MESON Chess Problem Database
Problem Display
PID: 227621 (8/8/1p2Bp2/pPbRN3/Pp2k3/1Rp1PNP1/2KP4/B7 w - - 0 1)
Oosterholt, Cornelis Johannes
Noord-Hollandsch Dagblad, 1926
#2
12 + 7
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bxe3
- 2.d3#
- 1...Bd4
- 2.Rxd4#
- 1...Bd6
- 2.Rd4#
- 1...Be7
- 2.Rd4#
- 1...Bf8
- 2.Rd4#
- 1...cxd2
- 2.Sxd2#
- 1...fxe5
- 2.Sg5#
- 1...f5
- 2.Sg5#
- 1...Bxe3
- Tries
- 1.Kb1?
- 1...Bxe3
- 2.d3#
- 1...cxd2
- 2.Sxd2#
- 1...fxe5
- 2.Sg5#
- 1...Bd4
- 2.Rxd4#
- 1...Bd6
- 2.Rd4#
- 1...Be7
- 2.Rd4#
- 1...Bf8
- 2.Rd4#
- 1...f5
- 2.Sg5#
- 1...c2+!
- 1...Bxe3
- 1.Kd1?
- 1...Bxe3
- 2.d3#
- 1...cxd2
- 2.Sxd2#
- 1...fxe5
- 2.Sg5#
- 1...Bd4
- 2.Rxd4#
- 1...Bd6
- 2.Rd4#
- 1...Be7
- 2.Rd4#
- 1...Bf8
- 2.Rd4#
- 1...f5
- 2.Sg5#
- 1...c2+!
- 1...Bxe3
- 1.Bb2?
- 1...Bxe3
- 2.d3#
- 1...cxd2
- 2.Sxd2#
- 1...fxe5
- 2.Sg5#
- 1...Bd4
- 2.Rxd4#
- 1...Bd6
- 2.Rd4#
- 1...Be7
- 2.Rd4#
- 1...Bf8
- 2.Rd4#
- 1...f5
- 2.Sg5#
- 1...cxb2!
- 1...Bxe3
- 1.Bxc3?
- 1...Bxe3
- 2.d3#
- 1...fxe5
- 2.Sg5#
- 1...Bd4
- 2.Rxd4#
- 1...Bd6
- 2.Rd4#
- 1...Be7
- 2.Rd4#
- 1...Bf8
- 2.Rd4#
- 1...f5
- 2.Sg5#
- 1...bxc3!
- 1...Bxe3
- 1.Rxb4+?
- 1...Bxb4
- 2.Rd4#
- 1...Bd4
- 2.Rbxd4#
- 2.Rdxd4#
- 1...axb4!
- 1...Bxb4
- 1.Rxc5?
- threat
- 2.Rc4#
- 1...fxe5
- 2.Sg5#
- 1...bxc5!
- threat
- 1.Rd6?
- 1...Bxe3
- 2.d3#
- 1...cxd2
- 2.Sxd2#
- 1...fxe5
- 2.Sg5#
- 1...Bd4
- 2.Rxd4#
- 1...f5
- 2.Bd5#
- 1...Bxd6!
- 1...Bxe3
- 1.Rd7?
- 1...Bxe3
- 2.d3#
- 1...cxd2
- 2.Sxd2#
- 1...fxe5
- 2.Sg5#
- 1...Bd4
- 2.Rxd4#
- 1...Be7
- 2.Rd4#
- 1...Bf8
- 2.Rd4#
- 1...f5
- 2.Bd5#
- 1...Bd6!
- 1...Bxe3
- 1.Rd8?
- 1...Bxe3
- 2.d3#
- 1...cxd2
- 2.Sxd2#
- 1...fxe5
- 2.Sg5#
- 1...Bd4
- 2.Rxd4#
- 1...Be7
- 2.Rd4#
- 1...Bf8
- 2.Rd4#
- 1...f5
- 2.Bd5#
- 1...Bd6!
- 1...Bxe3
- 1.g4?
- 1...cxd2
- 2.Sxd2#
- 1...fxe5
- 2.Sg5#
- 1...Bd6
- 2.Rd4#
- 1...Bd4
- 2.Rxd4#
- 1...Be7
- 2.Rd4#
- 1...Bf8
- 2.Rd4#
- 1...f5
- 2.Sg5#
- 1...Bxe3!
- 1...cxd2
- 1.Kb1?
- Keys
- 1.Rd3!
