MESON Chess Problem Database
Problem Display
PID: 184905 (BBr5/3Q4/4Rp2/1p1rn2R/1p2k3/3n1p1P/b1N4b/KN6 w - - 0 1)
Anderson, Gerald Frank
Riches, FJ
The Observer, 1929
(First published on Sun Feb 24 1929)
#2
9 + 11
| 15239 | Valois Notebooks | 2018 |
SOLUTION
- SOUND
- Tries
- 1.Rexe5+?
- 1...Kf4
- 2.Qg4#
- 1...Sxe5
- 2.Qf5#
- 1...fxe5
- 2.Qf5#
- 1...Bxe5+!
- 1...Kf4
- 1.Ra6?
- threat
- 2.Qf5#
- 1...Kf4
- 2.Qg4#
- 1...Sxd7
- 2.Sd2#
- 1...Sc6
- 2.Sd2#
- 1...f5
- 2.Qxf5#
- 1...Rxc2!
- threat
- 1.Rb6?
- threat
- 2.Qf5#
- 1...Kf4
- 2.Qg4#
- 1...Sxd7
- 2.Sd2#
- 1...Sc6
- 2.Sd2#
- 1...f5
- 2.Qxf5#
- 1...Rxc2!
- threat
- 1.Rxf6?
- threat
- 2.Sd2#
- 2.Qf5#
- 1...Bxb1
- 2.Bxd5#
- 2.Qf5#
- 2.Qxd5#
- 1...Sxd7
- 2.Sd2#
- 1...Sc1
- 2.Qf5#
- 1...Se1
- 2.Qf5#
- 1...Sb2
- 2.Qf5#
- 1...Sf2
- 2.Qf5#
- 1...Sf4
- 2.Qf5#
- 1...Sc5
- 2.Qf5#
- 1...Bf4
- 2.Qf5#
- 1...Sc4
- 2.Bxd5#
- 2.Qf5#
- 2.Qxd5#
- 2.Qh7#
- 1...Sc6
- 2.Sd2#
- 1...Rxc2!
- threat
- 1.Re7?
- threat
- 2.Qf5#
- 1...Kf4
- 2.Qg4#
- 1...f5
- 2.Qxf5#
- 1...Rxc2!
- threat
- 1.Re8?
- threat
- 2.Qf5#
- 1...Kf4
- 2.Qg4#
- 1...f5
- 2.Qxf5#
- 1...Rxc2!
- threat
- 1.Qxd5+?
- 1...Kf4
- 2.Qxf3#
- 1...Bxd5!
- 1...Kf4
- 1.Qh7+?
- 1...f5
- 2.Qxf5#
- 1...Kf4!
- 1...f5
- 1.Rexe5+?
- Keys
- 1.Rc6!
- threat
- 2.Qf5#
- 1...Kf4
- 2.Qg4#
- 1...Rxd7
- 2.Rc4#
- 1...Sxc6
- 2.Sd2#
- 1...Sxd7
- 2.Sd2#
- 1...Rd6
- 2.Rc4#
- 1...Rd4
- 2.Qxd4#
- 1...Rc5
- 2.Qd4#
- 1...Sc4
- 2.Qxd5#
- 1...Sg4
- 2.Sd2#
- 1...Sg6
- 2.Sd2#
- 1...Sf7
- 2.Sd2#
- 1...f5
- 2.Qxf5#
- threat
- 1.Rc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 12
- REMOVED MATES = 0
- Sets
- Tries
- Try
- R(F);CHECK,XS(i)
- Vars
- K(f);N_SPINR(h),P-FLIGHT::QAR1(G)
- S(c);XR(F)::QAB1(G)
- P(j);XR(F)::QAB1(G)
- Refutation
- B(b);CHECK,XR(F)
- Try
- R(F);N_PINS(i)
- Threat
- QAB1(G)
- Vars
- K(f);N_SPINR(h),P-FLIGHT,P_SPINS(i)::QAR1(G)
- S(i);XQ(G)::S(B)
- S(i);N_SPINR(h)::S(B)
- P(j);::QAB1(G),XP(j)
- Refutation
- R(k);XS(C)
- Try
- R(F);N_PINS(i)
- Threat
- QAB1(G)
- Vars
- K(f);N_SPINR(h),P-FLIGHT,P_SPINS(i)::QAR1(G)
- S(i);XQ(G)::S(B)
- S(i);N_SPINR(h)::S(B)
- P(j);::QAB1(G),XP(j)
- Refutation
- R(k);XS(C)
- Try
- R(F);N_PINS(i),XP(j)
- Threat
- DUALS(2)
- Vars
- S(i);XQ(G)::S(B)
- S(c);::QAB1(G)
- B(b);::QAB1(G)
- S(i);N_SPINR(h)::S(B)
- Refutation
- R(k);XS(C)
- Try
- R(F);
- Threat
- QAB1(G)
- Vars
- K(f);N_SPINR(h),P-FLIGHT::QAR1(G)
- P(j);::QAB1(G),XP(j)
- Refutation
- R(k);XS(C)
- Try
- R(F);
- Threat
- QAB1(G)
- Vars
- K(f);N_SPINR(h),P-FLIGHT::QAR1(G)
- P(j);::QAB1(G),XP(j)
- Refutation
- R(k);XS(C)
- Try
- Q(G);CHECK,XR(h)
- Vars
- K(f);OGATE,P-FLIGHT::QAR1(G),XP(d)
- Refutation
- B(a);P_SPINB(a),XQ(G)
- Try
- Q(G);CHECK
- Vars
- P(j);P_SPINP(j)::QAB1(G),XP(j)
- Refutation
- K(f);N_SPINR(h),P-FLIGHT
- Try
- Actual
- R(F);N_PINR(h),N_PINS(i)
- Threat
- QAB1(G)
- Vars
- K(f);P-FLIGHT,P_SPINS(i)::QAR1(G)
- R(h);XQ(G)::B(H)+R(F),DCHECK
- S(i);XR(F)::S(B)
- S(i);XQ(G)::S(B)
- R(h);::B(H)+R(F),DCHECK
- R(h);OGATE::QAR1(G),XR(h)
- R(h);OGATE::QAR1(G)
- S(i);S_CUTB(a)::QAB1(G),XR(h)
- S(i);::S(B)
- P(j);::QAB1(G),XP(j)
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