MESON Chess Problem Database
Problem Display
PID: 21893 (8/5p2/5NpB/3R3P/4N1R1/1p3k1r/1K1PnP2/2nQ2bb w - - 0 1)
Hartong, Jan
Tijdschrift vd NSB, 1921
#2
10 + 9
| 3360 | Simple Two-move Themes | 1924 |
SOLUTION
- SOUND
- Sets
- 1...Rh2
- 2.Rg3#
- 1...Rg3
- 2.Rxg3#
- 1...Rh4
- 2.Rg3#
- 1...Rxh5
- 2.Rg3#
- 1...Bxf2
- 2.Sg5#
- 1...Bh2
- 2.Qxh1#
- 1...Bg2
- 2.Rf4#
- 1...Sa2
- 2.Rd3#
- 1...Sd3+
- 2.Rxd3#
- 1...gxh5
- 2.Rf5#
- 1...g5
- 2.Rf5#
- 1...Rh2
- Tries
- 1.Ka1?
- 1...Rxh5
- 2.Rg3#
- 1...Bxf2
- 2.Sg5#
- 1...gxh5
- 2.Rf5#
- 1...Rg3
- 2.Rxg3#
- 1...Rh2
- 2.Rg3#
- 1...Rh4
- 2.Rg3#
- 1...Bh2
- 2.Qxh1#
- 1...Bg2
- 2.Rf4#
- 1...Sa2
- 2.Rd3#
- 1...Sd3
- 2.Rxd3#
- 1...g5
- 2.Rf5#
- 1...b2+!
- 1...Rxh5
- 1.Kb1?
- 1...Rxh5
- 2.Rg3#
- 1...Bxf2
- 2.Sg5#
- 1...gxh5
- 2.Rf5#
- 1...Rg3
- 2.Rxg3#
- 1...Rh2
- 2.Rg3#
- 1...Rh4
- 2.Rg3#
- 1...Bh2
- 2.Qxh1#
- 1...Bg2
- 2.Rf4#
- 1...Sa2
- 2.Rd3#
- 1...Sd3
- 2.Rxd3#
- 1...g5
- 2.Rf5#
- 1...b2!
- 1...Rxh5
- 1.Ka3?
- 1...Rxh5
- 2.Rg3#
- 1...Bxf2
- 2.Sg5#
- 1...gxh5
- 2.Rf5#
- 1...Rg3
- 2.Rxg3#
- 1...Rh2
- 2.Rg3#
- 1...Rh4
- 2.Rg3#
- 1...Bh2
- 2.Qxh1#
- 1...Bg2
- 2.Rf4#
- 1...Sa2
- 2.Rd3#
- 1...Sd3
- 2.Rxd3#
- 1...g5
- 2.Rf5#
- 1...b2!
- 1...Rxh5
- 1.Be3?
- threat
- 2.Sg5#
- 1...Rxh5
- 2.Rg3#
- 1...Rg3
- 2.Rxg3#
- 1...g5
- 2.Sxg5#
- 2.Rf5#
- 1...Sd3+!
- threat
- 1.Bg5?
- 1...Sd3+
- 2.Rxd3#
- 1...Rxh5
- 2.Rg3#
- 1...gxh5
- 2.Rf5#
- 1...Rg3
- 2.Rxg3#
- 1...Rh2
- 2.Rg3#
- 1...Rh4
- 2.Rg3#
- 1...Bh2
- 2.Qxh1#
- 1...Bg2
- 2.Rf4#
- 1...Sa2
- 2.Rd3#
- 1...Bxf2!
- 1...Sd3+
- 1.Rxg1?
- 1...Sd3+
- 2.Rxd3#
- 1...Rxh5
- 2.Rg3#
- 1...gxh5
- 2.Rf5#
- 1...g5
- 2.Rf5#
- 1...Rh2
- 2.Rg3#
- 1...Rg3
- 2.Rxg3#
- 1...Rh4
- 2.Rg3#
- 1...Sa2
- 2.Rd3#
- 1...Bg2!
- 1...Sd3+
- 1.Rxg6?
