MESON Chess Problem Database
Problem Display
PID: 228860 (8/2N1pp2/pp2Bnp1/1n4R1/2pk4/2rP1Kp1/1Q1Rp3/2NbB3 w - - 0 1)
Ceder, Sven Ture
Schackvarlden, 1926
#2
9 + 13
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bc2
- 2.Sxe2#
- 1...Bb3
- 2.Sxe2#
- 1...Ba4
- 2.Sxe2#
- 1...Sa3
- 2.Qxb6#
- 1...Sd6
- 2.Qxb6#
- 1...Sa7
- 2.Qxb6#
- 1...Sxc7
- 2.Qxb6#
- 1...Se4
- 2.Rd5#
- 1...Sg4
- 2.Rd5#
- 1...Sd5
- 2.Rxd5#
- 1...Sh5
- 2.Rd5#
- 1...Sd7
- 2.Rd5#
- 1...Sh7
- 2.Rd5#
- 1...Se8
- 2.Rd5#
- 1...Sg8
- 2.Rd5#
- 1...g2
- 2.Bf2#
- 1...cxd3
- 2.Rxd3#
- 1...a5
- 2.Sxb5#
- 1...fxe6
- 2.Sxe6#
- 1...Bc2
- Tries
- 1.Kf4?
- threat
- 2.dxc4#
- 1...Sd5+
- 2.Rxd5#
- 1...cxd3
- 2.Rxd3#
- 1...fxe6
- 2.Sxe6#
- 1...Bc2
- 2.Sxe2#
- 1...Se4
- 2.Rd5#
- 2.dxe4#
- 1...Sh5+!
- threat
- 1.Sxa6?
- 1...cxd3
- 2.Rxd3#
- 1...Bc2
- 2.Sxe2#
- 1...Bb3
- 2.Sxe2#
- 1...Ba4
- 2.Sxe2#
- 1...Sa3
- 2.Qxb6#
- 1...Sd6
- 2.Qxb6#
- 1...Sa7
- 2.Qxb6#
- 1...Sc7
- 2.Qxb6#
- 1...Se4
- 2.Rd5#
- 1...Sg4
- 2.Rd5#
- 1...Sd5
- 2.Rxd5#
- 1...Sh5
- 2.Rd5#
- 1...Sd7
- 2.Rd5#
- 1...Sh7
- 2.Rd5#
- 1...Se8
- 2.Rd5#
- 1...Sg8
- 2.Rd5#
- 1...g2
- 2.Bf2#
- 1...fxe6!
- 1...cxd3
- 1.Bxf7?
- threat
- 2.Se6#
- 1...Sxc7
- 2.Qxb6#
- 1...cxd3
- 2.Rxd3#
- 1...e6
- 2.Sxe6#
- 1...e5!
- threat
- 1.Rc2?
- 1...Sxc7
- 2.Bxc3#
- 2.Qxc3#
- 2.Qxb6#
- 1...cxd3
- 2.Sb3#
- 1...fxe6
- 2.Sxe6#
- 1...Sd5
- 2.Rxd5#
- 1...a5
- 2.Sxb5#
- 1...Sa3
- 2.Bxc3#
- 2.Qxc3#
- 2.Qxb6#
- 1...Sd6
- 2.Bxc3#
- 2.Qxc3#
- 2.Qxb6#
- 1...Sa7
- 2.Bxc3#
- 2.Qxc3#
- 2.Qxb6#
- 1...Se4
- 2.Rd5#
- 1...Sg4
- 2.Rd5#
- 1...Sh5
- 2.Rd5#
- 1...Sd7
- 2.Rd5#
- 1...Sh7
- 2.Rd5#
- 1...Se8
- 2.Rd5#
- 1...Sg8
- 2.Rd5#
- 1...g2
- 2.Bf2#
- 1...Bxc2!
- 1...Sxc7
- 1.Qxc3+?
- 1...Sxc3
- 2.dxc4#
- 1...Kxc3!
- 1...Sxc3
- 1.Qxb5?
- threat
- 2.Qe5#
- 2.Qxb6#
- 1...Rxc1
- 2.Qe5#
- 1...cxd3
- 2.Qe5#
- 1...axb5
- 2.Sxb5#
- 1...Rc2
- 2.Qe5#
- 1...Ra3
- 2.Qxc4#
- 2.Qe5#
- 1...Rb3
- 2.Qxc4#
- 2.Qe5#
- 1...Se4
- 2.Rd5#
- 2.Qd5#
- 2.Qe5#
- 1...Sg4
- 2.Rxg4#
- 2.Rd5#
- 2.Qd7#
- 2.Qd5#
- 2.Qxb6#
- 1...Sd5
- 2.Rxd5#
- 2.Qxd5#
- 1...Sd7
- 2.Rg4#
- 2.Rd5#
- 2.Qxd7#
- 2.Qd5#
- 1...Rxd3+!
- threat
- 1.Kf4?
