MESON Chess Problem Database
Problem Display
PID: 239272 (r4BB1/4p3/n1p1Pkb1/2p2p1P/3R3K/2R4p/8/Q4n1r w - - 0 1)
Pituk, Alexander
Sachove umeni (Ceskoslovensky sach), 1961
#2
8 + 11
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ke5
- 2.Bg7#
- 1...Ke5
- Tries
- 1.Rc1?
- threat
- 2.Rdd1#
- 2.Rd2#
- 2.Rd3#
- 2.Ra4#
- 2.Rb4#
- 2.Rdc4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Ke5
- 2.Bg7#
- 1...Bxh5
- 2.Rg4#
- 1...cxd4
- 2.Qxd4#
- 1...Bf7
- 2.Re4#
- 2.Rd6#
- 1...f4
- 2.Rxf4#
- 2.Rd5#
- 1...Rh2
- 2.Rd2#
- 1...Rb8
- 2.Rb4#
- 1...Rd8
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rxd8#
- 1...Sd2
- 2.Rxd2#
- 2.Rd3#
- 2.Ra4#
- 2.Rb4#
- 2.Rdc4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Sc7
- 2.Ra4#
- 1...Sb8
- 2.Ra4#
- 1...c4
- 2.Rdxc4#
- 1...Sb4!
- threat
- 1.Ra3?
- threat
- 2.Rd1#
- 2.Rd2#
- 2.Rdd3#
- 2.Rda4#
- 2.Rb4#
- 2.Rc4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Ke5
- 2.Bg7#
- 1...Bxh5
- 2.Rg4#
- 1...cxd4
- 2.Qxd4#
- 1...Bf7
- 2.Re4#
- 2.Rd6#
- 1...f4
- 2.Rxf4#
- 2.Rd5#
- 1...Sb4
- 2.Rd1#
- 2.Rd2#
- 2.Rdd3#
- 2.Rxb4#
- 2.Rc4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Rh2
- 2.Rd2#
- 1...Rb8
- 2.Rb4#
- 1...Rd8
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rxd8#
- 1...Sh2
- 2.Rd1#
- 1...Se3
- 2.Rd1#
- 1...Sg3
- 2.Rd1#
- 1...c4
- 2.Rxc4#
- 1...Sd2!
- threat
- 1.Rd1?
- threat
- 2.Rcc1#
- 2.Rc2#
- 2.Ra3#
- 2.Rb3#
- 2.Rcd3#
- 2.Re3#
- 2.Rf3#
- 2.Rg3#
- 2.Rxh3#
- 2.Rc4#
- 2.Rxc5#
- 1...Ke5
- 2.Rc4#
- 1...Bxh5
- 2.Rg3#
- 1...Bf7
- 2.Re3#
- 1...f4
- 2.Rxc5#
- 1...Sb4
- 2.Ra3#
- 1...Rh2
- 2.Rc2#
- 1...Rb8
- 2.Rb3#
- 1...Se3
- 2.Rcc1#
- 2.Rc2#
- 2.Ra3#
- 2.Rb3#
- 2.Rcd3#
- 2.Rxe3#
- 2.Rc4#
- 2.Rxc5#
- 1...Sg3
- 2.Rcc1#
- 2.Rc2#
- 2.Ra3#
- 2.Rb3#
- 2.Rcd3#
- 2.Re3#
- 2.Rf3#
- 2.Rxg3#
- 2.Rc4#
- 2.Rxc5#
- 1...Sc7
- 2.Ra3#
- 1...Sb8
- 2.Ra3#
- 1...h2
- 2.Rcc1#
- 2.Rc2#
- 2.Ra3#
- 2.Rb3#
- 2.Rcd3#
- 2.Re3#
- 2.Rf3#
- 2.Rg3#
- 2.Rh3#
- 2.Rc4#
- 2.Rxc5#
- 1...c4
- 2.Rxc4#
- 1...Rd8!
- threat
- 1.Rd2?
