MESON Chess Problem Database
Problem Display
PID: 101189 (8/4p3/4p2Q/4rkp1/3pR3/3R1P2/4P3/1B2K1B1 w - - 0 1)
Pulitzer, Walter
Good Companions, 1921
#2
8 + 6
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ra5
- 2.Qxe6#
- 1...Rb5
- 2.Qxe6#
- 1...Rc5
- 2.Qxe6#
- 1...Rd5
- 2.Qxe6#
- 1...g4
- 2.Rf4#
- 1...Ra5
- Tries
- 1.Kd1?
- 1...Ra5
- 2.Qxe6#
- 1...Rb5
- 2.Qxe6#
- 1...Rc5
- 2.Qxe6#
- 1...Rd5
- 2.Qxe6#
- 1...g4
- 2.Rf4#
- 1...Rxe4!
- 1...Ra5
- 1.Kf1?
- 1...Ra5
- 2.Qxe6#
- 1...Rb5
- 2.Qxe6#
- 1...Rc5
- 2.Qxe6#
- 1...Rd5
- 2.Qxe6#
- 1...g4
- 2.Rf4#
- 1...Rxe4!
- 1...Ra5
- 1.Kd2?
- 1...Ra5
- 2.Qxe6#
- 1...Rb5
- 2.Qxe6#
- 1...Rc5
- 2.Qxe6#
- 1...Rd5
- 2.Qxe6#
- 1...g4
- 2.Rf4#
- 1...Rxe4!
- 1...Ra5
- 1.Kf2?
- 1...Ra5
- 2.Qxe6#
- 1...Rb5
- 2.Qxe6#
- 1...Rc5
- 2.Qxe6#
- 1...Rd5
- 2.Qxe6#
- 1...g4
- 2.Rf4#
- 1...Rxe4!
- 1...Ra5
- 1.Ba2?
- 1...Ra5
- 2.Bxe6#
- 2.Qxe6#
- 1...Rb5
- 2.Bxe6#
- 2.Qxe6#
- 1...Rc5
- 2.Bxe6#
- 2.Qxe6#
- 1...Rd5
- 2.Qxe6#
- 1...g4
- 2.Rf4#
- 1...Rxe4!
- 1...Ra5
- 1.Bc2?
- 1...Ra5
- 2.Qxe6#
- 1...Rb5
- 2.Qxe6#
- 1...Rc5
- 2.Qxe6#
- 1...Rd5
- 2.Qxe6#
- 1...g4
- 2.Rf4#
- 1...Rxe4!
- 1...Ra5
- 1.Bf2?
- 1...Ra5
- 2.Qxe6#
- 1...Rb5
- 2.Qxe6#
- 1...Rc5
- 2.Qxe6#
- 1...Rd5
- 2.Qxe6#
- 1...g4
- 2.Rf4#
- 1...Rxe4!
- 1...Ra5
- 1.Bh2?
- threat
- 2.Rxe5#
- 1...Ra5
- 2.Qxe6#
- 1...Rb5
- 2.Qxe6#
- 1...Rc5
- 2.Qxe6#
- 1...Rd5
- 2.Qxe6#
- 1...Rxe4!
- threat
- 1.Be3?
- threat
- 2.Qxg5#
- 1...g4
- 2.Rf4#
- 2.Qg5#
- 1...dxe3!
- threat
- 1.Bxd4?
- 1...Ra5
- 2.Qxe6#
- 2.Qh7#
- 1...Rb5
- 2.Qxe6#
- 2.Qh7#
- 1...Rc5
- 2.Qxe6#
- 2.Qh7#
- 1...Rd5
- 2.Qxe6#
- 2.Qh7#
- 1...g4
- 2.Rf4#
- 2.Rxe5#
- 1...Rxe4!
- 1...Ra5
- 1.Rdxd4?
