MESON Chess Problem Database
Problem Display
PID: 17765 (b1n5/1R5p/1b1p4/3R4/N3k3/r3N1B1/r1P1Q2K/8 w - - 0 1)
Macleod, Norman Alasdair
HM., Nederlandse Bond van Probleemvrienden TT, 1949
#2
8 + 8
| 6455 | The Chessboard Adventures of Norman Macleod | 1996 |
SOLUTION
- SOUND
- Sets
- 1...Rc3
- 2.Sxc3#
- 1...Rd3
- 2.cxd3#
- 1...Rxe3
- 2.Sc3#
- 1...Bxe3
- 2.Qg2#
- 1...Bc7
- 2.Rb4#
- 1...Bd8
- 2.Rb4#
- 1...Sa7
- 2.Re7#
- 1...Se7
- 2.Rxe7#
- 1...Rc3
- Tries
- 1.Kg2?
- threat
- 2.Qf3#
- 1...Rxe3
- 2.Sc3#
- 1...Rxc2!
- threat
- 1.Sd1+?
- 1...Re3
- 2.Sdc3#
- 2.Sac3#
- 1...Be3
- 2.Qg2#
- 1...Kxd5!
- 1...Re3
- 1.Sf1+?
- 1...Re3
- 2.Sc3#
- 1...Be3
- 2.Qg2#
- 1...Kxd5!
- 1...Re3
- 1.Sc4+?
- 1...Re3
- 2.Sc3#
- 1...Be3
- 2.Qg2#
- 1...Kxd5!
- 1...Re3
- 1.Sg4+?
- 1...Re3
- 2.Sc3#
- 2.Sf6#
- 1...Be3
- 2.Sf6#
- 2.Qg2#
- 1...Kxd5!
- 1...Re3
- 1.Sf5+?
- 1...Re3
- 2.Sc3#
- 1...Be3
- 2.Qg2#
- 1...Kxd5!
- 1...Re3
- 1.Re5+?
- 1...Kd4
- 2.Sf5#
- 2.Qc4#
- 2.Qg4#
- 1...dxe5!
- 1...Kd4
- 1.Rg5?
- threat
- 2.Rg4#
- 1...Kd4
- 2.Rg4#
- 1...Rxe3
- 2.Qg4#
- 1...Bxe3
- 2.Rb4#
- 1...h5!
- threat
- 1.Rf7?
- threat
- 2.Rf4#
- 2.Qf3#
- 1...Rxc2
- 2.Rf4#
- 1...Rxe3
- 2.Sc3#
- 1...Bxe3
- 2.Qf3#
- 2.Qg2#
- 1...Bxd5!
- threat
- 1.Rg7?
- threat
- 2.Rg4#
- 1...Rxe3
- 2.Sc3#
- 1...Bxe3
- 2.Qg2#
- 1...h5!
- threat
- 1.Rxh7?
- threat
- 2.Rh4#
- 1...Rxe3
- 2.Sc3#
- 1...Bxe3
- 2.Qg2#
- 1...Bd8!
- threat
- 1.Qd3+?
- 1...Kf3
- 2.Rf5#
- 2.Rf7#
- 1...Rxd3!
- 1...Kf3
- 1.Qf2?
- threat
- 2.Qf4#
- 1...Rxe3
- 2.Qf5#
- 1...Bxe3
- 2.Qg2#
- 2.Qf5#
- 1...Rxc2!
- threat
- 1.Kg2?
- Keys
- 1.Rh5!
- threat
- 2.Rh4#
- 1...Kd4
- 2.Rh4#
- 1...Rxe3
- 2.Qg4#
- 1...Bxe3
- 2.Rb4#
- 1...Bd8
- 2.Rb4#
- threat
- 1.Rh5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- R(b);N_GUARD::S(F),XR(b)
- R(b);OGATE::P(A),XR(b)
- R(b);N_GUARD,P_SPINR(b),XS(D)::S(F)
- B(d);P_SPINB(d),SBLOCK,XS(D)::QAB(B)
- B(d);OGATE::R(H)
- S(h);N_GUARD::R(H)
- S(h);N_GUARD::R(H),XS(h)
- Tries
- Try
- K(C);P-FLIGHT
- Threat
- QAB1(B)
- Vars
- R(b);N_GUARD,P_SPINR(b),XS(D)::S(F)
- Refutation
- R(a);P_PINQ(B),XP(A)
- Try
- S(D);CHECK
- Vars
- B(d);P_SPINB(d),S_CUTR(b)::QAB(B)
- Refutation
- K(c);S_FLIGHT,XR(G)
- Try
- S(D);CHECK
- Vars
- R(b);P_SPINR(b)::S(F)
- B(d);P_SPINB(d),S_CUTR(b)::QAB(B)
- Refutation
- K(c);S_FLIGHT,XR(G)
- Try
- S(D);CHECK
- Vars
- R(b);P_SPINR(b)::S(F)
- B(d);P_SPINB(d),S_CUTR(b)::QAB(B)
- Refutation
- K(c);S_FLIGHT,XR(G)
- Try
- S(D);CHECK
- Refutation
- K(c);S_FLIGHT,XR(G)
- Try
- S(D);CHECK
- Vars
- R(b);P_SPINR(b)::S(F)
- B(d);P_SPINB(d),S_CUTR(b)::QAB(B)
- Refutation
- K(c);S_FLIGHT,XR(G)
- Try
- R(G);CHECK
- Refutation
- P(e);XR(G)
- Try
- R(G);
- Threat
- R(G)
- Vars
- K(c);P-FLIGHT::R(G)
- R(b);P_SPINR(b),SBLOCK,XS(D)::QAR2(B)
- B(d);OGATE,P_SPINB(d),XS(D)::R(H)
- Refutation
- P(f);
- Try
- R(H);
- Threat
- DUALS(2)
- Vars
- R(a);P_PINQ(B),XP(A)::R1(H)
- R(b);N_GUARD,P_SPINR(b),XS(D)::S(F)
- Refutation
- B(g);XR(G)
- Try
- R(H);
- Threat
- R(H)
- Vars
- R(b);N_GUARD,P_SPINR(b),XS(D)::S(F)
- B(d);P_SPINB(d),SBLOCK,XS(D)::QAB(B)
- Refutation
- P(f);
- Try
- R(H);XP(f)
- Threat
- R(H)
- Vars
- R(b);N_GUARD,P_SPINR(b),XS(D)::S(F)
- B(d);P_SPINB(d),SBLOCK,XS(D)::QAB(B)
- Refutation
- B(d);
- Try
- Q(B);CHECK,P_SPINP(A)
- Refutation
- R(b);XQ(B)
- Try
- Q(B);
- Threat
- QAR1(B)
- Vars
- R(b);SBLOCK,XS(D)::QAB1(B)
- Refutation
- R(a);P_PINQ(B),XP(A)
- Try
- Actual
- R(G);
- Threat
- R(G)
- Vars
- K(c);P-FLIGHT::R(G)
- R(b);P_SPINR(b),SBLOCK,XS(D)::QAR2(B)
- B(d);OGATE,P_SPINB(d),XS(D)::R(H)
- B(d);OGATE::R(H)
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