MESON Chess Problem Database
Problem Display
PID: 140025 (8/qPN1Qp2/2BP1KPN/p1p1ppB1/R1pk4/R2P2b1/b1P2r2/1r3n2 w - - 0 1)
Wong Kong Weng
Die Schwalbe, 1966
#2
13 + 13
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Sb5#
- 1...Rc1
- 2.Sb5#
- 1...Rd1
- 2.Sb5#
- 1...Re1
- 2.Sb5#
- 1...Rb3
- 2.Rxc4#
- 1...Rb5
- 2.Sxb5#
- 1...Rxc2
- 2.Sxf5#
- 1...Rd2
- 2.Sxf5#
- 1...Re2
- 2.Sxf5#
- 1...Rg2
- 2.Sxf5#
- 1...Rh2
- 2.Sxf5#
- 1...Rf4
- 2.Qxe5#
- 1...Bb3
- 2.Sb5#
- 1...Bf4
- 2.Sxf5#
- 1...Bh4
- 2.Qxe5#
- 1...f4
- 2.Sf5#
- 2.Qxe5#
- 1...fxg6
- 2.Se6#
- 1...Ra1
- Tries
- 1.Sxf7?
- threat
- 2.Se6#
- 1...Rb3
- 2.Rxc4#
- 1...Rf4
- 2.Qxe5#
- 1...Bb3
- 2.Sb5#
- 1...f4
- 2.Qxe5#
- 1...Bf4!
- threat
- 1.Bf4?
- threat
- 2.Sxf5#
- 2.Qxe5#
- 1...Rxf4
- 2.Qxe5#
- 1...Bxf4
- 2.Sxf5#
- 1...exf4
- 2.Sxf5#
- 2.Qe5#
- 1...fxg6
- 2.Se6#
- 2.Qxe5#
- 1...Rb3
- 2.Rxc4#
- 2.Qxe5#
- 1...Bb3
- 2.Sb5#
- 2.Qxe5#
- 1...Re1
- 2.Sxf5#
- 2.Sb5#
- 1...Re2
- 2.Sxf5#
- 1...Se3
- 2.Qxe5#
- 1...e4
- 2.Sxf5#
- 2.Qe5#
- 1...Bh4+!
- threat
- 1.Rb3?
- threat
- 2.Sb5#
- 2.Rxc4#
- 1...Qxb7
- 2.Rxc4#
- 1...Rxb3
- 2.Rxc4#
- 1...Rxc2
- 2.Sxf5#
- 2.Sb5#
- 1...Bxb3
- 2.Sb5#
- 1...Rf4
- 2.Qxe5#
- 1...Bf4
- 2.Sxf5#
- 1...f4
- 2.Sf5#
- 2.Qxe5#
- 1...Qb6
- 2.Rxc4#
- 1...Sd2
- 2.Sb5#
- 1...Se3
- 2.Sb5#
- 1...Qa6!
- threat
- 1.Qe6?
- threat
- 2.Qd5#
- 1...fxe6
- 2.Sxe6#
- 1...Rb3
- 2.Rxc4#
- 2.Qxc4#
- 1...Rf4
- 2.Qxe5#
- 1...Bb3
- 2.Sb5#
- 1...Bf4
- 2.Sxf5#
- 1...f4
- 2.Sf5#
- 2.Qxe5#
- 1...Se3!
- threat
- 1.Qxf7?
- threat
- 2.Se6#
- 2.Qd5#
- 1...Rb3
- 2.Rxc4#
- 2.Qxc4#
- 1...Bb3
- 2.Sb5#
- 1...Bf4
- 2.Sxf5#
- 1...f4
- 2.Sf5#
- 1...Se3
- 2.Se6#
- 1...Rf4!
- threat
- 1.Sxf7?
- Keys
- 1.gxf7!
- threat
- 2.Se6#
- 1...Rb3
- 2.Rxc4#
- 1...Rf4
- 2.Qxe5#
- 1...Bb3
- 2.Sb5#
- 1...Bf4
- 2.Sxf5#
- 1...f4
- 2.Sf5#
- 2.Qxe5#
- threat
- 1.gxf7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 12
- Sets
- R(a);N_GUARD::S(L)
- R(a);S_CUTB(c)::R1(D),XP(f)
- R(a);N_GUARD::S(L),XR(a)
- R(d);N_GUARD,XP(A)::S(J),XP(k)
- R(d);N_GUARD::S(J),XP(k)
- R(d);S_CUTB(e)::QAB1(M),XP(j)
- B(c);S_CUTR(a)::S(L)
- B(e);S_CUTR(d)::S(J),XP(k)
- B(e);N_GUARD,P_PINB(E)::QAB1(M),XP(j)
- P(m);N_GUARD,XP(I)::S(L)
- Tries
- Try
- S(J);XP(m)
- Threat
- S(L)
- Vars
- R(a);S_CUTB(c)::R1(D),XP(f)
- R(d);S_CUTB(e)::QAB1(M),XP(j)
- B(c);S_CUTR(a)::S(L)
- P(k);S_CUTB(e)::QAB1(M),XP(j)
- Refutation
- B(e);
- Try
- B(E);
- Threat
- DUALS(2)
- Vars
- R(d);XB(E)::QAB1(M),XP(j)
- B(e);XB(E)::S(J),XP(k)
- R(d);::S(J),XP(k)
- S(b);::QAB1(M),XP(j)
- Refutation
- B(e);CHECK
- Try
- R(B);
- Threat
- DUALS(2)
- Vars
- Q(l);XP(K)::R1(D),XP(f)
- R(a);XR(B)::R1(D),XP(f)
- B(c);XR(B)::S(L)
- R(d);S_CUTB(e)::QAB1(M),XP(j)
- B(e);S_CUTR(d)::S(J),XP(k)
- Q(l);::R1(D),XP(f)
- S(b);::S(L)
- Refutation
- Q(l);
- Try
- Q(M);
- Threat
- QAR1(M)
- Vars
- P(m);XQ(M)::S(L),XP(m)
- R(d);S_CUTB(e)::QAB1(M),XP(j)
- B(c);S_CUTR(a)::S(L)
- B(e);S_CUTR(d)::S(J),XP(k)
- Refutation
- S(b);
- Try
- Q(M);XP(m)
- Threat
- DUALS(2)
- Vars
- B(c);S_CUTR(a)::S(L)
- B(e);S_CUTR(d)::S(J),XP(k)
- P(k);S_CUTR(d)::S(J)
- S(b);::S(L)
- Refutation
- R(d);
- Try
- Actual
- P(I);XP(m)
- Threat
- S(L)
- Vars
- R(a);S_CUTB(c)::R1(D),XP(f)
- R(d);S_CUTB(e)::QAB1(M),XP(j)
- B(c);S_CUTR(a)::S(L)
- B(e);S_CUTR(d)::S(J),XP(k)
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).