MESON Chess Problem Database
Problem Display
PID: 243538 (8/2QR4/rp4B1/3N3r/bKNk1PP1/p1pP3q/1b6/3R4 w - - 0 1)
Burda, Josef
Sachove umeni (Ceskoslovensky sach), 2005
#2
10 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qxd3
- 2.Rxd3#
- 1...Rh4
- 2.Qe5#
- 1...Rxd5
- 2.Qe5#
- 1...Re5
- 2.Qxe5#
- 1...Rh6
- 2.Qe5#
- 1...Rh7
- 2.Qe5#
- 1...Rh8
- 2.Qe5#
- 1...Ra7
- 2.Qxb6#
- 1...Ra8
- 2.Qxb6#
- 1...b5
- 2.Qc5#
- 1...Qxd3
- Tries
- 1.Sxb2?
- threat
- 2.Qxc3#
- 2.Qc4#
- 1...Rxd5
- 2.Qe5#
- 1...Bxd7
- 2.Qc4#
- 1...cxb2
- 2.Qc3#
- 2.Qc4#
- 1...Bb3
- 2.Qxc3#
- 1...Bb5
- 2.Qxc3#
- 1...c2
- 2.Qc3#
- 2.Qc4#
- 1...b5
- 2.Qxc3#
- 2.Qc5#
- 1...Bc6!
- threat
- 1.Sxa3?
- threat
- 2.Qc4#
- 1...Rxd5
- 2.Qe5#
- 1...Bb3
- 2.Sb5#
- 1...Bb5
- 2.Sc2#
- 2.Sxb5#
- 1...Bc6
- 2.Sc2#
- 1...b5
- 2.Qc5#
- 1...Bxa3+!
- threat
- 1.Sce3?
- threat
- 2.Qc4#
- 1...Rxd5
- 2.Sf5#
- 2.Qe5#
- 1...Bb5
- 2.Sc2#
- 1...Bc6
- 2.Sc2#
- 1...b5
- 2.Qc5#
- 1...Bb3!
- threat
- 1.Sa5?
- threat
- 2.Qc4#
- 1...Rxd5
- 2.Qe5#
- 1...Bb3
- 2.Sxb3#
- 2.Sc6#
- 1...Bb5
- 2.Sb3#
- 1...Bc6
- 2.Sb3#
- 2.Sxc6#
- 1...b5
- 2.Qc5#
- 1...bxa5+!
- threat
- 1.Se5?
- threat
- 2.Qc4#
- 1...Bb3
- 2.Sc6#
- 1...Bc6
- 2.Sxc6#
- 1...b5
- 2.Qc5#
- 1...Bb5!
- threat
- 1.Scxb6?
- threat
- 2.Qc4#
- 2.Qc5#
- 1...Rxb6+
- 2.Qxb6#
- 1...Rxd5
- 2.Qe5#
- 2.Qc5#
- 1...Ra5
- 2.Qc4#
- 1...Bb3
- 2.Qc5#
- 1...Bb5
- 2.Qc5#
- 1...Bc6!
- threat
- 1.Sd6?
- threat
- 2.Qc4#
- 1...Kxd5
- 2.Qc4#
- 1...Rxd5
- 2.Sf5#
- 1...Bb3
- 2.Sb5#
- 1...Bb5
- 2.Sxb5#
- 1...b5
- 2.Qc5#
- 1...Bc6!
- threat
- 1.Sxc3+?
- 1...Rd5
- 2.Se2#
- 2.Rxd5#
- 2.Qe5#
- 1...Bxd7!
- 1...Rd5
- 1.Sde3+?
- 1...Rd5
- 2.Sf5#
- 2.Rxd5#
- 2.Qe5#
- 1...Bxd7!
- 1...Rd5
- 1.Sdxb6+?
- 1...Rd5
- 2.Rxd5#
- 2.Qe5#
- 2.Qc5#
- 1...Bxd7!
- 1...Rd5
- 1.Sf6+?