- threat
- 2.Rc1#
- 2.Rcc2#
- 2.Ra3#
- 2.Rb3#
- 2.Rcd3#
- 2.Re3#
- 2.Rf3#
- 2.Rg3#
- 2.Rxh3#
- 2.Rc4#
- 2.Rxc5#
- 1...Ke5
- 2.Rc4#
- 1...Bxh5
- 2.Rg3#
- 1...Sxd2
- 2.Rc1#
- 1...Bf7
- 2.Re3#
- 1...f4
- 2.Rxc5#
- 1...Sb4
- 2.Ra3#
- 1...Rb8
- 2.Rb3#
- 1...Sh2
- 2.Rc1#
- 1...Se3
- 2.Rc1#
- 1...Sg3
- 2.Rc1#
- 1...Sc7
- 2.Ra3#
- 1...Sb8
- 2.Ra3#
- 1...h2
- 2.Rc1#
- 2.Rcc2#
- 2.Ra3#
- 2.Rb3#
- 2.Rcd3#
- 2.Re3#
- 2.Rf3#
- 2.Rg3#
- 2.Rh3#
- 2.Rc4#
- 2.Rxc5#
- 1...c4
- 2.Rxc4#
- 1...Rd8!
- threat
- 1.Ra4?
- threat
- 2.Rc1#
- 2.Rc2#
- 2.Rca3#
- 2.Rb3#
- 2.Rd3#
- 2.Re3#
- 2.Rf3#
- 2.Rg3#
- 2.Rxh3#
- 2.Rcc4#
- 2.Rxc5#
- 1...Ke5
- 2.Rd3#
- 1...Bxh5
- 2.Rg3#
- 1...Bf7
- 2.Re3#
- 1...f4
- 2.Rxc5#
- 1...Rh2
- 2.Rc2#
- 1...Rb8
- 2.Rb3#
- 1...Sd2
- 2.Rc1#
- 1...Sh2
- 2.Rc1#
- 1...Se3
- 2.Rc1#
- 1...Sg3
- 2.Rc1#
- 1...h2
- 2.Rc1#
- 2.Rc2#
- 2.Rca3#
- 2.Rb3#
- 2.Rd3#
- 2.Re3#
- 2.Rf3#
- 2.Rg3#
- 2.Rh3#
- 2.Rcc4#
- 2.Rxc5#
- 1...c4
- 2.Rcxc4#
- 1...Rd8!
- threat
- 1.Rb4?
- threat
- 2.Rc1#
- 2.Rc2#
- 2.Ra3#
- 2.Rcb3#
- 2.Rd3#
- 2.Re3#
- 2.Rf3#
- 2.Rg3#
- 2.Rxh3#
- 2.Rcc4#
- 2.Rxc5#
- 1...Ke5
- 2.Rd3#
- 1...Bxh5
- 2.Rg3#
- 1...Sxb4
- 2.Ra3#
- 1...cxb4
- 2.Rc1#
- 2.Rc2#
- 2.Ra3#
- 2.Rb3#
- 2.Rd3#
- 2.Re3#
- 2.Rf3#
- 2.Rg3#
- 2.Rxh3#
- 2.Rc4#
- 2.Rc5#
- 2.Rxc6#
- 1...Bf7
- 2.Re3#
- 1...f4
- 2.Rxc5#
- 1...Rh2
- 2.Rc2#
- 1...Sd2
- 2.Rc1#
- 1...Sh2
- 2.Rc1#
- 1...Se3
- 2.Rc1#
- 1...Sg3
- 2.Rc1#
- 1...Sc7
- 2.Ra3#
- 1...Sb8
- 2.Ra3#
- 1...h2
- 2.Rc1#
- 2.Rc2#
- 2.Ra3#
- 2.Rcb3#
- 2.Rd3#
- 2.Re3#
- 2.Rf3#
- 2.Rg3#
- 2.Rh3#
- 2.Rcc4#
- 2.Rxc5#
- 1...c4
- 2.Rcxc4#
- 1...Rd8!
- threat
- 1.Re4?
- threat
- 2.Rc1#
- 2.Rc2#
- 2.Ra3#
- 2.Rb3#
- 2.Rd3#
- 2.Rce3#
- 2.Rf3#
- 2.Rg3#
- 2.Rxh3#
- 2.Rcc4#
- 2.Rxc5#
- 1...Bxh5
- 2.Rg3#
- 1...fxe4
- 2.Rf3#
- 2.Rxc5#
- 1...f4
- 2.Rxc5#
- 1...Sb4
- 2.Ra3#
- 1...Rh2
- 2.Rc2#
- 1...Rb8
- 2.Rb3#
- 1...Sd2
- 2.Rc1#
- 1...Sh2
- 2.Rc1#
- 1...Se3
- 2.Rc1#
- 1...Sg3
- 2.Rc1#
- 1...Sc7
- 2.Ra3#
- 1...Sb8
- 2.Ra3#
- 1...h2
- 2.Rc1#
- 2.Rc2#
- 2.Ra3#
- 2.Rb3#
- 2.Rd3#
- 2.Rce3#
- 2.Rf3#
- 2.Rg3#
- 2.Rh3#
- 2.Rcc4#
- 2.Rxc5#
- 1...c4
- 2.Rcxc4#
- 1...Rd8!