- threat
- 2.Rf4#
- 1...Ra5
- 2.Re3#
- 2.Rxe6#
- 2.Qxe6#
- 1...Rb5
- 2.Qxe6#
- 1...Rc5
- 2.Qxe6#
- 1...Rd5
- 2.Re3#
- 2.Rxe6#
- 2.Qxe6#
- 1...Rxe4!
- threat
- 1.Rxe5+?
- 1...Kf4
- 2.Bh2#
- 2.Qxg5#
- 2.Qh2#
- 1...Kxe5!
- 1...Kf4
- 1.Kd1?
- Keys
- 1.f4!
- 1...Kxe4
- 2.Rxd4#
- 1...Kg4
- 2.Qh3#
- 1...Rxe4
- 2.Qxg5#
- 1...gxf4
- 2.Rxf4#
- 1...Ra5
- 2.Qxe6#
- 1...Rb5
- 2.Qxe6#
- 1...Rc5
- 2.Qxe6#
- 1...Rd5
- 2.Qxe6#
- 1...g4
- 2.Rxe5#
- 1...Kxe4
- 1.f4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- R(b);N_GUARD::QAB1(H),XP(e)
- P(d);N_GUARD::R1(G)
- Tries
- Try
- K(B);P-FLIGHT
- Vars
- R(b);N_GUARD::QAB1(H),XP(e)
- P(d);N_GUARD::R1(G)
- Refutation
- R(b);XR(G)
- Try
- K(B);P-FLIGHT
- Vars
- R(b);N_GUARD::QAB1(H),XP(e)
- P(d);N_GUARD::R1(G)
- Refutation
- R(b);XR(G)
- Try
- K(B);S_FLIGHT
- Vars
- R(b);N_GUARD::QAB1(H),XP(e)
- P(d);N_GUARD::R1(G)
- Refutation
- R(b);XR(G)
- Try
- K(B);S_FLIGHT
- Vars
- R(b);N_GUARD::QAB1(H),XP(e)
- P(d);N_GUARD::R1(G)
- Refutation
- R(b);XR(G)
- Try
- B(A);
- Vars
- R(b);N_GUARD::QAB1(H),XP(e)
- P(d);N_GUARD::R1(G)
- Refutation
- R(b);P_PINP(D),XR(G)
- Try
- B(A);
- Vars
- R(b);N_GUARD::QAB1(H),XP(e)
- P(d);N_GUARD::R1(G)
- Refutation
- R(b);P_PINP(D),XR(G)
- Try
- B(C);
- Vars
- R(b);N_GUARD::QAB1(H),XP(e)
- P(d);N_GUARD::R1(G)
- Refutation
- R(b);P_PINP(D),XR(G)
- Try
- B(C);
- Threat
- R1(G),XR(b)
- Vars
- R(b);N_GUARD::QAB1(H),XP(e)
- Refutation
- R(b);P_PINP(D),XR(G)
- Try
- B(C);
- Threat
- QAR1(H),XP(d)
- Refutation
- P(a);XB(C)
- Try
- B(C);XP(a)
- Refutation
- R(b);P_PINP(D),XR(G)
- Try
- R(E);XP(a)
- Threat
- B(A)+R(G),DCHECK
- Vars
- R(b);N_GUARD::QAB1(H),XP(e)
- Refutation
- R(b);P_PINP(D),P_SPINR(b),XR(G)
- Try
- R(G);CHECK,XR(b)
- Refutation
- K(c);P-FLIGHT,XR(G)
- Try
- Actual
- P(F);
- Vars
- K(c);OGATEB,S_FLIGHT,XR(G)::B(A)+R(E),DCHECK,XP(a)
- K(c);S_FLIGHT::QAB1(H)
- R(b);P_PINP(D),SBLOCK,XR(G)::QAR1(H),XP(d)
- P(d);OGATE,XP(F)::R1(G),XP(d)
- R(b);N_GUARD::QAB1(H),XP(e)
- P(d);SBLOCK::R1(G),XR(b)
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