MESON Chess Problem Database
Problem Display
PID: 207080 (1Q1R4/8/6K1/2PPp1B1/1p1kP3/1p1N4/2n5/nBR1N3 w - - 0 1)
Lin, Tien Ling
Il Problema, 1959
#2
11 + 6
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Kc3
- 2.Qxb4#
- 1...Kc4
- 2.Qxb4#
- 1...Kxe4
- 2.Qxe5#
- 1...Sxe1
- 2.Qxe5#
- 2.Qxb4#
- 1...Sa3
- 2.Qxe5#
- 1...Se3
- 2.Qxe5#
- 1...Kc3
- Tries
- 1.Kh5?
- 1...Kc3
- 2.Qxb4#
- 1...Kc4
- 2.Qxb4#
- 1...Kxe4
- 2.Qxe5#
- 1...Sxe1
- 2.Qxe5#
- 2.Qxb4#
- 1...Sa3
- 2.Qxe5#
- 1...Se3
- 2.Qxe5#
- 1...b2!
- 1...Kc3
- 1.Kf6?
- 1...Kc3
- 2.Qxb4#
- 1...Kc4
- 2.Qxb4#
- 1...Kxe4
- 2.Qxe5#
- 1...Sxe1
- 2.Qxe5#
- 2.Qxb4#
- 1...Sa3
- 2.Qxe5#
- 1...Se3
- 2.Qxe5#
- 1...b2!
- 1...Kc3
- 1.Kh6?
- 1...Kc3
- 2.Qxb4#
- 1...Kc4
- 2.Qxb4#
- 1...Kxe4
- 2.Qxe5#
- 1...Sxe1
- 2.Qxe5#
- 2.Qxb4#
- 1...Sa3
- 2.Qxe5#
- 1...Se3
- 2.Qxe5#
- 1...b2!
- 1...Kc3
- 1.Kf7?
- 1...Kc3
- 2.Qxb4#
- 1...Kc4
- 2.Qxb4#
- 1...Kxe4
- 2.Qxe5#
- 1...Sxe1
- 2.Qxe5#
- 2.Qxb4#
- 1...Sa3
- 2.Qxe5#
- 1...Se3
- 2.Qxe5#
- 1...b2!
- 1...Kc3
- 1.Kg7?
- 1...Kc3
- 2.Qxb4#
- 1...Kc4
- 2.Qxb4#
- 1...Kxe4
- 2.Qxe5#
- 1...Sxe1
- 2.Qxe5#
- 2.Qxb4#
- 1...Sa3
- 2.Qxe5#
- 1...Se3
- 2.Qxe5#
- 1...b2!
- 1...Kc3
- 1.Kh7?
- 1...Kc3
- 2.Qxb4#
- 1...Kc4
- 2.Qxb4#
- 1...Kxe4
- 2.Qxe5#
- 1...Sxe1
- 2.Qxe5#
- 2.Qxb4#
- 1...Sa3
- 2.Qxe5#
- 1...Se3
- 2.Qxe5#
- 1...b2!
- 1...Kc3
- 1.Bxc2?
- threat
- 2.Qxb4#
- 1...Kc3
- 2.Qxb4#
- 1...Kc4
- 2.Qxb4#
- 1...Kxe4
- 2.Qxe5#
- 2.Qxb4#
- 1...Sxc2!
- threat
- 1.Bd2?
- 1...Kc4
- 2.Qxb4#
- 1...Kxe4
- 2.Qxe5#
- 1...Sxe1
- 2.Qxe5#
- 2.Qxb4#
- 1...Sa3
- 2.Qxe5#
- 1...Se3
- 2.Qxe5#
- 1...b2!
- 1...Kc4
- 1.Be3+?
- 1...Kc3
- 2.Qxb4#
- 1...Kc4
- 2.Qxb4#
- 1...Kxe4
- 2.Qxe5#
- 1...Sxe3
- 2.Qxe5#
- 1...Kxe3!
- 1...Kc3
- 1.Bh6?
- 1...Kc3
- 2.Qxb4#
- 1...Kc4
- 2.Qxb4#
- 1...Kxe4
- 2.Qxe5#
- 1...Sxe1
- 2.Qxe5#
- 2.Qxb4#
- 1...Sa3
- 2.Qxe5#
- 1...Se3
- 2.Qxe5#
- 1...b2!
- 1...Kc3
- 1.Rxc2?
- threat
- 2.Qxe5#
- 2.Qxb4#
- 1...Kxe4
- 2.Rc4#
- 2.Qxe5#
- 2.Qxb4#
- 1...bxc2
- 2.Qxb4#
- 1...Sxc2!
- threat
- 1.Rd7?
- 1...Kc3
- 2.Qxb4#
- 1...Kc4
- 2.Qxb4#
- 1...Kxe4
- 2.Qxe5#
- 1...Sxe1
- 2.Qxe5#
- 2.Qxb4#
- 1...Sa3
- 2.Qxe5#
- 1...Se3
- 2.Qxe5#
- 1...b2!
- 1...Kc3
- 1.Rc8?
