MESON Chess Problem Database
Problem Display
PID: 225454 (7K/b1p2p2/Q4N1B/8/8/2rP1kp1/R3R3/1b3N2 w - - 0 1)
Draiska, Imants
3rd Comm., Praca, 1957
#2
8 + 7
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Ra3
- 2.Qc6#
- 1...Rb3
- 2.Qc6#
- 1...Rc5
- 2.Re3#
- 1...Rc6
- 2.Qxc6#
- 1...Be3
- 2.Rxe3#
- 1...Bc5
- 2.Qc6#
- 1...Bb8
- 2.Re3#
- 1...c5
- 2.Re3#
- 2.Qb7#
- 2.Qc6#
- 1...Ra3
- Tries
- 1.Qc4?
- threat
- 2.Qd5#
- 2.Qe4#
- 2.Qf4#
- 2.Qg4#
- 1...Rxd3
- 2.Qe4#
- 2.Qf4#
- 2.Qg4#
- 1...Bxa2
- 2.Qe4#
- 2.Qg4#
- 1...Bxd3
- 2.Qf4#
- 2.Qg4#
- 1...Rc2
- 2.Qe4#
- 2.Qg4#
- 1...Bc2
- 2.Qe4#
- 2.Qg4#
- 1...Bf2
- 2.Qd5#
- 2.Qe4#
- 1...Be3
- 2.Rxe3#
- 2.Qd5#
- 2.Qe4#
- 2.Qg4#
- 1...Bd4
- 2.Qd5#
- 1...c6
- 2.Qe4#
- 2.Qf4#
- 2.Qg4#
- 1...Rxc4!
- threat
- 1.Qb5?
- threat
- 2.Qd5#
- 2.Qf5#
- 2.Qh5#
- 1...Rxd3
- 2.Qf5#
- 2.Qh5#
- 1...Bxa2
- 2.Qh5#
- 1...Bxd3
- 2.Qh5#
- 1...Rc2
- 2.Qh5#
- 1...Bc2
- 2.Qh5#
- 1...Bf2
- 2.Qd5#
- 1...Rc5
- 2.Re3#
- 1...Be3
- 2.Rxe3#
- 2.Qd5#
- 2.Qh5#
- 1...Bc5
- 2.Qc6#
- 1...c5
- 2.Re3#
- 2.Qc6#
- 2.Qb7#
- 1...c6
- 2.Qf5#
- 2.Qh5#
- 1...Rc4!
- threat
- 1.Qb7+?
- 1...Rc6
- 2.Qxc6#
- 1...c6!
- 1...Rc6
- 1.Qe6?
- threat
- 2.Sd2#
- 2.Qg4#
- 2.Qd5#
- 2.Qf5#
- 2.Qe4#
- 1...Rxd3
- 2.Qg4#
- 2.Qf5#
- 2.Qe4#
- 1...Bxa2
- 2.Sd2#
- 2.Qg4#
- 2.Qe4#
- 1...Bxd3
- 2.Sd2#
- 2.Qg4#
- 1...Bf2
- 2.Qd5#
- 2.Qe4#
- 1...Rc4
- 2.Sd2#
- 1...Rc2
- 2.Qg4#
- 2.Qe4#
- 1...Rc5
- 2.Sd2#
- 2.Re3#
- 2.Qg4#
- 2.Qe3#
- 2.Qe4#
- 1...Bc2
- 2.Sd2#
- 2.Qg4#
- 2.Qe4#
- 1...Be3
- 2.Rxe3#
- 2.Qg4#
- 2.Qd5#
- 2.Qxe3#
- 2.Qe4#
- 1...g2
- 2.Qh3#
- 2.Qg4#
- 2.Qd5#
- 2.Qf5#
- 2.Qe4#
- 1...c6
- 2.Sd2#
- 2.Qg4#
- 2.Qf5#
- 2.Qe4#
- 1...fxe6!
- threat
- 1.Qxa7?
- threat
- 2.Re3#
- 2.Qe3#
- 1...Bxa2
- 2.Qe3#
- 1...Rc2
- 2.Qe3#
- 1...Bc2
- 2.Qe3#
- 1...Rc5
- 2.Re3#
- 1...c5
- 2.Re3#
- 2.Qb7#
- 2.Qa8#
- 1...Rxd3!
- threat
- 1.Qc4?
- Keys
- 1.d4!
- threat
- 2.Sd2#
- 1...Rc4
- 2.Re3#
- 1...Rc2
- 2.Qd3#
- 1...Rd3
- 2.Qc6#
- 1...Bd3
- 2.Re3#
- 1...g2
- 2.Rf2#
- threat
- 1.d4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 7
- Sets
- R(b);N_GUARD::QAB(E)
- R(b);S_CUTB(e)::R1(C)
- R(b);N_GUARD::QAB(E),XR(b)
- B(e);N_GUARD::R1(C),XB(e)
- B(e);S_CUTR(b)::QAB(E)
- B(e);N_GUARD::R1(C)
- Tries
- Try
- Q(E);
- Threat
- DUALS(4)
- Vars
- B(e);P_PINS(F)::QAB(E)
- Refutation
- R(b);XQ(E)
- Try
- Q(E);
- Threat
- DUALS(3)
- Vars
- B(a);XR(B)::QAB(E)
- B(a);XP(D)::QAB(E)
- R(b);::QAB(E)
- B(a);::QAB(E)
- B(e);::QAB(E)
- R(b);S_CUTB(e)::R1(C)
- B(e);S_CUTR(b)::QAB(E)
- Refutation
- R(b);
- Try
- Q(E);CHECK
- Vars
- R(b);N_GUARD,P_SPINR(b)::QAB(E),XR(b)
- Refutation
- P(f);P_SPINP(f)
- Try
- Q(E);
- Threat
- DUALS(5)
- Vars
- R(b);::S(A)
- Refutation
- P(g);XQ(E)
- Try
- Q(E);XB(e)
- Threat
- DUALS(2)
- Vars
- B(a);XR(B)::QAR1(E)
- R(b);::QAR1(E)
- B(a);::QAR1(E)
- R(b);::R1(C)
- Refutation
- R(b);XP(D)
- Try
- Actual
- P(D);
- Threat
- S(A)
- Vars
- R(b);N_GUARD::R1(C)
- R(b);N_GUARD,S_CUTB(a)::QAR2(E)
- R(b);N_GUARD,S_CUTB(a)::QAB(E)
- B(a);S_CUTR(b)::R1(C)
- P(d);N_GUARD::R1(C)
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