MESON Chess Problem Database
Problem Display
PID: 245273 (3K4/3PNNP1/4kBPp/8/4p1p1/4Q2r/7r/1B3Rbb w - - 0 1)
Kisis, Imants J
64 Shakhmatnoe obozrenie, 1977
#2
10 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ra2
- 2.Bxa2#
- 1...Rf2
- 2.Qb6#
- 1...Rg2
- 2.Qxe4#
- 1...Rh4
- 2.Qb3#
- 1...Bg2
- 2.Ba2#
- 1...g3
- 2.Qb3#
- 1...Ra2
- Tries
- 1.Ba1?
- threat
- 2.Rf6#
- 1...Rf2
- 2.Qb6#
- 1...Rf3
- 2.Qxe4#
- 1...Bf2
- 2.Ba2#
- 1...Bf3
- 2.Qb3#
- 1...Rb2!
- threat
- 1.Bb2?
- threat
- 2.Ba2#
- 2.Rf6#
- 1...Rxe3
- 2.Rf6#
- 1...Rc2
- 2.Rf6#
- 1...Rd2
- 2.Rf6#
- 1...Rf2
- 2.Ba2#
- 2.Qb6#
- 1...Rf3
- 2.Ba2#
- 2.Qxe4#
- 1...Rh5
- 2.Rf6#
- 1...Bf2
- 2.Ba2#
- 1...Bf3
- 2.Ba2#
- 2.Qb3#
- 1...Rxb2!
- threat
- 1.Bc3?
- threat
- 2.Rf6#
- 1...Rf2
- 2.Qb6#
- 1...Rf3
- 2.Qxe4#
- 1...Bf2
- 2.Ba2#
- 1...Bf3!
- threat
- 1.Bd4?
- threat
- 2.Rf6#
- 1...Rf3
- 2.Qxe4#
- 1...Bf2
- 2.Ba2#
- 1...Bf3
- 2.Qb3#
- 1...Rf2!
- threat
- 1.Be5?
- threat
- 2.Rf6#
- 1...Rf2
- 2.Qb6#
- 1...Bf2
- 2.Ba2#
- 1...Bf3
- 2.Qb3#
- 1...Rf3!
- threat
- 1.Bg5?
- threat
- 2.Rf6#
- 1...Rf2
- 2.Qb6#
- 1...Rf3
- 2.Qxe4#
- 1...Bf2
- 2.Ba2#
- 1...Bf3
- 2.Qb3#
- 1...hxg5!
- threat
- 1.Qxg1?
- threat
- 2.Qb6#
- 2.Qxg4#
- 1...Rf3
- 2.Qb6#
- 1...Bf3
- 2.Qb6#
- 1...Rc2
- 2.Qxg4#
- 1...Rb2
- 2.Qxg4#
- 1...Rd2
- 2.Qxg4#
- 1...Rg2
- 2.Qb6#
- 1...Rb3
- 2.Qxg4#
- 1...Rc3
- 2.Qxg4#
- 1...Rd3
- 2.Qxg4#
- 1...Re3
- 2.Qxg4#
- 1...Rg3
- 2.Qb6#
- 1...Rh4
- 2.Qb6#
- 1...Rh5
- 2.Qb6#
- 1...Bg2
- 2.Qb6#
- 1...e3
- 2.Qxg4#
- 1...g3
- 2.Qb6#
- 1...h5
- 2.Qb6#
- 1...Rf2!
- threat
- 1.Qd4?
- threat
- 2.Qe5#
- 2.Qc4#
- 2.Qd5#
- 2.Qd6#
- 1...Rc2
- 2.Qe5#
- 2.Qd5#
- 2.Qd6#
- 1...Rd2
- 2.Qe5#
- 1...Rf2
- 2.Qe5#
- 2.Qb6#
- 2.Qd6#
- 1...Rc3
- 2.Qe5#
- 2.Qd5#
- 2.Qd6#
- 1...Rd3
- 2.Qe5#
- 1...Rf3
- 2.Qe5#
- 2.Qd6#
- 1...Rh5
- 2.Qd6#
- 1...Bf2
- 2.Qe5#
- 2.Qd6#
- 1...Bf3
- 2.Qe5#
- 2.Qd6#
- 1...e3
- 2.Bf5#
- 2.Qe5#
- 2.Qxg4#
- 2.Qd6#
- 1...Bxd4!
- threat
- 1.Qf4?
- threat
- 2.Qe5#
- 2.Qd6#
- 2.Qxg4#
- 2.Qf5#
- 1...Rd2
- 2.Qe5#
- 2.Qxg4#
- 2.Qf5#
- 1...Rf2
- 2.Qe5#
- 2.Qd6#
- 1...Rg2
- 2.Qe5#
- 2.Qd6#
- 2.Qxe4#
- 2.Qf5#
- 1...Rd3
- 2.Qe5#
- 2.Qxg4#
- 2.Qf5#
- 1...Rf3
- 2.Qe5#
- 2.Qd6#
- 1...Rg3
- 2.Qe5#
- 2.Qd6#
- 2.Qf5#
- 1...Rh4
- 2.Qe5#
- 2.Qd6#
- 2.Qf5#
- 1...Rh5
- 2.Qd6#
- 1...Bf2
- 2.Qe5#
- 2.Qd6#
- 2.Qf5#
- 1...Bd4
- 2.Qd6#
- 2.Qxg4#
- 2.Qf5#
- 1...Bc5
- 2.Qe5#
- 2.Qxg4#
- 2.Qf5#
- 1...Bf3
- 2.Qe5#
- 2.Qd6#
- 2.Qf5#
- 1...g3
- 2.Qe5#
- 2.Qd6#
- 2.Qg4#
- 2.Qf5#
- 1...h5
- 2.Sg5#
- 2.Qe5#
- 2.Qd6#
- 2.Qf5#
- 1...Bb6+!
