MESON Chess Problem Database
Problem Display
PID: 183222 (k1K1R3/2p5/2p2R2/1PQ5/3n2r1/6q1/5B2/8 w - - 0 1)
Charvat, Prokop
American Chess Bulletin, 1907
#2
6 + 6
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qxf2
- 2.Kxc7#
- 2.Qa3#
- 1...Qh2
- 2.Qa3#
- 1...Qf4
- 2.Qa3#
- 1...Qh4
- 2.Kxc7#
- 2.Qa3#
- 1...Qe5
- 2.Qa3#
- 1...Qg1
- 2.Kxc7#
- 2.Qa3#
- 1...Qg2
- 2.Kxc7#
- 2.Qa3#
- 1...Qa3
- 2.Kxc7#
- 2.Qxa3#
- 1...Qb3
- 2.Kxc7#
- 1...Qc3
- 2.Kxc7#
- 1...Qd3
- 2.Kxc7#
- 1...Qf3
- 2.Kxc7#
- 1...Qh3
- 2.Kxc7#
- 1...Rf4
- 2.Kxc7#
- 1...Sc2
- 2.Qa7#
- 2.Qxc6#
- 1...Se2
- 2.Qa7#
- 2.Qxc6#
- 1...Sb3
- 2.Qa7#
- 2.Qxc6#
- 1...Sf3
- 2.Qa7#
- 2.Qxc6#
- 1...Sxb5
- 2.Qxc6#
- 1...Sf5
- 2.Qa7#
- 2.Qxc6#
- 1...Se6
- 2.Qa7#
- 2.Qxc6#
- 1...cxb5
- 2.Ra6#
- 1...Qxf2
- Tries
- 1.Bxd4?
- threat
- 2.Qa7#
- 2.Qxc6#
- 1...cxb5
- 2.Ra6#
- 2.Qa7#
- 2.Qc6#
- 1...Qd6
- 2.Qa7#
- 1...Qg2
- 2.Kxc7#
- 2.Qa3#
- 2.Qa7#
- 1...Qa3
- 2.Kxc7#
- 2.Qxa3#
- 2.Qxc6#
- 1...Qc3
- 2.Kxc7#
- 2.Qa7#
- 1...Qf3
- 2.Kxc7#
- 2.Qa7#
- 1...Rxd4!
- threat
- 1.Qb6?
- threat
- 2.Kd7#
- 2.Qa5#
- 2.Qa6#
- 2.Qb7#
- 2.Qb8#
- 1...Sxb5
- 2.Kd7#
- 2.Qxc6#
- 2.Qb7#
- 2.Qb8#
- 1...Qd6
- 2.Qa5#
- 2.Qa6#
- 2.Qb7#
- 2.Qb8#
- 1...Qe5
- 2.Qa5#
- 2.Qa6#
- 2.Qb7#
- 2.Qb8#
- 1...Qa3
- 2.Kxc7#
- 2.Kd7#
- 2.Qb7#
- 2.Qb8#
- 1...Qc3
- 2.Kxc7#
- 2.Kd7#
- 2.Qa6#
- 2.Qb7#
- 2.Qb8#
- 1...Qe3
- 2.Qa5#
- 2.Qa6#
- 2.Qb7#
- 2.Qb8#
- 1...Re4
- 2.Qa5#
- 2.Qa6#
- 2.Qb7#
- 2.Qb8#
- 1...Rg7
- 2.Qa5#
- 2.Qa6#
- 2.Qb7#
- 2.Qb8#
- 1...Rg8
- 2.Qa5#
- 2.Qa6#
- 2.Qb7#
- 2.Qb8#
- 1...Sb3
- 2.Kd7#
- 2.Qa7#
- 2.Qa6#
- 2.Qxc6#
- 2.Qb7#
- 2.Qb8#
- 1...Se6
- 2.Qa5#
- 2.Qa7#
- 2.Qa6#
- 2.Qxc6#
- 2.Qb7#
- 2.Qb8#
- 1...cxb6!
- threat
- 1.Qc3?
- threat
- 2.Qa5#
- 1...Ka7
- 2.Qa5#
- 1...Sxb5
- 2.Qxc6#
- 1...Sb3
- 2.Qxc6#
- 1...Qxc3!
- threat
- 1.Qxc6+?
