MESON Chess Problem Database
Problem Display
PID: 55092 (4R2K/8/p1r3pB/8/NQBkN3/5p2/2r5/n5bb w - - 0 1)
Pituk, Alexander
3rd Prize, Sachove umeni (Ceskoslovensky sach), 1964
#2
7 + 9
| 3747 | FIDE Album (1962-1964) | 1968 |
SOLUTION
- SOUND
- Sets
- 1...Ra2
- 2.Qc3#
- 1...Rb2
- 2.Qc3#
- 1...Rd2
- 2.Qc3#
- 1...Re2
- 2.Qc3#
- 1...Rf2
- 2.Qc3#
- 1...Rg2
- 2.Qc3#
- 1...Rh2
- 2.Qc3#
- 1...Rc3
- 2.Qxc3#
- 1...R2xc4
- 2.Qd2#
- 1...R6xc4
- 2.Qd6#
- 1...Rc5
- 2.Qxc5#
- 1...Rb6
- 2.Qc5#
- 1...Rd6
- 2.Qc5#
- 1...Rf6
- 2.Qc5#
- 1...Ra2
- Tries
- 1.Sd2?
- threat
- 2.Re4#
- 1...Rxd2
- 2.Qc3#
- 1...R6xc4
- 2.Qd6#
- 1...Re6
- 2.Qc5#
- 1...Rc8
- 2.Bg7#
- 2.Qd6#
- 1...f2
- 2.Be3#
- 1...R2xc4!
- threat
- 1.Sf2?
- threat
- 2.Be3#
- 2.Re4#
- 1...Rxf2
- 2.Be3#
- 2.Qc3#
- 1...R2xc4
- 2.Qd2#
- 1...R6xc4
- 2.Qd6#
- 1...Re6
- 2.Qc5#
- 1...Re2
- 2.Qc3#
- 1...Rc3
- 2.Re4#
- 2.Qxc3#
- 1...Rc8
- 2.Be3#
- 2.Bg7#
- 1...g5
- 2.Re4#
- 1...Bxf2!
- threat
- 1.Sec3?
- threat
- 2.Re4#
- 1...Rxc3
- 2.Qxc3#
- 1...Rxc4
- 2.Qd6#
- 1...Re6
- 2.Qc5#
- 1...Rc8
- 2.Bg7#
- 1...f2
- 2.Be3#
- 1...Re2!
- threat
- 1.Sec5?
- threat
- 2.Re4#
- 1...Rxc4
- 2.Qd2#
- 1...Rxc5
- 2.Qxc5#
- 1...Re2
- 2.Ba2#
- 2.Bb3#
- 2.Bf7#
- 2.Bg8#
- 2.Qc3#
- 1...Rc8
- 2.Bg7#
- 1...f2
- 2.Be3#
- 1...Re6!
- threat
- 1.Sg5?
- threat
- 2.Re4#
- 1...R2xc4
- 2.Qd2#
- 1...R6xc4
- 2.Qd6#
- 1...Re6
- 2.Qc5#
- 1...Re2
- 2.Qc3#
- 1...Rc8
- 2.Bg7#
- 1...f2!
- threat
- 1.Sd6?
- threat
- 2.Bg7#
- 2.Re4#
- 1...R2xc4
- 2.Qd2#
- 1...Rxd6
- 2.Qc5#
- 1...Re2
- 2.Qc3#
- 1...Rh2
- 2.Re4#
- 2.Qc3#
- 1...Rc5
- 2.Re4#
- 2.Qxc5#
- 1...Rc7
- 2.Re4#
- 1...Rc8
- 2.Bg7#
- 1...Bh2
- 2.Be3#
- 2.Re4#
- 1...f2
- 2.Be3#
- 2.Bg7#
- 1...R6xc4!
- threat
- 1.Sf6?
- threat
- 2.Re4#
- 1...R2xc4
- 2.Qd2#
- 1...R6xc4
- 2.Qd6#
- 1...Rxf6
- 2.Qc5#
- 1...Re6
- 2.Qc5#
- 1...Re2
- 2.Qc3#
- 1...f2
- 2.Be3#
- 1...Rc8!