- threat
- 1.Qc5?
- threat
- 2.Qd6#
- 2.Qc4#
- 2.Qd5#
- 2.Qe5#
- 2.Qf5#
- 2.Qc6#
- 1...Rf2
- 2.Qb6#
- 2.Qd6#
- 2.Qe5#
- 2.Qc6#
- 1...Rf3
- 2.Qd6#
- 2.Qe5#
- 2.Qc6#
- 1...Bf2
- 2.Qd6#
- 2.Qe5#
- 2.Qf5#
- 2.Qc6#
- 1...Bf3
- 2.Qd6#
- 2.Qe5#
- 2.Qf5#
- 2.Qc6#
- 1...Rc2
- 2.Qd6#
- 2.Qd5#
- 2.Qe5#
- 2.Qf5#
- 1...Rd2
- 2.Qe5#
- 2.Qf5#
- 1...Rc3
- 2.Qd6#
- 2.Qd5#
- 2.Qe5#
- 2.Qf5#
- 1...Rd3
- 2.Qe5#
- 2.Qf5#
- 1...Rh5
- 2.Qd6#
- 2.Qc6#
- 1...Bd4
- 2.Qd6#
- 2.Qc4#
- 2.Qd5#
- 2.Qf5#
- 2.Qc6#
- 1...e3
- 2.Qd6#
- 2.Qe5#
- 2.Qf5#
- 1...Bxc5!
- threat
- 1.Ba1?
- Keys
- 1.Bh4!
- threat
- 2.Rf6#
- 1...Rxh4
- 2.Qb3#
- 1...Rf2
- 2.Qb6#
- 1...Rf3
- 2.Qxe4#
- 1...Bf2
- 2.Ba2#
- 1...Bf3
- 2.Qb3#
- threat
- 1.Bh4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 4
- Sets
- R(c);N_GUARD::B(A),XR(c)
- R(c);S_CUTB(a)::QAR(C)
- R(c);S_CUTB(b)::QAR2(C),XP(e)
- R(d);N_GUARD::QAB(C)
- B(b);S_CUTR(c)::B(A)
- P(f);S_CUTR(d)::QAB(C)
- Tries
- Try
- B(D);
- Threat
- R1(B)
- Vars
- R(c);S_CUTB(a)::QAR(C)
- R(d);S_CUTB(b)::QAR2(C),XP(e)
- B(a);S_CUTR(c)::B(A)
- B(b);S_CUTR(d)::QAB(C)
- Refutation
- R(c);
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- R(d);N_SPINP(e),XQ(C)::R1(B)
- R(c);::R1(B)
- R(c);P_PINP(F)::R1(B)
- R(d);::R1(B)
- B(a);::B(A)
- Refutation
- R(c);XB(D)
- Try
- B(D);
- Threat
- R1(B)
- Vars
- R(c);S_CUTB(a)::QAR(C)
- R(d);S_CUTB(b)::QAR2(C),XP(e)
- B(a);S_CUTR(c)::B(A)
- Refutation
- B(b);
- Try
- B(D);
- Threat
- R1(B)
- Vars
- R(d);S_CUTB(b)::QAR2(C),XP(e)
- B(a);S_CUTR(c)::B(A)
- B(b);S_CUTR(d)::QAB(C)
- Refutation
- R(c);
- Try
- B(D);N_PINP(e)
- Threat
- R1(B)
- Vars
- R(c);S_CUTB(a)::QAR(C)
- B(a);S_CUTR(c)::B(A)
- B(b);S_CUTR(d)::QAB(C)
- Refutation
- R(d);
- Try
- B(D);
- Threat
- R1(B)
- Vars
- R(c);S_CUTB(a)::QAR(C)
- R(d);S_CUTB(b)::QAR2(C),XP(e)
- B(a);S_CUTR(c)::B(A)
- B(b);S_CUTR(d)::QAB(C)
- Refutation
- P(h);XB(D)
- Try
- Q(C);N_PINP(e),XB(a)
- Threat
- DUALS(2)
- Vars
- R(d);::QAR(C)
- B(b);::QAR(C)
- R(c);::QAB(C),XP(f)
- R(c);P_PINP(F)::QAB(C),XP(f)
- R(c);::QAR(C)
- R(d);::QAB(C),XP(f)
- R(d);P_PINP(F)::QAB(C),XP(f)
- P(e);::QAB(C),XP(f)
- P(f);::QAR(C)
- P(h);::QAR(C)
- Refutation
- R(c);
- Try
- Q(C);N_PINP(e)
- Threat
- DUALS(4)
- Vars
- R(c);::QAR1(C)
- R(d);::QAR1(C)
- Refutation
- B(a);XQ(C)
- Try
- Q(C);N_PINP(e)
- Threat
- DUALS(4)
- Vars
- R(d);::QAR1(C)
- Refutation
- B(a);CHECK
- Try
- Q(C);N_PINP(e)
- Threat
- DUALS(6)
- Refutation
- B(a);XQ(C)
- Try
- Actual
- B(D);
- Threat
- R1(B)
- Vars
- R(d);N_GUARD,XB(D)::QAB(C)
- R(c);S_CUTB(a)::QAR(C)
- R(d);S_CUTB(b)::QAR2(C),XP(e)
- B(a);S_CUTR(c)::B(A)
- B(b);S_CUTR(d)::QAB(C)
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).