MESON Chess Problem Database
Problem Display
PID: 70977 (1b4b1/2q5/4N3/1B5R/R1n1kp2/nQ4PN/K4P1r/B7 w - - 0 1)
Gamage, Frederick
1st Comm., American Chess Bulletin, 1945
#2
10 + 8
| 6479 | Problemschach (Sidler) | 1968 |
| 5397 | Frederick Gamage (Prcic) | 2004 |
| 136 | Problem Observer | 2015 |
SOLUTION
- SOUND
- Sets
- 1...Qa5
- 2.Sc5#
- 1...Qd8
- 2.Sc5#
- 1...Qc5
- 2.Sxc5#
- 1...Qc6
- 2.Bxc6#
- 1...Qa7
- 2.Bc6#
- 1...Qb7
- 2.Sc5#
- 1...Qd7
- 2.Sc5#
- 1...Qe7
- 2.Bc6#
- 1...Qf7
- 2.Sc5#
- 2.Bc6#
- 1...Qg7
- 2.Sc5#
- 2.Bc6#
- 1...Qh7
- 2.Sc5#
- 2.Bc6#
- 1...Rh1
- 2.f3#
- 1...Rxf2+
- 2.Sxf2#
- 1...Rxh3
- 2.f3#
- 1...Sc2
- 2.f3#
- 1...fxg3
- 2.Qe3#
- 1...f3
- 2.Qe3#
- 1...Qa5
- Tries
- 1.Shxf4?
- threat
- 2.Qd3#
- 2.Qe3#
- 1...Qxf4
- 2.Sc5#
- 2.Bc6#
- 1...Rxh5
- 2.Qd3#
- 1...Qb6
- 2.Qd3#
- 1...Qd6
- 2.Qe3#
- 1...Qd8
- 2.Sc5#
- 2.Qe3#
- 1...Qc5
- 2.Sxc5#
- 2.Qd3#
- 1...Qa7
- 2.Bc6#
- 2.Qd3#
- 1...Qd7
- 2.Sc5#
- 2.Qe3#
- 1...Ba7
- 2.Qd3#
- 1...Sc2
- 2.Qd3#
- 2.f3#
- 1...Rxf2+!
- threat
- 1.Shg5+?
- 1...Kd5
- 2.Qd3#
- 1...Kf5!
- 1...Kd5
- 1.Sexf4?
- threat
- 2.Qd3#
- 2.Qe3#
- 1...Rxf2+
- 2.Sxf2#
- 1...Qb6
- 2.Qd3#
- 1...Qd6
- 2.Qe3#
- 1...Qd8
- 2.Qe3#
- 1...Qc5
- 2.Qd3#
- 1...Qa7
- 2.Qd3#
- 1...Qd7
- 2.Qe3#
- 1...Ba7
- 2.Qd3#
- 1...Sc2
- 2.Qd3#
- 2.f3#
- 1...Qxf4!
- threat
- 1.Sxc7?
- threat
- 2.Re5#
- 1...Rxf2+
- 2.Sxf2#
- 1...Bxc7!
- threat
- 1.Bb2?
- threat
- 2.f3#
- 1...Rxf2
- 2.Sxf2#
- 1...f3
- 2.Qe3#
- 1...Qe5!
- threat
- 1.Bxc4?
- threat
- 2.Bd5#
- 2.Qd3#
- 1...Rxf2+
- 2.Sxf2#
- 1...Qxc4
- 2.Sc5#
- 1...Qd6
- 2.Bd5#
- 1...Qd8
- 2.Sc5#
- 2.Bd5#
- 1...Qd7
- 2.Sc5#
- 2.Bd5#
- 1...Sxc4!
- threat
- 1.Shxf4?
- Keys
- 1.Sd4!
- threat
- 2.Qf3#
- 1...Rxf2+
- 2.Sxf2#
- 1...Sb2
- 2.f3#
- 1...Sd2
- 2.Bd3#
- 1...Se3
- 2.Bd3#
- 1...Sa5
- 2.Bd3#
- 1...Se5
- 2.Sg5#
- 1...Sb6
- 2.Bd3#
- 1...Sd6
- 2.Bd3#
- 1...f3
- 2.Qxf3#
- threat
- 1.Sd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 7
- REMOVED MATES = 12
- Sets
- Q(f);N_GUARD::S(J)
- Q(f);N_GUARD::S(J),XQ(f)
- Q(f);N_GUARD::B(H),XQ(f)
- Q(f);N_GUARD::B(H)
- R(a);N_PINP(C)::P(C)
- R(a);CHECK,XP(C)::S(F),XR(a)
- R(a);N_PINP(C),XS(F)::P(C)
- S(b);N_PINP(C)::P(C)
- P(e);N_GUARD,XP(E)::QAR1(D)
- P(e);N_GUARD::QAR1(D)
- Tries
- Try
- S(F);XP(e)
- Threat
- DUALS(2)
- Vars
- R(a);N_PINP(C),XR(I)::QAB1(D)
- Q(f);::QAB1(D)
- Q(f);::QAR1(D)
- B(g);::QAB1(D)
- Refutation
- R(a);CHECK,XP(C)
- Try
- S(F);CHECK
- Vars
- K(d);S_FLIGHT::QAR2(D)
- Refutation
- K(d);N_SPINS(c),S_FLIGHT
- Try
- S(J);XP(e)
- Threat
- DUALS(2)
- Vars
- R(a);CHECK,XP(C)::S(F),XR(a)
- Q(f);::QAB1(D)
- Q(f);::QAR1(D)
- B(g);::QAB1(D)
- Refutation
- Q(f);XS(J)
- Try
- S(J);XQ(f)
- Threat
- R1(I)
- Vars
- R(a);CHECK,XP(C)::S(F),XR(a)
- Refutation
- B(g);XS(J)
- Try
- B(A);N_SPINP(C)
- Threat
- P(C)
- Vars
- R(a);P_PINB(A),XP(C)::S(F),XR(a)
- P(e);N_GUARD::QAR1(D)
- Refutation
- Q(f);
- Try
- B(H);XS(c)
- Threat
- DUALS(2)
- Vars
- R(a);CHECK,XP(C)::S(F),XR(a)
- Q(f);N_GUARD,P_PINQ(D),P_SPINQ(f),XB(H)::S(J)
- Q(f);::R(G)+B(H),DCHECK
- Refutation
- S(b);P_SPINS(b),XB(H)
- Try
- Actual
- S(J);N_PINS(c)
- Threat
- QAB1(D)
- Vars
- R(a);CHECK,XP(C)::S(F),XR(a)
- S(c);N_PINP(C),P_PINQ(D)::P(C)
- S(c);N_PINP(C),OGATE,P_PINQ(D)::B(H)
- S(c);OGATE,P_PINQ(D)::B(H)
- S(c);P_PINQ(D),SBLOCK::S(F)
- P(e);::QAB1(D),XP(e)
Developed and maintained by Brian Stephenson.
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