- threat
- 1.Bf1+?
- 1...R2c4
- 2.Qd2#
- 1...R6c4
- 2.Qd6#
- 1...Kd5!
- 1...R2c4
- 1.Ba2+?
- 1...R2c4
- 2.Qd2#
- 1...R6c4
- 2.Qd6#
- 1...Kd3!
- 1...R2c4
- 1.Be2+?
- 1...R2c4
- 2.Qd2#
- 1...R6c4
- 2.Qd6#
- 1...Kd5!
- 1...R2c4
- 1.Bb3+?
- 1...R2c4
- 2.Qd2#
- 1...R6c4
- 2.Qd6#
- 1...Kd3!
- 1...R2c4
- 1.Bb5+?
- 1...R2c4
- 2.Qd2#
- 1...R6c4
- 2.Qd6#
- 1...Kd5!
- 1...R2c4
- 1.Bxa6+?
- 1...R2c4
- 2.Qd2#
- 1...R6c4
- 2.Qd6#
- 1...Kd5!
- 1...R2c4
- 1.Bf7+?
- 1...R2c4
- 2.Qd2#
- 1...R6c4
- 2.Qd6#
- 1...Kd3!
- 1...R2c4
- 1.Bg8+?
- 1...R2c4
- 2.Qd2#
- 1...R6c4
- 2.Qd6#
- 1...Kd3!
- 1...R2c4
- 1.Bg7+?
- 1...Rf6
- 2.Qc5#
- 1...Ke3!
- 1...Rf6
- 1.Sd2?
- Keys
- 1.Sg3!
- threat
- 2.Re4#
- 1...R2xc4
- 2.Qd2#
- 1...R6xc4
- 2.Qd6#
- 1...Re6
- 2.Qc5#
- 1...Re2
- 2.Qc3#
- 1...Rc8
- 2.Bg7#
- 1...f2
- 2.Be3#
- threat
- 1.Sg3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 11
- Sets
- R(d);N_GUARD::QAB1(B)
- R(d);N_GUARD,P_PINB(E)::QAB1(B)
- R(d);N_GUARD::QAB1(B),XR(d)
- R(d);N_GUARD,P_SPINR(d),SBLOCK,XB(C)::QAR2(B)
- R(h);N_GUARD,P_SPINR(h),SBLOCK,XB(C)::QAR2(B)
- R(h);N_GUARD::QAB1(B),XR(h)
- R(h);N_GUARD::QAB1(B)
- Tries
- Try
- S(D);
- Threat
- R1(F)
- Vars
- R(d);N_GUARD,XS(D)::QAB1(B)
- R(h);N_GUARD,P_SPINR(h),XB(C)::QAR2(B)
- R(h);N_GUARD::QAB1(B)
- P(e);S_CUTB(b)::B(E)
- Refutation
- R(d);P_SPINR(d),XB(C)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- R(d);N_GUARD,P_SPINR(d),SBLOCK,XB(C)::QAR2(B)
- R(h);N_GUARD,P_SPINR(h),SBLOCK,XB(C)::QAR2(B)
- R(h);N_GUARD::QAB1(B)
- R(d);N_GUARD::QAB1(B)
- P(i);::R1(F)
- Refutation
- B(b);XS(D)
- Try
- S(D);
- Threat
- R1(F)
- Vars
- R(d);OGATE,XS(D)::QAB1(B),XR(d)
- R(h);N_GUARD,P_SPINR(h),SBLOCK,XB(C)::QAR2(B)
- R(h);N_GUARD::QAB1(B)
- R(h);N_GUARD,P_PINR(F)::B(E)
- P(e);S_CUTB(b)::B(E)
- Refutation
- R(d);
- Try
- S(D);
- Threat
- R1(F)
- Vars
- R(d);N_GUARD,P_SPINR(d),SBLOCK,XB(C)::QAR2(B)
- R(h);OGATE,XS(D)::QAB1(B),XR(h)
- R(h);N_GUARD,P_PINR(F)::B(E)
- P(e);S_CUTB(b)::B(E)
- Refutation
- R(h);
- Try
- S(D);
- Threat
- R1(F)
- Vars
- R(d);N_GUARD,P_SPINR(d),SBLOCK,XB(C)::QAR2(B)
