MESON Chess Problem Database
Problem Display
PID: 90184 (6K1/4p3/2BbN3/2qr1NB1/4p2R/5k1p/b5p1/4Q1nn w - - 0 1)
Wielgos, Oskar
Die Schwalbe, 1982
#2
7 + 11
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qf2
- 2.Qxe4#
- 1...Qe3
- 2.Qxe3#
- 1...Qb4
- 2.Qe3#
- 1...Qc2
- 2.Qe3#
- 1...Qc4
- 2.Qe3#
- 1...Qa5
- 2.Qe3#
- 1...Qb5
- 2.Qe3#
- 1...Qxc6
- 2.Qe3#
- 1...Rd1
- 2.Bxe4#
- 1...Rd2
- 2.Bxe4#
- 1...Rd3
- 2.Bxe4#
- 1...Rd4
- 2.Qe3#
- 1...Re5
- 2.Rf4#
- 1...Rxf5
- 2.Bxe4#
- 1...Bf4
- 2.Rxf4#
- 1...Qf2
- Tries
- 1.Sfd4+?
- 1...Rxd4
- 2.Qe3#
- 1...Qxd4!
- 1...Rxd4
- 1.Bc1?
- threat
- 2.Sg5#
- 1...Rxf5
- 2.Bxe4#
- 1...Qe3
- 2.Qxe3#
- 1...Rd1
- 2.Bxe4#
- 1...Rd2
- 2.Bxe4#
- 1...Rd3
- 2.Bxe4#
- 1...Rd4
- 2.Qe3#
- 1...Re5
- 2.Rf4#
- 1...Bf4
- 2.Rxf4#
- 1...Qxc1!
- threat
- 1.Be3?
- threat
- 2.Sg5#
- 1...Qxe3
- 2.Qxe3#
- 1...Rxf5
- 2.Bxe4#
- 1...Rd1
- 2.Bxe4#
- 1...Rd2
- 2.Bxe4#
- 1...Rd3
- 2.Bxe4#
- 1...Re5
- 2.Rf4#
- 1...Bf4
- 2.Rxf4#
- 1...Rd4!
- threat
- 1.Bf4?
- threat
- 2.Sg5#
- 1...Rxf5
- 2.Bxe4#
- 1...Bxf4
- 2.Rxf4#
- 1...Rd1
- 2.Bxe4#
- 1...Rd2
- 2.Bxe4#
- 1...Rd3
- 2.Bxe4#
- 1...Rd4
- 2.Qe3#
- 1...Re5!
- threat
- 1.Bh6?
- threat
- 2.Sg5#
- 1...Rxf5
- 2.Bxe4#
- 1...Qe3
- 2.Qxe3#
- 1...Rd1
- 2.Bxe4#
- 1...Rd2
- 2.Bxe4#
- 1...Rd3
- 2.Bxe4#
- 1...Rd4
- 2.Qe3#
- 1...Re5
- 2.Rf4#
- 1...Bf4
- 2.Rxf4#
- 1...Qc1!
- threat
- 1.Bxe7?
- threat
- 2.Sg5#
- 1...Rxf5
- 2.Bxe4#
- 1...Bxe7
- 2.Rf4#
- 1...Qe3
- 2.Qxe3#
- 1...Rd1
- 2.Bxe4#
- 1...Rd2
- 2.Bxe4#
- 1...Rd3
- 2.Bxe4#
- 1...Rd4
- 2.Qe3#
- 1...Re5
- 2.Rf4#
- 1...Bf4
- 2.Rxf4#
- 1...Qc1!
- threat
- 1.Sfd4+?
- Keys
- 1.Bd2!
