MESON Chess Problem Database
Problem Display
PID: 132550 (2b4Q/5p2/1N2pn2/1pP1k3/1R1p2P1/3BP2n/3rRp2/2B1bK2 w - - 0 1)
Robertson, Rev Nevill
The Field, 1957
(First published on Thu Jun 20 1957)
#2
10 + 11
SOLUTION
- SOUND
- Sets
- 1...Rd1
- 2.exd4#
- 1...Ra2
- 2.exd4#
- 1...Rb2
- 2.exd4#
- 1...Rc2
- 2.exd4#
- 1...Rxe2
- 2.exd4#
- 1...Rxd3
- 2.exd4#
- 1...Ba6
- 2.Qb8#
- 1...Bb7
- 2.Qb8#
- 1...Bd7
- 2.Qb8#
- 1...Sg1
- 2.Qh2#
- 1...Sf4
- 2.exd4#
- 1...Sg5
- 2.Qh2#
- 1...dxe3
- 2.Rxe3#
- 2.Re4#
- 1...Rd1
- Tries
- 1.Bxd2?
- threat
- 2.exd4#
- 1...dxe3
- 2.Rxe3#
- 2.Re4#
- 1...Bxd2!
- threat
- 1.Bb1?
- 1...Rxe2
- 2.exd4#
- 1...dxe3
- 2.Rxe3#
- 2.Re4#
- 1...Rc2
- 2.exd4#
- 1...Rd3
- 2.exd4#
- 1...Rd1
- 2.exd4#
- 1...Ra2
- 2.exd4#
- 1...Rb2
- 2.exd4#
- 1...Ba6
- 2.Qb8#
- 1...Bb7
- 2.Qb8#
- 1...Bd7
- 2.Qb8#
- 1...Sg1
- 2.Qh2#
- 1...Sf4
- 2.exd4#
- 1...Sg5
- 2.Qh2#
- 1...d3!
- 1...Rxe2
- 1.Bf5?
- 1...Rxe2
- 2.exd4#
- 1...dxe3
- 2.Rxe3#
- 2.Re4#
- 1...Rd1
- 2.exd4#
- 1...Ra2
- 2.exd4#
- 1...Rb2
- 2.exd4#
- 1...Rc2
- 2.exd4#
- 1...Rd3
- 2.exd4#
- 1...Ba6
- 2.Qb8#
- 1...Bb7
- 2.Qb8#
- 1...Bd7
- 2.Qb8#
- 1...Sg1
- 2.Qh2#
- 1...Sf4
- 2.exd4#
- 1...Sg5
- 2.Qh2#
- 1...d3
- 2.Re4#
- 1...exf5!
- 1...Rxe2
- 1.Bg6?
- 1...Rxe2
- 2.exd4#
- 1...dxe3
- 2.Rxe3#
- 2.Re4#
- 1...Rd1
- 2.exd4#
- 1...Ra2
- 2.exd4#
- 1...Rb2
- 2.exd4#
- 1...Rc2
- 2.exd4#
- 1...Rd3
- 2.exd4#
- 1...Ba6
- 2.Qb8#
- 1...Bb7
- 2.Qb8#
- 1...Bd7
- 2.Qb8#
- 1...Sg1
- 2.Qh2#
- 1...Sf4
- 2.exd4#
- 1...Sg5
- 2.Qh2#
- 1...d3
- 2.Re4#
- 1...fxg6!
- 1...Rxe2
- 1.Rxd2?
- 1...dxe3
- 2.Bb2#
- 2.Re4#
- 1...Ba6
- 2.Qb8#
- 1...Bb7
- 2.Qb8#
- 1...Bd7
- 2.Qb8#
- 1...Sg1
- 2.Qh2#
- 1...Sf4
- 2.exd4#
- 1...Sg5
- 2.Qh2#
- 1...Bxd2!
- 1...dxe3
- 1.Rxd4?
- threat
- 2.Re4#
- 1...Bb7
- 2.Sd7#
- 2.Qb8#
- 1...Sg5
- 2.Qh2#
- 1...Rxd3!
- threat
- 1.Qh5+?
- 1...Sg5
- 2.Qh2#
- 2.Qxg5#
- 1...Sxh5!