- threat
- 1.Rg4?
- threat
- 2.Rc1#
- 2.Rc2#
- 2.Ra3#
- 2.Rb3#
- 2.Rd3#
- 2.Re3#
- 2.Rf3#
- 2.Rcg3#
- 2.Rxh3#
- 2.Rcc4#
- 2.Rxc5#
- 1...Ke5
- 2.Rd3#
- 1...fxg4
- 2.Rf3#
- 2.Rxc5#
- 1...Bf7
- 2.Re3#
- 1...f4
- 2.Rxc5#
- 1...Sb4
- 2.Ra3#
- 1...Rh2
- 2.Rc2#
- 1...Rb8
- 2.Rb3#
- 1...Sd2
- 2.Rc1#
- 1...Sh2
- 2.Rc1#
- 1...Se3
- 2.Rc1#
- 1...Sg3
- 2.Rc1#
- 1...Sc7
- 2.Ra3#
- 1...Sb8
- 2.Ra3#
- 1...h2
- 2.Rc1#
- 2.Rc2#
- 2.Ra3#
- 2.Rb3#
- 2.Rd3#
- 2.Re3#
- 2.Rf3#
- 2.Rcg3#
- 2.Rh3#
- 2.Rcc4#
- 2.Rxc5#
- 1...c4
- 2.Rcxc4#
- 1...Rd8!
- threat
- 1.Rd5?
- threat
- 2.Rc1#
- 2.Rc2#
- 2.Ra3#
- 2.Rb3#
- 2.Rcd3#
- 2.Re3#
- 2.Rf3#
- 2.Rg3#
- 2.Rxh3#
- 2.Rc4#
- 2.Rcxc5#
- 1...Bxh5
- 2.Rg3#
- 1...Bf7
- 2.Re3#
- 1...Sb4
- 2.Ra3#
- 1...Rh2
- 2.Rc2#
- 1...Rb8
- 2.Rb3#
- 1...Sd2
- 2.Rc1#
- 1...Sh2
- 2.Rc1#
- 1...Se3
- 2.Rc1#
- 1...Sg3
- 2.Rc1#
- 1...Sc7
- 2.Ra3#
- 1...Sb8
- 2.Ra3#
- 1...h2
- 2.Rc1#
- 2.Rc2#
- 2.Ra3#
- 2.Rb3#
- 2.Rcd3#
- 2.Re3#
- 2.Rf3#
- 2.Rg3#
- 2.Rh3#
- 2.Rc4#
- 2.Rcxc5#
- 1...c4
- 2.Rxc4#
- 1...cxd5!
- threat
- 1.Rd6?
- threat
- 2.Rc1#
- 2.Rc2#
- 2.Ra3#
- 2.Rb3#
- 2.Rcd3#
- 2.Re3#
- 2.Rf3#
- 2.Rg3#
- 2.Rxh3#
- 2.Rc4#
- 2.Rxc5#
- 1...Bxh5
- 2.Rg3#
- 1...f4
- 2.Rxc5#
- 1...Sb4
- 2.Ra3#
- 1...Rh2
- 2.Rc2#
- 1...Rb8
- 2.Rb3#
- 1...Sd2
- 2.Rc1#
- 1...Sh2
- 2.Rc1#
- 1...Se3
- 2.Rc1#
- 1...Sg3
- 2.Rc1#
- 1...Sc7
- 2.Ra3#
- 1...Sb8
- 2.Ra3#
- 1...h2
- 2.Rc1#
- 2.Rc2#
- 2.Ra3#
- 2.Rb3#
- 2.Rcd3#
- 2.Re3#
- 2.Rf3#
- 2.Rg3#
- 2.Rh3#
- 2.Rc4#
- 2.Rxc5#
- 1...c4
- 2.Rxc4#
- 1...Ke5!
- threat
- 1.Rd8?
