MESON Chess Problem Database
Problem Display
PID: 74987 (8/2pQpRn1/r4P2/3B2p1/4pkN1/2r1N3/b2B2K1/8 w - - 0 1)
Tabidze, Otar
1st Prize, Source?, 1955
#2
8 + 9
| 6160 | A Chess Philosophy of Otar Tabidze | 1999 |
SOLUTION
- SOUND
- Sets
- 1...Rxe3
- 2.Bxe3#
- 1...Ra3
- 2.fxg7#
- 1...Ra4
- 2.fxg7#
- 1...Ra5
- 2.fxg7#
- 1...Ra7
- 2.fxg7#
- 1...Ra8
- 2.fxg7#
- 1...Bxd5
- 2.Sxd5#
- 1...Sf5
- 2.Qxf5#
- 1...Sh5
- 2.Qf5#
- 1...Se6
- 2.fxe7#
- 1...Se8
- 2.Qf5#
- 1...c6
- 2.fxg7#
- 1...e6
- 2.fxg7#
- 1...Rxe3
- Tries
- 1.Kf2?
- threat
- 2.Sg2#
- 1...Rxe3
- 2.Bxe3#
- 1...Sf5
- 2.Qxf5#
- 1...Se6
- 2.fxe7#
- 1...e6
- 2.fxg7#
- 1...Re6!
- threat
- 1.Sd1+?
- 1...Re3
- 2.Bxe3#
- 1...e3!
- 1...Re3
- 1.Sf1+?
- 1...Re3
- 2.Bxe3#
- 1...e3!
- 1...Re3
- 1.Sc2+?
- 1...Re3
- 2.Bxe3#
- 1...e3!
- 1...Re3
- 1.Sc4+?
- 1...Re3
- 2.Bxe3#
- 1...e3!
- 1...Re3
- 1.Bxc3?
- threat
- 2.Be5#
- 1...e5
- 2.Bxe5#
- 1...Re6!
- threat
- 1.Bxa2?
- threat
- 2.Sd5#
- 1...Rxe3
- 2.Bxe3#
- 1...Sf5
- 2.Qxf5#
- 1...Se6
- 2.fxe7#
- 1...e6
- 2.fxg7#
- 1...Re6!
- threat
- 1.Bb3?
- threat
- 2.Sd5#
- 1...Rxe3
- 2.Bxe3#
- 1...Sf5
- 2.Qxf5#
- 1...Se6
- 2.fxe7#
- 1...e6
- 2.fxg7#
- 1...Re6!
- threat
- 1.Bc4?
- threat
- 2.Sd5#
- 1...Rxe3
- 2.Bxe3#
- 1...Sf5
- 2.Qxf5#
- 1...Se6
- 2.fxe7#
- 1...e6
- 2.fxg7#
- 1...Re6!
- threat
- 1.Qe6?
- threat
- 2.Qxe4#
- 2.Qe5#
- 2.fxg7#
- 1...Rxe3
- 2.Bxe3#
- 2.Qxe4#
- 2.fxg7#
- 1...Bxd5
- 2.Sxd5#
- 2.Qe5#
- 2.fxg7#
- 1...Sxe6
- 2.fxe7#
- 1...exf6
- 2.Qxe4#
- 2.Qe5#
- 1...Rc4
- 2.Qe5#
- 2.fxg7#
- 1...Ra4
- 2.Qe5#
- 2.fxg7#
- 1...Bb1
- 2.Qe5#
- 2.fxg7#
- 1...Sf5
- 2.Qxf5#
- 2.Qxe4#
- 2.Qe5#
- 1...Sh5
- 2.Qf5#
- 2.Qxe4#
- 2.Qe5#
- 1...Se8
- 2.Qf5#
- 2.Qxe4#
- 2.Qe5#
- 1...Rxe6!
- threat
- 1.Qd6+?
- 1...cxd6
- 2.fxg7#
- 1...exd6
- 2.fxg7#
- 1...e5
- 2.Qxe5#
- 2.fxg7#
- 1...Rxd6!
- 1...cxd6
- 1.Qxc7+?
- 1...Rd6
- 2.fxg7#
- 1...e5
- 2.Qxe5#
- 1...Rxc7!
- 1...Rd6
- 1.fxe7+?
- 1...Sf5
- 2.Rxf5#
- 2.Qxf5#
- 1...Rf6!
- 1...Sf5
- 1.Kf2?
- Keys
- 1.Bc6!