- 1...Rd5
- 2.Rxd5#
- 2.Qe5#
- 1...Bxd7!
- 1...Rd5
- 1.Se7+?
- 1...Rd5
- 2.Sf5#
- 2.Rxd5#
- 2.Qe5#
- 1...Bxd7!
- 1...Rd5
- 1.Sxb2?
- Keys
- 1.Sd2!
- threat
- 2.Qc4#
- 1...Qxd3
- 2.Sf3#
- 1...Rxd5
- 2.Qe5#
- 1...Bb3
- 2.Sxb3#
- 1...Bb5
- 2.Sb3#
- 1...Bc6
- 2.Sb3#
- 1...b5
- 2.Qc5#
- threat
- 1.Sd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 7
- Sets
- Q(d);OGATE,P_SPINQ(d),XP(B)::R1(A),XQ(d)
- R(g);N_GUARD::QAB1(I)
- R(g);N_GUARD,P_SPINR(g),XS(G)::QAB1(I)
- R(g);N_GUARD::QAB1(I),XR(g)
- R(h);N_GUARD::QAB(I),XP(i)
- P(i);N_GUARD::QAB1(I)
- Tries
- Try
- S(D);XB(a)
- Threat
- DUALS(2)
- Vars
- R(g);N_GUARD,P_SPINR(g),XS(G)::QAB1(I)
- B(e);XR(J)::QAR1(I)
- B(e);::QAB1(I),XP(c)
- Refutation
- B(e);
- Try
- S(D);XP(b)
- Threat
- QAR1(I)
- Vars
- R(g);N_GUARD,P_SPINR(g),XS(G)::QAB1(I)
- B(e);N_GUARD::S(D)
- P(i);N_GUARD::QAB1(I)
- Refutation
- B(a);CHECK,XS(D)
- Try
- S(D);
- Threat
- QAR1(I)
- Vars
- B(e);N_GUARD::S(D)
- P(i);N_GUARD::QAB1(I)
- Refutation
- B(e);
- Try
- S(D);
- Threat
- QAR1(I)
- Vars
- R(g);N_GUARD,P_SPINR(g),XS(G)::QAB1(I)
- B(e);N_GUARD::S(D)
- P(i);N_GUARD::QAB1(I)
- Refutation
- P(i);CHECK,XS(D)
- Try
- S(D);
- Threat
- QAR1(I)
- Vars
- B(e);N_GUARD::S(D)
- B(e);N_GUARD::S(D),XB(e)
- P(i);N_GUARD::QAB1(I)
- Refutation
- B(e);
- Try
- S(D);XP(i)
- Threat
- DUALS(2)
- Vars
- R(h);CHECK,OGATE,XS(D)::QAB(I),XR(h)
- R(h);::QAR1(I)
- B(e);::QAB1(I)
- Refutation
- B(e);
- Try
- S(D);
- Threat
- QAR1(I)
- Vars
- K(f);P-FLIGHT,XS(G)::QAB1(I)
- R(g);N_GUARD,XS(G)::S(D)
- B(e);N_GUARD::S(D)
- B(e);N_GUARD::S(D),XB(e)
- P(i);N_GUARD::QAB1(I)
- Refutation
- B(e);
- Try
- S(G);CHECK,XP(c)
- Refutation
- B(e);XR(J)
- Try
- S(G);CHECK
- Refutation
- B(e);XR(J)
- Try
- S(G);CHECK,XP(i)
- Refutation
- B(e);XR(J)
- Try
- S(G);CHECK
- Refutation
- B(e);XR(J)
- Try
- S(G);CHECK
- Refutation
- B(e);XR(J)
- Try
- Actual
- S(D);
- Threat
- QAR1(I)
- Vars
- Q(d);N_GUARD,XP(B)::S(D)
- R(g);N_GUARD,P_SPINR(g),XS(G)::QAB1(I)
- B(e);N_GUARD::S(D),XB(e)
- B(e);N_GUARD::S(D)
- P(i);N_GUARD::QAB1(I)
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