2)
- Vars
- R(d);XQ(J)::S(I)
- P(f);XP(F)::QAR1(J)
- R(d);::QAR1(J)
- Refutation
- P(h);XS(G)
- Try
- Q(J);CHECK,N_PINP(h)
- Vars
- R(d);XQ(J)::S(I)
- Refutation
- B(b);XQ(J)
- Try
- Q(J);N_PINP(h)
- Threat
- DUALS(3)
- Vars
- R(g);XQ(J)::S(I)
- B(b);XQ(J)::B(C)
- P(f);XP(F)::QAR1(J)
- P(h);XS(G)::S(I)
- Refutation
- R(d);
- Try
- P(D);
- Threat
- DUALS(2)
- Vars
- R(d);XP(D)::R(B)
- B(b);N_SPINP(h),XQ(J)::R(B)
- B(j);XP(D)::R1(B)
- P(f);XP(F)::R1(B)
- R(g);S_CUTB(b)::S(I)
- R(g);::R(B)
- B(b);::R1(B)
- Refutation
- B(b);
- Try
- Actual
- B(C);
- Threat
- DUALS(2)
- Vars
- R(d);XB(C)::R(B)
- B(b);N_SPINP(h),XQ(J)::R(B)
- B(j);XB(C)::R1(B)
- P(f);XP(F)::R1(B)
- R(g);S_CUTB(b)::S(I)
- B(b);::R1(B)
- B(b);S_CUTR(g)::B(C)
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).