- threat
- 2.Rc1#
- 2.Rc2#
- 2.Ra3#
- 2.Rb3#
- 2.Rcd3#
- 2.Re3#
- 2.Rf3#
- 2.Rg3#
- 2.Rxh3#
- 2.Rc4#
- 2.Rxc5#
- 1...Ke5
- 2.Rc4#
- 1...Bxh5
- 2.Rg3#
- 1...Bf7
- 2.Re3#
- 1...f4
- 2.Rxc5#
- 1...Sb4
- 2.Ra3#
- 1...Rh2
- 2.Rc2#
- 1...Rb8
- 2.Rb3#
- 1...Sd2
- 2.Rc1#
- 1...Sh2
- 2.Rc1#
- 1...Se3
- 2.Rc1#
- 1...Sg3
- 2.Rc1#
- 1...Sc7
- 2.Ra3#
- 1...Sb8
- 2.Ra3#
- 1...h2
- 2.Rc1#
- 2.Rc2#
- 2.Ra3#
- 2.Rb3#
- 2.Rcd3#
- 2.Re3#
- 2.Rf3#
- 2.Rg3#
- 2.Rh3#
- 2.Rc4#
- 2.Rxc5#
- 1...c4
- 2.Rxc4#
- 1...Rxd8!
- threat
- 1.Rc1?
- Keys
- 1.Rd7!
- threat
- 2.Rc1#
- 2.Rc2#
- 2.Ra3#
- 2.Rb3#
- 2.Rcd3#
- 2.Re3#
- 2.Rf3#
- 2.Rg3#
- 2.Rxh3#
- 2.Rc4#
- 2.Rxc5#
- 1...Ke5
- 2.Rc4#
- 1...Bxh5
- 2.Rg3#
- 1...Bf7
- 2.Re3#
- 1...f4
- 2.Rxc5#
- 1...Sb4
- 2.Ra3#
- 1...Rh2
- 2.Rc2#
- 1...Rb8
- 2.Rb3#
- 1...Sd2
- 2.Rc1#
- 1...Sh2
- 2.Rc1#
- 1...Se3
- 2.Rc1#
- 1...Sg3
- 2.Rc1#
- 1...Sc7
- 2.Ra3#
- 1...Sb8
- 2.Ra3#
- 1...h2
- 2.Rc1#
- 2.Rc2#
- 2.Ra3#
- 2.Rb3#
- 2.Rcd3#
- 2.Re3#
- 2.Rf3#
- 2.Rg3#
- 2.Rh3#
- 2.Rc4#
- 2.Rxc5#
- 1...c4
- 2.Rxc4#
- threat
- 1.Rd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 13
- REMOVED MATES = 0
- Sets
- K(h);S_FLIGHT::B(G)
- Tries
- Try
- R(B);
- Threat
- DUALS(13)
- Vars
- K(h);S_FLIGHT::B(G)
- B(i);XP(E)::QAB(A)+R(C)
- P(d);OGATE,P_SPINP(d),XR(C)::QAB(A),XP(d)
- R(b);::QAB(A)+R(C)
- R(k);::QAB(A)+R(C)
- S(f);::QAB(A)+R(C)
- P(d);::QAB(A)+R(C),XP(d)
- Refutation
- S(f);
- Try
- R(B);
- Threat
- DUALS(13)
- Vars
- K(h);S_FLIGHT::B(G)
- B(i);XP(E)::QAB(A)+R(C)
- P(d);OGATE,P_SPINP(d),XR(C)::QAB(A),XP(d)
- R(b);::QAB(A)+R(C)
- R(k);::QAB(A)+R(C)
- S(a);::QAB(A)+R(C)
- P(d);::QAB(A)+R(C),XP(d)
- Refutation
- S(a);
- Try
- R(C);
- Threat
- DUALS(11)
- Vars
- K(h);S_FLIGHT::QAB(A)+R(B)
- B(i);XP(E)::QAB(A)+R(B)
- B(i);::QAB(A)+R(B)
- P(e);::QAB(A)+R(B),XP(d)
- S(f);::QAB(A)+R(B)
- R(b);::QAB(A)+R(B)
- R(k);::QAB(A)+R(B)
- P(d);::QAB(A)+R(B),XP(d)
- Refutation
- R(k);
- Try
- R(C);
- Threat
- DUALS(11)
- Vars
- K(h);S_FLIGHT::QAB(A)+R(B)
- B(i);XP(E)::QAB(A)+R(B)
- S(a);XR(C)::QAB(A)+R(B)
- B(i);::QAB(A)+R(B)
- P(e);::QAB(A)+R(B),XP(d)
- S(f);::QAB(A)+R(B)
- R(k);::QAB(A)+R(B)
- S(a);::QAB(A)+R(B)