- Keys
- 1.Qb4!
- 1...Rxd3+
- 2.Rxd3#
- 1...Rxc1
- 2.dxc4#
- 1...Sxc7
- 2.Qxb6#
- 1...fxe6
- 2.Sxe6#
- 1...a5
- 2.Sxb5#
- 1...Rc2
- 2.Sb3#
- 1...Ra3
- 2.Qxc4#
- 1...Rb3
- 2.Qxc4#
- 1...Bc2
- 2.Sxe2#
- 1...Bb3
- 2.Sxe2#
- 1...Ba4
- 2.Sxe2#
- 1...Sa3
- 2.Qxb6#
- 1...Sd6
- 2.Qxb6#
- 1...Sa7
- 2.Qxb6#
- 1...Se4
- 2.Rd5#
- 1...Sg4
- 2.Rd5#
- 1...Sd5
- 2.Rxd5#
- 1...Sh5
- 2.Rd5#
- 1...Sd7
- 2.Rd5#
- 1...Sh7
- 2.Rd5#
- 1...Se8
- 2.Rd5#
- 1...Sg8
- 2.Rd5#
- 1...g2
- 2.Bf2#
- 1...Rxd3+
- 1.Qb4!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 1
- Sets
- B(a);N_GUARD::S(A),XP(b)
- S(g);OGATE::QAB(C),XP(i)
- S(g);OGATE,XS(I)::QAB(C),XP(i)
- S(j);N_GUARD::R1(G)
- S(j);N_GUARD::R1(G),XS(j)
- P(d);N_GUARD::B(B)
- P(e);OGATE,P_SPINP(e),XP(E)::R1(D),XP(e)
- P(h);N_GUARD::S(I),XS(g)
- P(m);XB(H)::S(I),XP(m)
- Tries
- Try
- K(F);N_SPINP(E),P-FLIGHT
- Threat
- R(D)+P(E),XP(e)
- Vars
- S(j);CHECK,N_GUARD::R1(G),XS(j)
- P(e);OGATE,P_SPINP(e),XP(E)::R1(D),XP(e)
- P(m);XB(H)::S(I),XP(m)
- B(a);N_GUARD::S(A),XP(b)
- Refutation
- S(j);CHECK
- Try
- S(I);XP(h)
- Vars
- P(e);OGATE,P_SPINP(e),XP(E)::R1(D),XP(e)
- B(a);N_GUARD::S(A),XP(b)
- S(g);OGATE::QAB(C),XP(i)
- S(j);N_GUARD::R1(G)
- S(j);N_GUARD::R1(G),XS(j)
- P(d);N_GUARD::B(B)
- Refutation
- P(m);XB(H)
- Try
- B(H);XP(m)
- Threat
- S(I)
- Vars
- S(g);OGATE,XS(I)::QAB(C),XP(i)
- P(e);OGATE,P_SPINP(e),XP(E)::R1(D),XP(e)
- P(l);::S(I),XP(l)
- Refutation
- P(l);
- Try
- R(D);
- Vars
- P(e);N_GUARD,SBLOCK,XP(E)::S(A)
- P(m);XB(H)::S(I),XP(m)
- S(j);N_GUARD::R1(G),XS(j)
- P(h);N_GUARD::S(I),XS(g)
- S(j);N_GUARD::R1(G)
- P(d);N_GUARD::B(B)
- Refutation
- B(a);XR(D)
- Try
- Q(C);CHECK,N_SPINP(E),XR(c)
- Vars
- S(g);SBLOCK,XQ(C)::R(D)+P(E),XP(e)
- Refutation
- K(f);S_FLIGHT,XQ(C)
- Try
- Q(C);N_PINR(c),XS(g)
- Threat
- DUALS(2)
- Vars
- R(c);N_PINP(E),XS(A)::QAB1(C)
- P(e);P_SPINP(e),XP(E)::QAB1(C)
- P(h);XQ(C)::S(I),XP(h)
- R(c);N_PINP(E)::QAB1(C)
- Refutation
- R(c);CHECK,P_SPINR(c),XP(E)
- Try
- Actual
- Q(C);N_PINR(c),P_PINP(e)
- Vars
- R(c);CHECK,OGATE,P_SPINR(c),XP(E)::R1(D),XR(c)
- R(c);N_PINP(E),XS(A)::R(D)+P(E),XP(e)
- S(g);OGATE,XS(I)::QAB(C),XP(i)
- P(m);XB(H)::S(I),XP(m)
- P(h);N_GUARD::S(I),XS(g)
- R(c);N_GUARD,N_PINP(E),S_CUTB(a)::S(A)
- R(c);N_GUARD::QAR1(C),XP(e)
- B(a);N_GUARD::S(A),XP(b)
- S(g);OGATE::QAB(C),XP(i)
- S(j);N_GUARD::R1(G)
- S(j);N_GUARD::R1(G),XS(j)
- P(d);N_GUARD::B(B)
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).