- 1...Bxe3
- 2.Rxe3#
- 1...cxd2
- 2.Sxd2#
- 1...fxe5
- 2.Sg5#
- 1...Bd4
- 2.Rxd4#
- 1...Bd6
- 2.Rd4#
- 1...Be7
- 2.Rd4#
- 1...Bf8
- 2.Rd4#
- 1...f5
- 2.Bd5#
- 1...Bxe3
- 1.Rd3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(e);SBLOCK,XP(E)::P(C)
- B(e);N_GUARD::R1(J),XB(e)
- B(e);N_GUARD::R1(J)
- P(a);XP(C)::S(F),XP(a)
- P(g);N_GUARD,XS(K)::S(F)
- P(g);N_GUARD::S(F)
- Tries
- Try
- K(B);S_FLIGHT
- Vars
- B(e);SBLOCK,XP(E)::P(C)
- P(a);XP(C)::S(F),XP(a)
- P(g);N_GUARD,XS(K)::S(F)
- B(e);N_GUARD::R1(J),XB(e)
- B(e);N_GUARD::R1(J)
- P(g);N_GUARD::S(F)
- Refutation
- P(a);CHECK
- Try
- K(B);S_FLIGHT
- Vars
- B(e);SBLOCK,XP(E)::P(C)
- P(a);XP(C)::S(F),XP(a)
- P(g);N_GUARD,XS(K)::S(F)
- B(e);N_GUARD::R1(J),XB(e)
- B(e);N_GUARD::R1(J)
- P(g);N_GUARD::S(F)
- Refutation
- P(a);CHECK
- Try
- B(A);
- Vars
- B(e);SBLOCK,XP(E)::P(C)
- P(a);XP(C)::S(F),XP(a)
- P(g);N_GUARD,XS(K)::S(F)
- B(e);N_GUARD::R1(J),XB(e)
- B(e);N_GUARD::R1(J)
- P(g);N_GUARD::S(F)
- Refutation
- P(a);XB(A)
- Try
- B(A);XP(a)
- Vars
- B(e);SBLOCK,XP(E)::P(C)
- P(g);N_GUARD,XS(K)::S(F)
- B(e);N_GUARD::R1(J),XB(e)
- B(e);N_GUARD::R1(J)
- P(g);N_GUARD::S(F)
- Refutation
- P(b);XB(A)
- Try
- R(D);CHECK,XP(b)
- Vars
- B(e);N_GUARD,XR(D)::R1(J)
- Refutation
- P(d);XR(D)
- Try
- R(J);XB(e)
- Threat
- R(J)
- Vars
- P(g);N_GUARD,XS(K)::S(F)
- Refutation
- P(f);XR(J)
- Try
- R(J);
- Vars
- B(e);SBLOCK,XP(E)::P(C)
- P(a);XP(C)::S(F),XP(a)
- P(g);N_GUARD,SBLOCK,XS(K)::S(F)
- B(e);N_GUARD::R1(J),XB(e)
- P(g);SBLOCK::B(L)
- Refutation
- B(e);XR(J)
- Try
- R(J);
- Vars
- B(e);SBLOCK,XP(E)::P(C)
- P(a);XP(C)::S(F),XP(a)
- P(g);N_GUARD,SBLOCK,XS(K)::S(F)
- B(e);N_GUARD::R1(J),XB(e)
- B(e);N_GUARD::R1(J)
- P(g);SBLOCK::B(L)
- Refutation
- B(e);
- Try
- R(J);
- Vars
- B(e);SBLOCK,XP(E)::P(C)
- P(a);XP(C)::S(F),XP(a)
- P(g);N_GUARD,SBLOCK,XS(K)::S(F)
- B(e);N_GUARD::R1(J),XB(e)
- B(e);N_GUARD::R1(J)
- P(g);SBLOCK::B(L)
- Refutation
- B(e);
- Try
- P(G);
- Vars
- P(a);XP(C)::S(F),XP(a)
- P(g);N_GUARD,XS(K)::S(F)
- B(e);N_GUARD::R1(J)
- B(e);N_GUARD::R1(J),XB(e)
- P(g);N_GUARD::S(F)
- Refutation
- B(e);XP(E)
- Try
- Actual
- R(J);
- Vars
- B(e);OGATE,XP(E)::R1(J),XB(e)
- P(a);XP(C)::S(F),XP(a)
- P(g);N_GUARD,SBLOCK,XS(K)::S(F)
- B(e);N_GUARD::R1(J),XB(e)
- B(e);N_GUARD::R1(J)
- P(g);SBLOCK::B(L)
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