MESON Chess Problem Database
Problem Display
PID: 198282 (4n3/4K3/3PP1p1/1P1kr3/3PR3/1P2p2Q/3q1p2/7B w - - 0 1)
Jordan, Gijsbertus
Rivista del Club Argentino de Ajedrez, 1920
#2
9 + 7
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Rf5
- 2.Rf4#
- 1...Rg5
- 2.Rg4#
- 1...Rh5
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 1...Rxe6+
- 2.Qxe6#
- 1...Rf5
- Tries
- 1.Qg4?
- threat
- 2.Rxe5#
- 1...Rxe6+
- 2.Rxe6#
- 2.Qxe6#
- 1...Rxe4
- 2.Qxe4#
- 1...Rf5
- 2.Rf4#
- 2.Re5#
- 1...Rg5
- 2.Rxe3#
- 2.Rf4#
- 2.Re5#
- 2.Qxg5#
- 1...Rh5
- 2.Re5#
- 1...Qxd4!
- threat
- 1.Qf5?
- threat
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 2.Qxe5#
- 1...Qxd4
- 2.Rxe5#
- 1...Rxf5
- 2.Rf4#
- 1...Sxd6
- 2.Qxe5#
- 1...f1Q
- 2.Qxe5#
- 1...f1S
- 2.Qxe5#
- 1...f1B
- 2.Qxe5#
- 1...f1R
- 2.Qxe5#
- 1...Qc1
- 2.Qxe5#
- 1...Qe1
- 2.Qxe5#
- 1...Qd1
- 2.Qxe5#
- 1...Qc2
- 2.Qxe5#
- 1...Qe2
- 2.Qxe5#
- 1...Qd3
- 2.Qxe5#
- 1...Sf6
- 2.Qxe5#
- 1...gxf5!
- threat
- 1.Qh2?
- threat
- 2.Qxe5#
- 1...Qxd4
- 2.Rxe5#
- 1...Rxe4
- 2.Qe5#
- 1...Rf5
- 2.Rf4#
- 1...Rg5
- 2.Rg4#
- 1...Rh5
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 1...Rxe6+!
- threat
- 1.Qxe3?
- threat
- 2.Rxe5#
- 1...Rxe6+
- 2.Rxe6#
- 1...Rxe4
- 2.Bxe4#
- 2.Qxe4#
- 1...Rf5
- 2.Rf4#
- 2.Re5#
- 1...Rg5
- 2.Rg4#
- 2.Re5#
- 1...Rh5
- 2.Rh4#
- 2.Re5#
- 1...Qxe3!
- threat
- 1.Qg3?
- threat
- 2.Qxe5#
- 1...Qxd4
- 2.Rxe5#
- 1...Rxe4
- 2.Qe5#
- 1...Rf5
- 2.Rf4#
- 1...Rg5
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 2.Qxg5#
- 1...Rh5
- 2.Rh4#
- 1...Rxe6+!
- threat
- 1.Qh4?
- threat
- 2.Rxe5#
- 1...Rxe6+
- 2.Rxe6#
- 1...Rxe4
- 2.Qxe4#
- 1...Rf5
- 2.Rf4#
- 2.Re5#
- 1...Rg5
- 2.Rg4#
- 2.Re5#
- 2.Qxg5#
- 1...Rh5
- 2.Rxe3#
- 2.Rf4#
- 2.Rg4#
- 2.Re5#
- 1...Qxd4!
- threat
- 1.Qg4?
- Keys
- 1.Qh8!
- threat
- 2.Qxe5#
- 1...Rxe6+
- 2.Rxe6#
- 1...Qxd4
- 2.Rxe5#
- 1...Rxe4
- 2.Qe5#
- 1...Rf5
- 2.Rf4#
- 1...Rg5
- 2.Rg4#
- 1...Rh5
- 2.Rh4#
- 1...Sf6
- 2.Qa8#
- 1...Sg7
- 2.Qa8#
- threat
- 1.Qh8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- R(e);N_GUARD,N_PINP(H)::B(A)+R(E)
- R(e);CHECK,OGATE,XP(H)::QAB1(C),XR(e)
- Tries
- Try
- Q(C);
- Threat
- B(A)+R(E),DCHECK,XR(e)
- Vars
- R(e);OGATE,P_SPINR(e),XR(E)::QAB1(C),XR(e)
- R(e);N_PINP(H)::B(A)+R(E),DCHECK
- Refutation
- Q(a);XP(D)
- Try
- Q(C);P_PINR(e)
- Threat
- DUALS(4)
- Vars
- Q(a);SBLOCK,XP(D)::B(A)+R(E),DCHECK,XR(e)
- R(e);N_PINP(H),N_SPINR(e),XQ(C)::B(A)+R(E)
- S(g);XP(G)::QAR1(C),XR(e)
- P(b);::QAR1(C),XR(e)
- Q(a);::QAR1(C),XR(e)
- S(g);::QAR1(C),XR(e)
- Refutation
- P(f);N_SPINR(e),XQ(C)
- Try
- Q(C);
- Threat
- QAR1(C),XR(e)
- Vars
- Q(a);SBLOCK,XP(D)::B(A)+R(E),DCHECK,XR(e)
- R(e);P_SPINR(e),XR(E)::QAR1(C)
- R(e);N_GUARD,N_PINP(H)::B(A)+R(E)
- Refutation
- R(e);CHECK,XP(H)
- Try
- Q(C);XP(c)
- Threat
- B(A)+R(E),DCHECK,XR(e)
- Vars
- R(e);CHECK,OGATE,XP(H)::B(A)+R(E),XR(e)
- Refutation
- Q(a);XQ(C)
- Try
- Q(C);
- Threat
- QAR1(C),XR(e)
- Vars
- Q(a);SBLOCK,XP(D)::B(A)+R(E),DCHECK,XR(e)
- R(e);P_SPINR(e),XR(E)::QAR1(C)
- R(e);N_GUARD,N_PINP(H)::B(A)+R(E)
- Refutation
- R(e);CHECK,XP(H)
- Try
- Q(C);
- Threat
- B(A)+R(E),DCHECK,XR(e)
- Vars
- R(e);CHECK,OGATE,XP(H)::B(A)+R(E),XR(e)
- R(e);OGATE,P_SPINR(e),XR(E)::QAB1(C),XR(e)
- Refutation
- Q(a);XP(D)
- Try
- Actual
- Q(C);
- Threat
- QAR1(C),XR(e)
- Vars
- R(e);CHECK,OGATE,XP(H)::B(A)+R(E),XR(e)
- Q(a);SBLOCK,XP(D)::B(A)+R(E),DCHECK,XR(e)
- R(e);P_SPINR(e),XR(E)::QAR1(C)
- R(e);N_GUARD,N_PINP(H)::B(A)+R(E)
- S(g);OGATE::QAB(C)
Developed and maintained by Brian Stephenson.
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