- threat
- 2.Rf5#
- 1...Sd3+
- 2.Rxd3#
- 1...Rxh5
- 2.Rg3#
- 1...Rg3
- 2.Rxg3#
- 1...Rh4
- 2.Rg3#
- 1...Bh2
- 2.Qxh1#
- 1...fxg6!
- threat
- 1.Qxe2+?
- 1...Sxe2
- 2.Rd3#
- 1...Kxe2!
- 1...Sxe2
- 1.Qxb3+?
- 1...Sxb3
- 2.Rd3#
- 1...Sd3+
- 2.Rxd3#
- 2.Qxd3#
- 1...Sc3!
- 1...Sxb3
- 1.Qf1?
- threat
- 2.Sg5#
- 1...Sd3+
- 2.Rxd3#
- 1...g5
- 2.Sxg5#
- 1...Rxh5!
- threat
- 1.d3?
- 1...Sxd3+
- 2.Rxd3#
- 2.Qxd3#
- 1...Rxh5
- 2.Rg3#
- 1...Bxf2
- 2.Sd2#
- 1...gxh5
- 2.Rf5#
- 1...Rg3
- 2.Rxg3#
- 1...g5
- 2.Rf5#
- 1...Rh2
- 2.Rg3#
- 1...Rh4
- 2.Rg3#
- 1...Bh2
- 2.Qxh1#
- 1...Bg2
- 2.Rf4#
- 1...Sa2!
- 1...Sxd3+
- 1.hxg6?
- threat
- 2.Rf5#
- 1...Sd3+
- 2.Rxd3#
- 1...Rg3
- 2.Rxg3#
- 1...Rh5
- 2.Rg3#
- 1...Bh2
- 2.Qxh1#
- 1...fxg6!
- threat
- 1.Ka1?
- Keys
- 1.d4!
- 1...Sd3+
- 2.Qxd3#
- 1...Rxh5
- 2.Rg3#
- 1...Bxf2
- 2.Sd2#
- 1...gxh5
- 2.Rf5#
- 1...Rg3
- 2.Rxg3#
- 1...Sa2
- 2.Qd3#
- 1...Rh2
- 2.Rg3#
- 1...Rh4
- 2.Rg3#
- 1...Bh2
- 2.Qxh1#
- 1...Bg2
- 2.Rf4#
- 1...g5
- 2.Rf5#
- 1...Sd3+
- 1.d4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 3
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(g);N_GUARD::R1(F)
- R(g);N_GUARD::R1(F),XR(g)
- R(g);N_GUARD,XP(H)::R1(F)
- B(b);SBLOCK,XP(D)::S(E)
- B(b);OGATE::QAB(A),XB(c)
- B(c);SBLOCK::R1(F)
- S(a);N_GUARD::R(G)
- S(a);CHECK,N_GUARD::R(G),XS(a)
- P(h);N_GUARD,XP(H)::R(G)
- P(h);N_GUARD::R(G)
- Tries
- Try
- K(B);S_FLIGHT
- Vars
- R(g);N_GUARD,XP(H)::R1(F)
- B(b);SBLOCK,XP(D)::S(E)
- P(h);N_GUARD,XP(H)::R(G)
- R(g);N_GUARD::R1(F),XR(g)
- R(g);N_GUARD::R1(F)
- B(b);OGATE::QAB(A),XB(c)
- B(c);SBLOCK::R1(F)
- S(a);N_GUARD::R(G)
- S(a);N_GUARD::R(G),XS(a)
- P(h);N_GUARD::R(G)
- Refutation
- P(e);CHECK
- Try
- K(B);P-FLIGHT
- Vars
- R(g);N_GUARD,XP(H)::R1(F)
- B(b);SBLOCK,XP(D)::S(E)
- P(h);N_GUARD,XP(H)::R(G)
- R(g);N_GUARD::R1(F),XR(g)
- R(g);N_GUARD::R1(F)
- B(b);OGATE::QAB(A),XB(c)
- B(c);SBLOCK::R1(F)
- S(a);N_GUARD::R(G)
- S(a);N_GUARD::R(G),XS(a)
- P(h);N_GUARD::R(G)
- Refutation
- P(e);
- Try
- K(B);S_FLIGHT
- Vars
- R(g);N_GUARD,XP(H)::R1(F)
- B(b);SBLOCK,XP(D)::S(E)
- P(h);N_GUARD,XP(H)::R(G)
