MESON Chess Problem Database
Problem Display
PID: 206476 (7b/1p2r3/1Q3R2/8/4p2k/7p/8/K2B2Rn w - - 0 1)
ten Cate, Pieter
East Indies Chess Association, 1925
#2
5 + 7
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Re5
- 2.Rf4#
- 1...Rg7
- 2.Rh6#
- 1...Bxf6+
- 2.Qxf6#
- 1...Sf2
- 2.Qxf2#
- 1...Re5
- Tries
- 1.Kb1?
- threat
- 2.Rf4#
- 2.Rh6#
- 1...Bxf6
- 2.Qxf6#
- 1...h2
- 2.Rh6#
- 1...Re5
- 2.Rf4#
- 1...Re6
- 2.Rf4#
- 1...Rf7
- 2.Rh6#
- 1...Rg7
- 2.Rh6#
- 1...Rh7
- 2.Rf4#
- 1...Bg7
- 2.Rf4#
- 1...Sf2
- 2.Rh6#
- 2.Qxf2#
- 1...Sg3!
- threat
- 1.Ka2?
- threat
- 2.Rf4#
- 2.Rh6#
- 1...Bxf6
- 2.Qxf6#
- 1...h2
- 2.Rh6#
- 1...Re5
- 2.Rf4#
- 1...Re6
- 2.Rf4#
- 1...Rf7
- 2.Rh6#
- 1...Rg7
- 2.Rh6#
- 1...Rh7
- 2.Rf4#
- 1...Bg7
- 2.Rf4#
- 1...Sf2
- 2.Rh6#
- 2.Qxf2#
- 1...Sg3!
- threat
- 1.Qf2+?
- 1...Sg3
- 2.Qxg3#
- 2.Qf4#
- 1...Sxf2!
- 1...Sg3
- 1.Qe3?
- threat
- 2.Qf4#
- 2.Qg5#
- 2.Qh6#
- 1...Re5
- 2.Rf4#
- 2.Qf4#
- 1...Rg7
- 2.Rh6#
- 2.Qh6#
- 1...Rh7
- 2.Qf4#
- 2.Qg5#
- 2.Qxe4#
- 1...Bg7
- 2.Qf4#
- 2.Qg5#
- 1...Sf2
- 2.Qxf2#
- 2.Qg5#
- 2.Qh6#
- 2.Qg3#
- 1...Sg3
- 2.Qf4#
- 2.Qxg3#
- 1...h2
- 2.Qh6#
- 1...Bxf6+!
- threat
- 1.Qd4?
- threat
- 2.Rf4#
- 2.Rh6#
- 1...Bxf6
- 2.Qxf6#
- 1...h2
- 2.Rh6#
- 1...Re5
- 2.Rf4#
- 1...Re6
- 2.Rf4#
- 1...Rf7
- 2.Rh6#
- 2.Qxe4#
- 1...Rg7
- 2.Rh6#
- 1...Rh7
- 2.Rf4#
- 2.Qxe4#
- 1...Bg7
- 2.Rf4#
- 1...Sf2
- 2.Rh6#
- 2.Qxf2#
- 1...Sg3!
- threat
- 1.Qb2?
- threat
- 2.Rf4#
- 2.Rh6#
- 1...Bxf6
- 2.Qxf6#
- 1...h2
- 2.Rh6#
- 2.Qxh2#
- 1...Re5
- 2.Rf4#
- 1...Re6
- 2.Rf4#
- 1...Rf7
- 2.Rh6#
- 1...Rg7
- 2.Rh6#
- 1...Rh7
- 2.Rf4#
- 1...Bg7
- 2.Rf4#
- 1...Sf2
- 2.Rh6#
- 2.Qxf2#
- 1...Sg3!
- threat
- 1.Kb1?
- Keys
- 1.Qd6!
- threat
- 2.Qf4#
- 1...Bxf6+
- 2.Qxf6#
- 1...h2
- 2.Qxh2#
- 1...Re5
- 2.Rf4#
- 1...Rg7
- 2.Rh6#
- 1...Sf2
- 2.Qg3#
- threat
- 1.Qd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(f);N_PINR(E)::R(E)
- B(g);CHECK,OGATE,XR(E)::QAB(D),XB(g)
- S(a);N_GUARD::QAB(D),XS(a)
- Tries
- Try
- K(A);N_SPINR(E),P-FLIGHT
- Threat
- DUALS(2)
- Vars
- B(g);OGATE,XR(E)::QAB(D),XB(g)
- P(b);::R(E)
- R(f);::R(E)
- B(g);::R(E)
- Refutation
- S(a);
- Try
- K(A);N_SPINR(E),P-FLIGHT
- Threat
- DUALS(2)
- Vars
- B(g);OGATE,XR(E)::QAB(D),XB(g)
- P(b);::R(E)
- R(f);::R(E)
- B(g);::R(E)
- Refutation
- S(a);
- Try
- Q(D);CHECK
- Refutation
- S(a);XQ(D)
- Try
- Q(D);
- Threat
- DUALS(3)
- Vars
- P(b);::QAR2(D)
- Refutation
- B(g);CHECK,XR(E)
- Try
- Q(D);N_SPINR(E),P_PINP(c)
- Threat
- DUALS(2)
- Vars
- B(g);OGATE,P_PINQ(D),XR(E)::QAB(D),XB(g)
- P(b);::R(E)
- R(f);::R(E)
- B(g);::R(E)
- Refutation
- S(a);
- Try
- Q(D);N_SPINR(E)
- Threat
- DUALS(2)
- Vars
- B(g);OGATE,P_PINQ(D),XR(E)::QAB(D),XB(g)
- R(f);::R(E)
- B(g);::R(E)
- Refutation
- S(a);
- Try
- Actual
- Q(D);
- Threat
- QAR2(D)
- Vars
- B(g);CHECK,OGATE,XR(E)::QAB(D),XB(g)
- P(b);OGATEB::QAR2(D),XP(b)
- R(f);N_PINR(E)::R(E)
- S(a);N_GUARD::QAB1(D)
Developed and maintained by Brian Stephenson.
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