- R(h);N_GUARD,P_SPINR(h),SBLOCK,XB(C)::QAR2(B)
- R(h);N_GUARD::QAB1(B)
- R(d);N_GUARD::QAB1(B)
- R(h);N_GUARD,P_PINR(F)::B(E)
- Refutation
- P(e);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- R(d);N_GUARD,P_SPINR(d),XB(C)::QAR2(B)
- R(h);N_GUARD,XS(D)::QAB1(B)
- R(d);N_GUARD::QAB1(B)
- R(h);::R1(F)
- R(h);P_PINR(F)::B(E)
- Refutation
- R(h);P_SPINR(h),XB(C)
- Try
- S(D);
- Threat
- R1(F)
- Vars
- R(d);N_GUARD,P_SPINR(d),SBLOCK,XB(C)::QAR2(B)
- R(h);N_GUARD,P_SPINR(h),SBLOCK,XB(C)::QAR2(B)
- R(h);N_GUARD,XS(D)::QAB1(B)
- R(h);N_GUARD::QAB1(B)
- R(d);N_GUARD::QAB1(B)
- P(e);S_CUTB(b)::B(E)
- Refutation
- R(h);P_PINR(F)
- Try
- B(C);CHECK
- Vars
- R(d);N_GUARD,P_SPINR(d)::QAR2(B)
- R(h);N_GUARD,P_SPINR(h)::QAR2(B)
- Refutation
- K(f);P-FLIGHT
- Try
- B(C);CHECK
- Vars
- R(d);N_GUARD,P_SPINR(d)::QAR2(B)
- R(h);N_GUARD,P_SPINR(h)::QAR2(B)
- Refutation
- K(f);P-FLIGHT
- Try
- B(C);CHECK
- Vars
- R(d);N_GUARD,P_SPINR(d)::QAR2(B)
- R(h);N_GUARD,P_SPINR(h)::QAR2(B)
- Refutation
- K(f);P-FLIGHT
- Try
- B(C);CHECK
- Vars
- R(d);N_GUARD,P_SPINR(d)::QAR2(B)
- R(h);N_GUARD,P_SPINR(h)::QAR2(B)
- Refutation
- K(f);P-FLIGHT
- Try
- B(C);CHECK
- Vars
- R(d);N_GUARD,P_SPINR(d)::QAR2(B)
- R(h);N_GUARD,P_SPINR(h)::QAR2(B)
- Refutation
- K(f);P-FLIGHT
- Try
- B(C);CHECK,XP(g)
- Vars
- R(d);N_GUARD,P_SPINR(d)::QAR2(B)
- R(h);N_GUARD,P_SPINR(h)::QAR2(B)
- Refutation
- K(f);P-FLIGHT
- Try
- B(C);CHECK
- Vars
- R(d);N_GUARD,P_SPINR(d)::QAR2(B)
- R(h);N_GUARD,P_SPINR(h)::QAR2(B)
- Refutation
- K(f);P-FLIGHT
- Try
- B(C);CHECK
- Vars
- R(d);N_GUARD,P_SPINR(d)::QAR2(B)
- R(h);N_GUARD,P_SPINR(h)::QAR2(B)
- Refutation
- K(f);P-FLIGHT
- Try
- B(E);CHECK
- Vars
- R(h);P_SPINR(h)::QAB1(B)
- Refutation
- K(f);S_FLIGHT
- Try
- Actual
- S(D);
- Threat
- R1(F)
- Vars
- R(d);N_GUARD,P_SPINR(d),SBLOCK,XB(C)::QAR2(B)
- R(h);N_GUARD,P_SPINR(h),SBLOCK,XB(C)::QAR2(B)
- R(h);N_GUARD::QAB1(B)
- R(d);N_GUARD::QAB1(B)
- R(h);N_GUARD,P_PINR(F)::B(E)
- P(e);S_CUTB(b)::B(E)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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