- threat
- 2.Sd5#
- 1...Rxe3
- 2.Bxe3#
- 1...Bd5
- 2.Sxd5#
- 1...Be6
- 2.Qxc7#
- 1...Sf5
- 2.Qxf5#
- 1...Se6
- 2.fxe7#
- 1...e6
- 2.fxg7#
- threat
- 1.Bc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 8
- Sets
- R(b);OGATE,P_SPINR(b),XS(C)::B(A),XR(b)
- R(f);N_GUARD::R(H)+P(F),XS(i)
- B(a);XB(E)::B(A)+S(C),DCHECK,XB(a)
- S(i);N_GUARD::QAR1(G),XS(i)
- S(i);N_GUARD::QAR1(G)
- S(i);N_GUARD,S_CUTR(f)::R(H)+P(F),XP(h)
- P(g);S_CUTR(f)::R(H)+P(F),XS(i)
- P(h);S_CUTR(f)::R(H)+P(F),XS(i)
- Tries
- Try
- K(B);P-FLIGHT
- Threat
- B(A)+S(C),DCHECK
- Vars
- R(b);OGATE,P_SPINR(b),XS(C)::B(A),XR(b)
- S(i);N_GUARD::QAR1(G),XS(i)
- S(i);N_GUARD,S_CUTR(f)::R(H)+P(F),XP(h)
- P(h);S_CUTR(f)::R(H)+P(F),XS(i)
- Refutation
- R(f);
- Try
- S(C);CHECK
- Vars
- R(b);N_GUARD,P_SPINR(b)::B(A),XR(b)
- Refutation
- P(c);P_SPINP(c)
- Try
- S(C);CHECK
- Vars
- R(b);N_GUARD,P_SPINR(b)::B(A),XR(b)
- Refutation
- P(c);P_SPINP(c)
- Try
- S(C);CHECK
- Vars
- R(b);N_GUARD,P_SPINR(b)::B(A),XR(b)
- Refutation
- P(c);P_SPINP(c)
- Try
- S(C);CHECK
- Vars
- R(b);N_GUARD,P_SPINR(b)::B(A),XR(b)
- Refutation
- P(c);P_SPINP(c)
- Try
- B(A);XR(b)
- Threat
- B(A)
- Vars
- P(h);::B(A),XP(h)
- Refutation
- R(f);
- Try
- B(E);XB(a)
- Threat
- B(A)+S(C),DCHECK
- Vars
- R(b);OGATE,P_SPINR(b),XS(C)::B(A),XR(b)
- S(i);N_GUARD::QAR1(G),XS(i)
- S(i);N_GUARD,S_CUTR(f)::R(H)+P(F),XP(h)
- P(h);S_CUTR(f)::R(H)+P(F),XS(i)
- Refutation
- R(f);
- Try
- B(E);
- Threat
- B(A)+S(C),DCHECK
- Vars
- R(b);OGATE,P_SPINR(b),XS(C)::B(A),XR(b)
- S(i);N_GUARD::QAR1(G),XS(i)
- S(i);N_GUARD,S_CUTR(f)::R(H)+P(F),XP(h)
- P(h);S_CUTR(f)::R(H)+P(F),XS(i)
- Refutation
- R(f);
- Try
- B(E);
- Threat
- B(A)+S(C),DCHECK
- Vars
- R(b);OGATE,P_SPINR(b),XS(C)::B(A),XR(b)
- S(i);N_GUARD::QAR1(G),XS(i)
- S(i);N_GUARD,S_CUTR(f)::R(H)+P(F),XP(h)
- P(h);S_CUTR(f)::R(H)+P(F),XS(i)
- Refutation
- R(f);
- Try
- Q(G);
- Threat
- DUALS(3)
- Vars
- S(i);N_GUARD,XQ(G)::R(H)+P(F),XP(h)
- Refutation
- R(f);XQ(G)
- Try
- Q(G);CHECK
- Vars
- P(g);XQ(G)::R(H)+P(F),XS(i)
- P(h);XQ(G)::R(H)+P(F),XS(i)
- Refutation
- R(f);XQ(G)
- Try
- Q(G);CHECK,XP(g)
- Vars
- R(f);P_SPINR(f)::R(H)+P(F),XS(i)
- P(h);P_SPINP(h)::QAB1(G),XP(h)
- Refutation
- R(b);XQ(G)
- Try
- P(F);CHECK,XP(h)
- Refutation
- R(f);P_SPINR(f)
- Try
- Actual
- B(E);
- Threat
- B(A)+S(C),DCHECK
- Vars
- R(b);OGATE,P_SPINR(b),XS(C)::B(A),XR(b)
- B(a);::B(A)+S(C),DCHECK,XB(a)
- B(a);S_CUTP(h)::QAB(G),XP(g)
- S(i);N_GUARD::QAR1(G),XS(i)
- S(i);N_GUARD,S_CUTB(a)::R(H)+P(F),XP(h)
- P(h);S_CUTB(a)::R(H)+P(F),XS(i)
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).