- threat
- 2.Sg5#
- 1...Rxd2
- 2.Bxe4#
- 1...Rxf5
- 2.Bxe4#
- 1...Qe3
- 2.Qxe3#
- 1...Rd3
- 2.Bxe4#
- 1...Rd4
- 2.Qe3#
- 1...Re5
- 2.Rf4#
- 1...Bf4
- 2.Rxf4#
- threat
- 1.Bd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 8
- Sets
- Q(h);SBLOCK::QAB1(A),XP(g)
- Q(h);N_GUARD::QAR1(A),XQ(h)
- Q(h);N_GUARD::QAR1(A)
- Q(h);N_GUARD,XB(E)::QAR1(A)
- R(i);OGATE,P_PINS(F),P_SPINP(g)::B(E),XP(g)
- R(i);P_PINS(F),P_SPINP(g),S_CUTQ(h)::QAR1(A)
- R(i);P_PINS(F),P_SPINP(g),S_CUTB(j)::R1(B)
- R(i);OGATE,P_PINS(F),P_SPINP(g),XS(C)::B(E),XP(g)
- B(j);N_GUARD::R1(B),XB(j)
- Tries
- Try
- S(C);CHECK
- Vars
- R(i);P_PINS(F),P_SPINP(g),XS(C)::QAR1(A)
- Refutation
- Q(h);XS(C)
- Try
- B(D);
- Threat
- S(F)
- Vars
- R(i);OGATE,P_PINS(F),P_SPINP(g),XS(C)::B(E),XP(g)
- Q(h);N_GUARD::QAR1(A),XQ(h)
- R(i);OGATE,P_PINS(F),P_SPINP(g)::B(E),XP(g)
- R(i);P_PINS(F),P_SPINP(g),S_CUTQ(h)::QAR1(A)
- R(i);P_PINS(F),P_SPINP(g),S_CUTB(j)::R1(B)
- B(j);N_GUARD::R1(B),XB(j)
- Refutation
- Q(h);XB(D)
- Try
- B(D);
- Threat
- S(F)
- Vars
- Q(h);OGATE,XB(D)::QAR1(A),XQ(h)
- R(i);OGATE,P_PINS(F),P_SPINP(g),XS(C)::B(E),XP(g)
- R(i);OGATE,P_PINS(F),P_SPINP(g)::B(E),XP(g)
- R(i);P_PINS(F),P_SPINP(g),S_CUTB(j)::R1(B)
- B(j);N_GUARD::R1(B),XB(j)
- Refutation
- R(i);P_PINS(F),P_SPINP(g)
- Try
- B(D);
- Threat
- S(F)
- Vars
- R(i);OGATE,P_PINS(F),P_SPINP(g),XS(C)::B(E),XP(g)
- B(j);OGATE,XB(D)::R1(B),XB(j)
- R(i);OGATE,P_PINS(F),P_SPINP(g)::B(E),XP(g)
- R(i);P_PINS(F),P_SPINP(g),S_CUTQ(h)::QAR1(A)
- Refutation
- R(i);P_PINS(F),P_SPINP(g)
- Try
- B(D);
- Threat
- S(F)
- Vars
- R(i);OGATE,P_PINS(F),P_SPINP(g),XS(C)::B(E),XP(g)
- Q(h);N_GUARD::QAR1(A),XQ(h)
- R(i);OGATE,P_PINS(F),P_SPINP(g)::B(E),XP(g)
- R(i);P_PINS(F),P_SPINP(g),S_CUTQ(h)::QAR1(A)
- R(i);P_PINS(F),P_SPINP(g),S_CUTB(j)::R1(B)
- B(j);N_GUARD::R1(B),XB(j)
- Refutation
- Q(h);
- Try
- B(D);XP(k)
- Threat
- S(F)
- Vars
- R(i);OGATE,P_PINS(F),P_SPINP(g),XS(C)::B(E),XP(g)
- B(j);N_GUARD,XB(D)::R1(B)
- Q(h);N_GUARD::QAR1(A),XQ(h)
- R(i);OGATE,P_PINS(F),P_SPINP(g)::B(E),XP(g)
- R(i);P_PINS(F),P_SPINP(g),S_CUTQ(h)::QAR1(A)
- R(i);P_PINS(F),P_SPINP(g),S_CUTB(j)::R1(B)
- B(j);N_GUARD::R1(B),XB(j)
- Refutation
- Q(h);
- Try
- Actual
- B(D);
- Threat
- S(F)
- Vars
- R(i);OGATE,P_PINS(F),P_SPINP(g),XB(D)::B(E),XP(g)
- R(i);OGATE,P_PINS(F),P_SPINP(g),XS(C)::B(E),XP(g)
- Q(h);N_GUARD::QAR1(A),XQ(h)
- R(i);OGATE,P_PINS(F),P_SPINP(g)::B(E),XP(g)
- R(i);P_PINS(F),P_SPINP(g),S_CUTQ(h)::QAR1(A)
- R(i);P_PINS(F),P_SPINP(g),S_CUTB(j)::R1(B)
- B(j);N_GUARD::R1(B),XB(j)
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).