- 1...Ka7
- 2.Qb7#
- 2.Qa6#
- 1...Sxc6!
- 1...Ka7
- 1.bxc6?
- threat
- 2.Kd7#
- 2.Qa5#
- 1...Sxc6
- 2.Qxc6#
- 1...Qd6
- 2.Qa5#
- 1...Qa3
- 2.Kxc7#
- 2.Kd7#
- 2.Qxa3#
- 1...Qb3
- 2.Qa5#
- 1...Qc3
- 2.Kxc7#
- 2.Kd7#
- 1...Qd3
- 2.Kxc7#
- 2.Kd7#
- 1...Qe3
- 2.Qa5#
- 1...Re4
- 2.Qa5#
- 1...Rg5
- 2.Kd7#
- 1...Rg7
- 2.Qa5#
- 1...Rg8
- 2.Qa5#
- 1...Sb3
- 2.Kd7#
- 2.Qa7#
- 1...Sb5
- 2.Kd7#
- 1...Se6
- 2.Qa7#
- 2.Qa5#
- 1...Qe5!
- threat
- 1.b6?
- threat
- 2.Qa5#
- 2.b7#
- 1...Qe5
- 2.b7#
- 1...Qa3
- 2.Kxc7#
- 2.Qxa3#
- 2.b7#
- 1...Qb3
- 2.Kxc7#
- 2.Qa5#
- 1...Qc3
- 2.Kxc7#
- 2.b7#
- 1...Qd3
- 2.Kxc7#
- 2.b7#
- 1...Rg5
- 2.b7#
- 1...Sb3
- 2.Qxc6#
- 2.b7#
- 1...Sb5
- 2.Qxc6#
- 2.b7#
- 1...cxb6!
- threat
- 1.Bxd4?
- Keys
- 1.Rf3!
- threat
- 2.Qa3#
- 1...Qxf3
- 2.Kxc7#
- 1...Sxf3
- 2.Qa7#
- 2.Qxc6#
- 1...Sxb5
- 2.Qxc6#
- 1...Qd6
- 2.Ra3#
- 1...Sc2
- 2.Qa7#
- 2.Qxc6#
- 1...Se2
- 2.Qa7#
- 2.Qxc6#
- 1...Sb3
- 2.Qa7#
- 2.Qxc6#
- 1...Sf5
- 2.Qa7#
- 2.Qxc6#
- 1...Se6
- 2.Qa7#
- 2.Qxc6#
- threat
- 1.Rf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 9
- Sets
- Q(a);N_GUARD::QAR(C)
- Q(a);::R(F)+K(E),XP(e)
- R(c);::R(F)+K(E),XP(e)
- S(b);N_GUARD,XP(B)::QAB(C),XP(d)
- P(d);OGATE,XP(B)::R(D)
- Tries
- Try
- B(A);XS(b)
- Threat
- DUALS(2)
- Vars
- Q(a);::QAR1(C)
- Refutation
- R(c);XB(A)
- Try
- Q(C);
- Threat
- DUALS(5)
- Refutation
- P(e);XQ(C)
- Try
- Q(C);
- Threat
- QAR(C)
- Vars
- K(f);P-FLIGHT,P_SPINS(b)::QAR2(C)
- S(b);N_GUARD,XP(B)::QAB(C),XP(d)
- S(b);N_GUARD::QAB(C),XP(d)
- Refutation
- Q(a);XQ(C)
- Try
- Q(C);CHECK,XP(d)
- Refutation
- S(b);XQ(C)
- Try
- P(B);XP(d)
- Threat
- DUALS(2)
- Vars
- S(b);OGATE,XP(B)::QAB(C),XS(b)
- Q(a);::QAR(C)
- R(c);::QAR(C)
- R(c);::R(F)+K(E)
- R(c);P_PINR(F)::QAR(C)
- S(b);::R(F)+K(E)
- Refutation
- Q(a);
- Try
- P(B);
- Threat
- DUALS(2)
- Vars
- Q(a);::P(B)
- R(c);::P(B)
- Refutation
- P(e);XP(B)
- Try
- Actual
- R(D);
- Threat
- QAR(C)
- Vars
- Q(a);XR(D)::R(F)+K(E),XP(e)
- S(b);N_GUARD,XP(B)::QAB(C),XP(d)
- Q(a);N_GUARD::R(D)
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