- P(d);::QAB(A)+R(B),XP(d)
- Refutation
- R(k);
- Try
- R(C);
- Threat
- DUALS(11)
- Vars
- K(h);S_FLIGHT::QAB(A)+R(B)
- B(i);XP(E)::QAB(A)+R(B)
- B(i);::QAB(A)+R(B)
- P(e);::QAB(A)+R(B),XP(d)
- R(b);::QAB(A)+R(B)
- R(k);::QAB(A)+R(B)
- S(a);::QAB(A)+R(B)
- P(d);::QAB(A)+R(B),XP(d)
- Refutation
- R(k);
- Try
- R(C);
- Threat
- DUALS(11)
- Vars
- K(h);S_FLIGHT::QAB(A)+R(B)
- B(i);XP(E)::QAB(A)+R(B)
- S(f);XR(C)::QAB(A)+R(B)
- B(i);::QAB(A)+R(B)
- P(e);::QAB(A)+R(B),XP(d)
- R(b);::QAB(A)+R(B)
- S(a);::QAB(A)+R(B)
- S(f);::QAB(A)+R(B)
- P(d);::QAB(A)+R(B),XP(d)
- Refutation
- R(k);
- Try
- R(C);
- Threat
- DUALS(11)
- Vars
- B(i);XP(E)::QAB(A)+R(B)
- P(e);::QAB(A)+R(B),XP(d)
- S(f);::QAB(A)+R(B)
- R(b);::QAB(A)+R(B)
- R(k);::QAB(A)+R(B)
- S(a);::QAB(A)+R(B)
- P(d);::QAB(A)+R(B),XP(d)
- Refutation
- R(k);
- Try
- R(C);
- Threat
- DUALS(11)
- Vars
- K(h);S_FLIGHT::QAB(A)+R(B)
- B(i);::QAB(A)+R(B)
- P(e);::QAB(A)+R(B),XP(d)
- S(f);::QAB(A)+R(B)
- R(b);::QAB(A)+R(B)
- R(k);::QAB(A)+R(B)
- S(a);::QAB(A)+R(B)
- P(d);::QAB(A)+R(B),XP(d)
- Refutation
- R(k);
- Try
- R(C);
- Threat
- DUALS(11)
- Vars
- B(i);XP(E)::QAB(A)+R(B)
- B(i);::QAB(A)+R(B)
- S(f);::QAB(A)+R(B)
- R(b);::QAB(A)+R(B)
- R(k);::QAB(A)+R(B)
- S(a);::QAB(A)+R(B)
- P(d);::QAB(A)+R(B),XP(d)
- Refutation
- P(g);XR(C)
- Try
- R(C);
- Threat
- DUALS(11)
- Vars
- B(i);XP(E)::QAB(A)+R(B)
- P(e);::QAB(A)+R(B),XP(d)
- S(f);::QAB(A)+R(B)
- R(b);::QAB(A)+R(B)
- R(k);::QAB(A)+R(B)
- S(a);::QAB(A)+R(B)
- P(d);::QAB(A)+R(B),XP(d)
- Refutation
- K(h);S_FLIGHT
- Try
- R(C);
- Threat
- DUALS(11)
- Vars
- K(h);S_FLIGHT::QAB(A)+R(B)
- B(i);XP(E)::QAB(A)+R(B)
- B(i);::QAB(A)+R(B)
- P(e);::QAB(A)+R(B),XP(d)
- S(f);::QAB(A)+R(B)
- R(b);::QAB(A)+R(B)
- R(k);::QAB(A)+R(B)
- S(a);::QAB(A)+R(B)
- P(d);::QAB(A)+R(B),XP(d)
- Refutation
- R(k);XR(C)
- Try
- Actual
- R(C);
- Threat
- DUALS(11)
- Vars
- K(h);S_FLIGHT::QAB(A)+R(B)
- B(i);XP(E)::QAB(A)+R(B)
- B(i);::QAB(A)+R(B)
- P(e);::QAB(A)+R(B),XP(d)
- S(f);::QAB(A)+R(B)
- R(b);::QAB(A)+R(B)
- R(k);::QAB(A)+R(B)
- S(a);::QAB(A)+R(B)
- P(d);::QAB(A)+R(B),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).