MESON Chess Problem Database
Problem Display
PID: 231262 (3R4/6Bp/2p3bb/P1k1p2r/K3p1Q1/3P2N1/4P3/1R3r2 w - - 0 1)
Tsingerling, GA
1st Prize, Zadachi i Etyudi, 1927
#2
9 + 9
| 6490 | yacpdb | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rf4
- 2.Rc1#
- 1...Rff5
- 2.Sxe4#
- 1...Rhf5
- 2.Sxe4#
- 1...Bf7
- 2.Sxe4#
- 1...Be8
- 2.Sxe4#
- 1...Bf4
- 2.Bf8#
- 1...exd3
- 2.Qb4#
- 1...e3
- 2.Qb4#
- 2.Qc4#
- 1...Rf4
- Tries
- 1.Qe6?
- threat
- 2.Qc4#
- 2.Qd6#
- 2.Qe7#
- 1...Rc1
- 2.Qd6#
- 2.Qe7#
- 1...Rf6
- 2.Qc4#
- 1...Rf7
- 2.Qc4#
- 2.Qd6#
- 1...Bf7
- 2.Sxe4#
- 2.Qd6#
- 2.Qe7#
- 1...Bg5
- 2.Qc4#
- 2.Qxe5#
- 2.Qd6#
- 1...exd3!
- threat
- 1.Qd7?
- threat
- 2.Qd6#
- 2.Qa7#
- 2.Qe7#
- 1...Rxb1
- 2.Qd6#
- 2.Qe7#
- 1...Rf6
- 2.Qa7#
- 1...Rf7
- 2.Qd6#
- 1...Bg5
- 2.Qd6#
- 2.Qa7#
- 1...exd3!
- threat
- 1.Qxe4?
- threat
- 2.Qb4#
- 2.Qc4#
- 1...Rxb1
- 2.Qc4#
- 1...Bxe4
- 2.Sxe4#
- 1...Rc1
- 2.Qb4#
- 1...Rf4
- 2.Rc1#
- 1...Bf7
- 2.Qb4#
- 1...Bd2
- 2.Qc4#
- 1...Rh4!
- threat
- 1.Qxg6?
- threat
- 2.Sxe4#
- 2.Qd6#
- 1...hxg6
- 2.Sxe4#
- 1...Rf4
- 2.Rc1#
- 2.Qd6#
- 1...Rf6
- 2.Sxe4#
- 1...Rh4
- 2.Qd6#
- 1...e3
- 2.Se4#
- 2.Qd6#
- 1...exd3!
- threat
- 1.Qe6?
- Keys
- 1.Qf4!
- 1...Rxb1
- 2.Qf8#
- 1...Rxf4
- 2.Rc1#
- 1...Bxf4
- 2.Bf8#
- 1...Bxg7
- 2.Qe3#
- 1...exd3
- 2.Qb4#
- 1...exf4
- 2.Bd4#
- 1...Rc1
- 2.Rxc1#
- 2.Qf8#
- 1...Rd1
- 2.Qf8#
- 1...Re1
- 2.Qf8#
- 1...Rg1
- 2.Qf8#
- 1...Rfh1
- 2.Qf8#
- 1...Rf2
- 2.Rc1#
- 1...Rf3
- 2.Rc1#
- 1...Rhh1
- 2.Qxe5#
- 1...Rh2
- 2.Qxe5#
- 1...Rh3
- 2.Qxe5#
- 1...Rh4
- 2.Qxe5#
- 1...Rf5
- 2.Sxe4#
- 1...Rg5
- 2.Qe3#
- 1...Bf5
- 2.Qxe5#
- 1...Bf7
- 2.Sxe4#
- 1...Be8
- 2.Sxe4#
- 1...Bg5
- 2.Qxe5#
- 1...e3
- 2.Qb4#
- 2.Qc4#
- 1...Rxb1
- 1.Qf4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 16
- REMOVED MATES = 1
- Sets
- R(a);N_GUARD,S_CUTB(h)::R(A)
- R(a);S_CUTB(g)::S(D),XP(b)
- R(e);S_CUTB(g)::S(D),XP(b)
- B(g);N_GUARD::S(D),XP(b)
- B(h);N_GUARD,S_CUTR(a)::B(H)
- P(b);OGATE,XP(C)::QAB1(F)
- Tries
- Try
- Q(F);
- Threat
- DUALS(3)
- Vars
- R(a);::QAR1(F)
- Refutation
- P(b);XP(C)
- Try
- Q(F);
- Threat
- DUALS(3)
- Vars
- R(a);::QAB(F)
- R(a);::QAB1(F)
- Refutation
- P(b);XP(C)
- Try
- Q(F);XP(b)
- Threat
- DUALS(2)
- Vars
- R(a);XR(A)::QAR1(F)
- B(g);XQ(F)::S(D),XB(g)
- R(a);::QAB1(F)
- R(a);N_GUARD,P_PINQ(F),S_CUTB(h)::R(A)
- B(g);::QAB1(F)
- B(h);::QAR1(F)
- Refutation
- R(e);P_PINQ(F)
- Try
- Q(F);XB(g)
- Threat
- DUALS(2)
- Vars
- P(i);XQ(F)::S(D),XP(b)
- R(a);::S(D),XP(b)
- R(e);::QAB1(F)
- Refutation
- P(b);XP(C)
- Try
- Actual
- Q(F);
- Vars
- R(a);N_GUARD,XR(A)::QAB(F)
- R(a);N_GUARD,XQ(F)::R(A)
- B(h);N_GUARD,XQ(F)::B(H)
- B(h);N_GUARD,XB(H)::QAB(F)
- P(b);OGATE,XP(C)::QAB1(F)
- P(d);OGATE,XQ(F)::B(H)
- R(a);N_GUARD::QAB(F)
- R(a);N_GUARD::R(A)
- R(e);N_GUARD::QAR2(F),XP(d)
- R(e);S_CUTB(g)::S(D),XP(b)
- R(e);S_CUTB(h)::QAB(F)
- B(g);S_CUTR(e)::QAR2(F),XP(d)
- B(g);N_GUARD::S(D),XP(b)
- B(h);S_CUTR(e)::QAR2(F),XP(d)
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).