MESON Chess Problem Database
Problem Display
PID: 92303 (7n/5p2/5Kp1/1p1pN1R1/1P1kP1Q1/1R2n3/5B2/2br4 w - - 0 1)
Turiev, S
1/3 Prize, Shakhmaty, 1960
#2
8 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Re1
- 2.Rd3#
- 1...Rf1
- 2.Rd3#
- 1...Rg1
- 2.Rd3#
- 1...Rh1
- 2.Rd3#
- 1...Rd2
- 2.Bxe3#
- 1...Rd3
- 2.Rxd3#
- 1...Bb2
- 2.Bxe3#
- 1...Bd2
- 2.Rd3#
- 1...Ba3
- 2.Bxe3#
- 1...dxe4
- 2.Qd7#
- 1...Re1
- Tries
- 1.Bg1?
- 1...Rxg1
- 2.Rd3#
- 1...dxe4
- 2.Qd7#
- 1...Re1
- 2.Rd3#
- 1...Rd2
- 2.Bxe3#
- 1...Rd3
- 2.Rxd3#
- 1...Bb2
- 2.Bxe3#
- 1...Bd2
- 2.Rd3#
- 1...Ba3
- 2.Bxe3#
- 1...Rf1+!
- 1...Rxg1
- 1.Ra3?
- 1...dxe4
- 2.Qd7#
- 1...Re1
- 2.Rd3#
- 1...Rf1
- 2.Rd3#
- 1...Rg1
- 2.Rd3#
- 1...Rh1
- 2.Rd3#
- 1...Rd2
- 2.Bxe3#
- 1...Rd3
- 2.Rxd3#
- 1...Bb2
- 2.Bxe3#
- 1...Bd2
- 2.Rd3#
- 1...Bxa3!
- 1...dxe4
- 1.Rxe3?
- threat
- 2.Rd3#
- 1...Rd3
- 2.Rxd3#
- 1...Bxe3!
- threat
- 1.Qf3?
- 1...Re1
- 2.Rd3#
- 1...Rf1
- 2.Rd3#
- 1...Rg1
- 2.Rd3#
- 1...Rh1
- 2.Rd3#
- 1...Rd2
- 2.Bxe3#
- 2.Qxe3#
- 1...Rd3
- 2.Rxd3#
- 1...Bb2
- 2.Bxe3#
- 2.Qxe3#
- 1...Bd2
- 2.Rd3#
- 1...Ba3
- 2.Bxe3#
- 2.Qxe3#
- 1...dxe4!
- 1...Re1
- 1.Qf5?
- 1...dxe4
- 2.Qd7#
- 1...Re1
- 2.Rd3#
- 1...Rf1
- 2.Rd3#
- 1...Rg1
- 2.Rd3#
- 1...Rh1
- 2.Rd3#
- 1...Rd2
- 2.Bxe3#
- 1...Rd3
- 2.Rxd3#
- 1...Bb2
- 2.Bxe3#
- 1...Bd2
- 2.Rd3#
- 1...Ba3
- 2.Bxe3#
- 1...gxf5!
- 1...dxe4
- 1.Qg2?
- 1...Re1
- 2.Rd3#
- 1...Rf1
- 2.Rd3#
- 1...Rg1
- 2.Rd3#
- 1...Rh1
- 2.Rd3#
- 1...Rd2
- 2.Bxe3#
- 1...Rd3
- 2.Rxd3#
- 1...Bb2
- 2.Bxe3#
- 1...Bd2
- 2.Rd3#
- 1...Ba3
- 2.Bxe3#
- 1...dxe4!
- 1...Re1
- 1.Qf4?
- 1...Re1
- 2.Rd3#
- 1...Rf1
- 2.Rd3#
- 1...Rg1
- 2.Rd3#
- 1...Rh1
- 2.Rd3#
- 1...Rd2
- 2.Bxe3#
- 2.Qxe3#
- 1...Rd3
- 2.Rxd3#
- 1...Bb2
- 2.Bxe3#
- 2.Qxe3#
- 1...Bd2
- 2.Rd3#
- 1...Ba3
- 2.Bxe3#
- 2.Qxe3#
- 1...dxe4!
- 1...Re1
- 1.Qh4?
- 1...Re1
- 2.Rd3#
- 1...Rf1
- 2.Rd3#
- 1...Rg1
- 2.Rd3#
- 1...Rh1
- 2.Rd3#
- 1...Rd2
- 2.Bxe3#
- 1...Rd3
- 2.Rxd3#
- 1...Bb2
- 2.Bxe3#
- 1...Bd2
- 2.Rd3#
- 1...Ba3
- 2.Bxe3#
- 1...dxe4!
- 1...Re1
- 1.Bg1?
- Keys
- 1.Qe2!