- 1...Sg5
- 1.Qh6?
- threat
- 2.exd4#
- 1...Sg5
- 2.Qxg5#
- 2.Qh2#
- 1...dxe3!
- threat
- 1.g5?
- threat
- 2.Qxf6#
- 1...Sxg5
- 2.Qh2#
- 1...Rxd3!
- threat
- 1.Bxd2?
- Keys
- 1.Bc2!
- 1...Rxc2
- 2.exd4#
- 1...Rxe2
- 2.exd4#
- 1...dxe3
- 2.Rxe3#
- 2.Re4#
- 1...Rd3
- 2.exd4#
- 1...Rd1
- 2.exd4#
- 1...Ba6
- 2.Qb8#
- 1...Bb7
- 2.Qb8#
- 1...Bd7
- 2.Qb8#
- 1...Sg1
- 2.Qh2#
- 1...Sf4
- 2.exd4#
- 1...Sg5
- 2.Qh2#
- 1...d3
- 2.Bb2#
- 1...Rxc2
- 1.Bc2!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 2
- Sets
- R(b);::R(C)+P(E)DCHECK,XP(e)
- R(b);XR(C)::P(E),XP(e)
- R(b);XB(D)::R(C)+P(E)DCHECK,XP(e)
- B(k);OGATE::QAB(J)
- S(d);OGATE::QAB(J)
- S(d);SBLOCK::R(C)+P(E)DCHECK,XP(e)
- Tries
- Try
- B(A);XR(b)
- Threat
- R(C)+P(E)DCHECK,XP(e)
- Refutation
- B(a);XB(A)
- Try
- B(D);
- Vars
- R(b);XR(C)::P(E),XP(e)
- R(b);::R(C)+P(E)DCHECK,XP(e)
- B(k);OGATE::QAB(J)
- S(d);OGATE::QAB(J)
- S(d);SBLOCK::R(C)+P(E)DCHECK,XP(e)
- Refutation
- P(e);
- Try
- B(D);
- Vars
- R(b);XR(C)::P(E),XP(e)
- R(b);::R(C)+P(E)DCHECK,XP(e)
- B(k);OGATE::QAB(J)
- S(d);OGATE::QAB(J)
- S(d);SBLOCK::R(C)+P(E)DCHECK,XP(e)
- P(e);OGATE::R1(F)
- Refutation
- P(h);XB(D)
- Try
- B(D);
- Vars
- R(b);XR(C)::P(E),XP(e)
- R(b);::R(C)+P(E)DCHECK,XP(e)
- B(k);OGATE::QAB(J)
- S(d);OGATE::QAB(J)
- S(d);SBLOCK::R(C)+P(E)DCHECK,XP(e)
- P(e);OGATE::R1(F)
- Refutation
- P(j);XB(D)
- Try
- R(C);XR(b)
- Vars
- B(k);OGATE::QAB(J)
- S(d);OGATE::QAB(J)
- S(d);SBLOCK::P(E),XP(e)
- Refutation
- B(a);XR(C)
- Try
- R(F);XP(e)
- Threat
- R1(F)
- Vars
- S(d);OGATE::QAB(J)
- Refutation
- R(b);XB(D)
- Try
- Q(J);CHECK,N_PINS(i)
- Refutation
- S(i);XQ(J)
- Try
- Q(J);N_PINS(i)
- Threat
- R(C)+P(E)DCHECK,XP(e)
- Refutation
- P(e);P_SPINP(e),XP(E)
- Try
- P(G);
- Threat
- QAB1(J),XS(i)
- Vars
- S(d);OGATE,XP(G)::QAB(J)
- Refutation
- R(b);XB(D)
- Try
- Actual
- B(D);
- Vars
- R(b);XB(D)::R(C)+P(E)DCHECK,XP(e)
- R(b);XR(C)::P(E),XP(e)
- R(b);::R(C)+P(E)DCHECK,XP(e)
- B(k);OGATE::QAB(J)
- S(d);OGATE::QAB(J)
- S(d);SBLOCK::R(C)+P(E)DCHECK,XP(e)
- P(e);OGATEB::B(A)
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