- 1...Kc3
- 2.Qxb4#
- 1...Kc4
- 2.Qxb4#
- 1...Kxe4
- 2.Qxe5#
- 1...Sxe1
- 2.Qxe5#
- 2.Qxb4#
- 1...Sa3
- 2.Qxe5#
- 1...Se3
- 2.Qxe5#
- 1...b2!
- 1...Kc3
- 1.Re8?
- 1...Kc3
- 2.Qxb4#
- 1...Kc4
- 2.Qxb4#
- 1...Kxe4
- 2.Qxe5#
- 1...Sxe1
- 2.Qxe5#
- 2.Qxb4#
- 1...Sa3
- 2.Qxe5#
- 1...Se3
- 2.Qxe5#
- 1...b2!
- 1...Kc3
- 1.Rf8?
- 1...Kc3
- 2.Qxb4#
- 1...Kc4
- 2.Qxb4#
- 1...Kxe4
- 2.Qxe5#
- 1...Sxe1
- 2.Qxe5#
- 2.Qxb4#
- 1...Sa3
- 2.Qxe5#
- 1...Se3
- 2.Qxe5#
- 1...b2!
- 1...Kc3
- 1.Rg8?
- 1...Kc3
- 2.Qxb4#
- 1...Kc4
- 2.Qxb4#
- 1...Kxe4
- 2.Qxe5#
- 1...Sxe1
- 2.Qxe5#
- 2.Qxb4#
- 1...Sa3
- 2.Qxe5#
- 1...Se3
- 2.Qxe5#
- 1...b2!
- 1...Kc3
- 1.Rh8?
- 1...Kc3
- 2.Qxb4#
- 1...Kc4
- 2.Qxb4#
- 1...Kxe4
- 2.Qxe5#
- 1...Sxe1
- 2.Qxe5#
- 2.Qxb4#
- 1...Sa3
- 2.Qxe5#
- 1...Se3
- 2.Qxe5#
- 1...b2!
- 1...Kc3
- 1.c6?
- 1...Kc3
- 2.Qxb4#
- 1...Kc4
- 2.Qxb4#
- 1...Kxe4
- 2.Qxe5#
- 1...Sxe1
- 2.Qxe5#
- 2.Qxb4#
- 1...Sa3
- 2.Qxe5#
- 1...Se3
- 2.Qxe5#
- 1...b2!
- 1...Kc3
- 1.Kh5?
- Keys
- 1.Sb2!
- 1...Kc3
- 2.Qxe5#
- 1...Kxe4
- 2.Qxb4#
- 1...Kxc5
- 2.Be3#
- 1...Sxe1
- 2.Rc4#
- 2.Qxb4#
- 1...Sa3
- 2.Sf3#
- 1...Se3
- 2.Sf3#
- 1...Kc3
- 1.Sb2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 4
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- K(e);P_SPINS(b),S_FLIGHT::QAB1(J),XP(d)
- K(e);P-FLIGHT,P_SPINS(b)::QAR1(J),XP(d)
- K(e);P-FLIGHT,XP(E)::QAR1(J),XP(f)
- S(b);::QAB1(J),XP(f)
- Tries
- Try
- K(I);S_FLIGHT
- Vars
- K(e);P_SPINS(b),S_FLIGHT::QAB1(J),XP(d)
- K(e);P-FLIGHT,P_SPINS(b)::QAR1(J),XP(d)
- K(e);P-FLIGHT,XP(E)::QAR1(J),XP(f)
- S(b);::QAB1(J),XP(f)
- Refutation
- P(c);
- Try
- K(I);P-FLIGHT
- Vars
- K(e);P_SPINS(b),S_FLIGHT::QAB1(J),XP(d)
- K(e);P-FLIGHT,P_SPINS(b)::QAR1(J),XP(d)
- K(e);P-FLIGHT,XP(E)::QAR1(J),XP(f)
- S(b);::QAB1(J),XP(f)
- Refutation
- P(c);
- Try
- K(I);P-FLIGHT
- Vars
- K(e);P_SPINS(b),S_FLIGHT::QAB1(J),XP(d)
- K(e);P-FLIGHT,P_SPINS(b)::QAR1(J),XP(d)
- K(e);P-FLIGHT,XP(E)::QAR1(J),XP(f)
- S(b);::QAB1(J),XP(f)
- Refutation
- P(c);
- Try
- K(I);S_FLIGHT
- Vars
- K(e);P_SPINS(b),S_FLIGHT::QAB1(J),XP(d)
- K(e);P-FLIGHT,P_SPINS(b)::QAR1(J),XP(d)
- K(e);P-FLIGHT,XP(E)::QAR1(J),XP(f)
- S(b);::QAB1(J),XP(f)
- Refutation
- P(c);
- Try
- K(I);P-FLIGHT
- Vars
- K(e);P_SPINS(b),S_FLIGHT::QAB1(J),XP(d)
- K(e);P-FLIGHT,P_SPINS(b)::QAR1(J),XP(d)
- K(e);P-FLIGHT,XP(E)::QAR1(J),XP(f)
- S(b);::QAB1(J),XP(f)
- Refutation
- P(c);
- Try
- K(I);S_FLIGHT
- Vars
- K(e);P_SPINS(b),S_FLIGHT::QAB1(J),XP(d)