- R(g);N_GUARD::R1(F),XR(g)
- R(g);N_GUARD::R1(F)
- B(b);OGATE::QAB(A),XB(c)
- B(c);SBLOCK::R1(F)
- S(a);N_GUARD::R(G)
- S(a);N_GUARD::R(G),XS(a)
- P(h);N_GUARD::R(G)
- Refutation
- P(e);
- Try
- B(J);
- Threat
- S(E)
- Vars
- R(g);N_GUARD,XP(H)::R1(F)
- R(g);N_GUARD::R1(F),XR(g)
- Refutation
- S(a);CHECK
- Try
- B(J);
- Vars
- S(a);CHECK,N_GUARD::R(G),XS(a)
- R(g);N_GUARD,XP(H)::R1(F)
- P(h);N_GUARD,XP(H)::R(G)
- R(g);N_GUARD::R1(F),XR(g)
- R(g);N_GUARD::R1(F)
- B(b);OGATE::QAB(A),XB(c)
- B(c);SBLOCK::R1(F)
- S(a);N_GUARD::R(G)
- Refutation
- B(b);XP(D)
- Try
- R(F);XB(b)
- Vars
- S(a);CHECK,N_GUARD::R(G),XS(a)
- R(g);N_GUARD,XP(H)::R1(F)
- P(h);N_GUARD,XP(H)::R(G)
- P(h);N_GUARD::R(G)
- R(g);N_GUARD::R1(F)
- R(g);N_GUARD::R1(F),XR(g)
- S(a);N_GUARD::R(G)
- Refutation
- B(c);
- Try
- R(F);XP(h)
- Threat
- R(G)
- Vars
- S(a);CHECK,N_GUARD::R(G),XS(a)
- R(g);N_GUARD,XP(H)::R1(F)
- R(g);N_GUARD::R1(F),XR(g)
- R(g);N_GUARD::R1(F)
- B(b);OGATE::QAB(A),XB(c)
- Refutation
- P(i);XR(F)
- Try
- Q(A);CHECK,XS(d)
- Vars
- S(a);SBLOCK,XQ(A)::R(G)
- Refutation
- K(f);S_FLIGHT,XQ(A)
- Try
- Q(A);CHECK,N_PINS(d),XP(e)
- Vars
- S(a);N_GUARD,XQ(A)::R(G)
- Refutation
- S(d);P_SPINS(d)
- Try
- Q(A);N_PINS(d)
- Threat
- S(E)
- Vars
- S(a);CHECK,N_GUARD::R(G),XS(a)
- P(h);::S(E),XP(h)
- Refutation
- R(g);XP(H)
- Try
- P(C);
- Vars
- R(g);N_GUARD,XP(H)::R1(F)
- B(b);SBLOCK,XP(D)::S(E)
- P(h);N_GUARD,XP(H)::R(G)
- R(g);N_GUARD::R1(F),XR(g)
- P(h);N_GUARD::R(G)
- R(g);N_GUARD::R1(F)
- B(b);OGATE::QAB(A),XB(c)
- B(c);SBLOCK::R1(F)
- Refutation
- S(a);
- Try
- P(H);XP(h)
- Threat
- R(G)
- Vars
- S(a);CHECK,N_GUARD::R(G),XS(a)
- R(g);N_GUARD::R1(F),XR(g)
- R(g);N_GUARD::R1(F)
- B(b);OGATE::QAB(A),XB(c)
- Refutation
- P(i);XP(H)
- Try
- Actual
- P(C);
- Vars
- S(a);CHECK,N_GUARD::QAR2(A),XS(a)
- R(g);N_GUARD,XP(H)::R1(F)
- B(b);SBLOCK,XP(D)::S(E)
- P(h);N_GUARD,XP(H)::R(G)
- R(g);N_GUARD::R1(F),XR(g)
- S(a);N_GUARD::QAR2(A)
- R(g);N_GUARD::R1(F)
- B(b);OGATE::QAB(A),XB(c)
- B(c);SBLOCK::R1(F)
- P(h);N_GUARD::R(G)
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