- 1...Kxe4
- 2.Rg4#
- 1...dxe4
- 2.Sc6#
- 1...Re1
- 2.Qd3#
- 1...Rf1
- 2.Qd3#
- 1...Rg1
- 2.Qd3#
- 1...Rh1
- 2.Qd3#
- 1...Rd2
- 2.Qxe3#
- 1...Rd3
- 2.Qxd3#
- 1...Bb2
- 2.Qxe3#
- 1...Bd2
- 2.Qd3#
- 1...Ba3
- 2.Qxe3#
- 1...Kxe4
- 1.Qe2!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 10
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(b);N_GUARD::R1(B)
- R(b);N_GUARD,P_PINB(A)::R1(B)
- R(b);S_CUTB(a)::B(A),XS(c)
- R(b);N_GUARD::R1(B),XR(b)
- B(a);N_GUARD::B(A),XS(c)
- B(a);S_CUTR(b)::R1(B)
- P(f);OGATEB,P_SPINP(f),SBLOCK,XP(D)::QAR(E)
- Tries
- Try
- B(A);
- Vars
- R(b);N_GUARD,N_SPINS(c),XB(A)::R1(B)
- P(f);OGATEB,P_SPINP(f),SBLOCK,XP(D)::QAR(E)
- R(b);N_GUARD::R1(B)
- R(b);S_CUTB(a)::B(A),XS(c)
- R(b);N_GUARD::R1(B),XR(b)
- B(a);N_GUARD::B(A),XS(c)
- B(a);S_CUTR(b)::R1(B)
- Refutation
- R(b);CHECK
- Try
- R(B);
- Vars
- P(f);OGATEB,P_SPINP(f),SBLOCK,XP(D)::QAR(E)
- R(b);N_GUARD::R1(B)
- R(b);N_GUARD,P_PINB(A)::R1(B)
- R(b);S_CUTB(a)::B(A),XS(c)
- R(b);N_GUARD::R1(B),XR(b)
- B(a);N_GUARD::B(A),XS(c)
- B(a);S_CUTR(b)::R1(B)
- Refutation
- B(a);XR(B)
- Try
- R(B);XS(c)
- Threat
- B(A)+R(B),DCHECK
- Vars
- R(b);::B(A)+R(B),DCHECK,XR(b)
- Refutation
- B(a);P_SPINB(a),XR(B)
- Try
- Q(E);
- Vars
- R(b);N_GUARD::R1(B)
- R(b);N_GUARD::R1(B),XR(b)
- B(a);S_CUTR(b)::R1(B)
- Refutation
- P(f);XP(D)
- Try
- Q(E);
- Vars
- P(f);OGATEB,SBLOCK,XP(D)::QAR(E)
- R(b);N_GUARD::R1(B)
- R(b);S_CUTB(a)::B(A),XS(c)
- R(b);N_GUARD::R1(B),XR(b)
- B(a);N_GUARD::B(A),XS(c)
- B(a);S_CUTR(b)::R1(B)
- Refutation
- P(g);XQ(E)
- Try
- Q(E);
- Vars
- R(b);N_GUARD::R1(B)
- R(b);N_GUARD,P_PINB(A)::R1(B)
- R(b);S_CUTB(a)::B(A),XS(c)
- R(b);N_GUARD::R1(B),XR(b)
- B(a);N_GUARD::B(A),XS(c)
- B(a);S_CUTR(b)::R1(B)
- Refutation
- P(f);XP(D)
- Try
- Q(E);
- Vars
- R(b);N_GUARD::R1(B)
- R(b);N_GUARD::R1(B),XR(b)
- B(a);S_CUTR(b)::R1(B)
- Refutation
- P(f);P_SPINP(f),XP(D)
- Try
- Q(E);
- Vars
- R(b);N_GUARD::R1(B)
- R(b);N_GUARD,P_PINB(A)::R1(B)
- R(b);S_CUTB(a)::B(A),XS(c)
- R(b);N_GUARD::R1(B),XR(b)
- B(a);N_GUARD::B(A),XS(c)
- B(a);S_CUTR(b)::R1(B)
- Refutation
- P(f);P_SPINP(f),XP(D)
- Try
- Actual
- Q(E);
- Vars
- K(d);OGATEB,P-FLIGHT,XP(D)::R(G)
- P(f);SBLOCK,XP(D)::S(F)
- R(b);N_GUARD::QAR1(E)
- R(b);N_GUARD,P_PINB(A)::QAR1(E)
- R(b);S_CUTB(a)::QAB1(E),XS(c)
- R(b);N_GUARD::QAR1(E),XR(b)
- B(a);N_GUARD::QAB1(E),XS(c)
- B(a);S_CUTR(b)::QAR1(E)
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).