- K(e);P-FLIGHT,P_SPINS(b)::QAR1(J),XP(d)
- K(e);P-FLIGHT,XP(E)::QAR1(J),XP(f)
- S(b);::QAB1(J),XP(f)
- Refutation
- P(c);
- Try
- B(A);XS(b)
- Threat
- QAR2(J),XP(d)
- Vars
- K(e);S_FLIGHT::QAB1(J),XP(d)
- K(e);P-FLIGHT::QAR1(J),XP(d)
- Refutation
- S(a);XB(A)
- Try
- B(H);
- Vars
- K(e);P-FLIGHT,P_SPINS(b)::QAR1(J),XP(d)
- K(e);P-FLIGHT,XP(E)::QAR1(J),XP(f)
- S(b);::QAB1(J),XP(f)
- Refutation
- P(c);
- Try
- B(H);CHECK
- Vars
- K(e);P_SPINS(b),S_FLIGHT::QAB1(J),XP(d)
- K(e);P-FLIGHT,P_SPINS(b)::QAR1(J),XP(d)
- K(e);P-FLIGHT,XP(E)::QAR1(J),XP(f)
- S(b);SBLOCK,XB(H)::QAB1(J),XP(f)
- Refutation
- K(e);S_FLIGHT,XB(H)
- Try
- B(H);
- Vars
- K(e);P_SPINS(b),S_FLIGHT::QAB1(J),XP(d)
- K(e);P-FLIGHT,P_SPINS(b)::QAR1(J),XP(d)
- K(e);P-FLIGHT,XP(E)::QAR1(J),XP(f)
- S(b);::QAB1(J),XP(f)
- Refutation
- P(c);
- Try
- R(B);XS(b)
- Threat
- DUALS(2)
- Vars
- P(c);XR(B)::QAR2(J),XP(d)
- Refutation
- S(a);XR(B)
- Try
- R(K);
- Vars
- K(e);P_SPINS(b),S_FLIGHT::QAB1(J),XP(d)
- K(e);P-FLIGHT,P_SPINS(b)::QAR1(J),XP(d)
- K(e);P-FLIGHT,XP(E)::QAR1(J),XP(f)
- S(b);::QAB1(J),XP(f)
- Refutation
- P(c);
- Try
- R(K);
- Vars
- K(e);P_SPINS(b),S_FLIGHT::QAB1(J),XP(d)
- K(e);P-FLIGHT,P_SPINS(b)::QAR1(J),XP(d)
- K(e);P-FLIGHT,XP(E)::QAR1(J),XP(f)
- S(b);::QAB1(J),XP(f)
- Refutation
- P(c);
- Try
- R(K);
- Vars
- K(e);P_SPINS(b),S_FLIGHT::QAB1(J),XP(d)
- K(e);P-FLIGHT,P_SPINS(b)::QAR1(J),XP(d)
- K(e);P-FLIGHT,P_SPINP(f),XP(E)::QAR1(J),XP(f)
- S(b);::QAB1(J),XP(f)
- Refutation
- P(c);
- Try
- R(K);
- Vars
- K(e);P_SPINS(b),S_FLIGHT::QAB1(J),XP(d)
- K(e);P-FLIGHT,P_SPINS(b)::QAR1(J),XP(d)
- K(e);P-FLIGHT,XP(E)::QAR1(J),XP(f)
- S(b);::QAB1(J),XP(f)
- Refutation
- P(c);
- Try
- R(K);
- Vars
- K(e);P_SPINS(b),S_FLIGHT::QAB1(J),XP(d)
- K(e);P-FLIGHT,P_SPINS(b)::QAR1(J),XP(d)
- K(e);P-FLIGHT,XP(E)::QAR1(J),XP(f)
- S(b);::QAB1(J),XP(f)
- Refutation
- P(c);
- Try
- R(K);
- Vars
- K(e);P_SPINS(b),S_FLIGHT::QAB1(J),XP(d)
- K(e);P-FLIGHT,P_SPINS(b)::QAR1(J),XP(d)
- K(e);P-FLIGHT,XP(E)::QAR1(J),XP(f)
- S(b);::QAB1(J),XP(f)
- Refutation
- P(c);
- Try
- P(F);
- Vars
- K(e);P_SPINS(b),S_FLIGHT::QAB1(J),XP(d)
- K(e);P-FLIGHT,P_SPINS(b)::QAR1(J),XP(d)
- K(e);P-FLIGHT,XP(E)::QAR1(J),XP(f)
- S(b);::QAB1(J),XP(f)
- Refutation
- P(c);
- Try
- Actual
- S(D);
- Vars
- K(e);P_SPINS(b),S_FLIGHT::QAB(J),XP(f)
- K(e);P-FLIGHT,P_SPINS(b),XP(E)::QAR(J),XP(d)
- K(e);P_SPINS(b),S_FLIGHT,XP(F)::B(H)
- S(b);::S(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).