MESON Chess Problem Database
Problem Display
PID: 154859 (4K3/8/8/8/3N4/5P2/2Qp1pR1/4k3 w - - 0 1)
Opdenoordt, Joseph J
2nd Prize, Good Companions (May Meredith Ty.), 1916
#2
5 + 3
| 5454 | Near Snap | 2022 |
SOLUTION
- SOUND
- Sets
- 1...d1Q
- 2.Qxf2#
- 1...d1S
- 2.Qe2#
- 1...d1B
- 2.Qxf2#
- 1...d1R
- 2.Qe2#
- 2.Qxf2#
- 1...f1Q
- 2.Qxd2#
- 1...f1S
- 2.Re2#
- 1...f1B
- 2.Qxd2#
- 1...f1R
- 2.Re2#
- 2.Qxd2#
- 1...d1Q
- Tries
- 1.Kd7?
- 1...d1Q
- 2.Qxf2#
- 1...d1S
- 2.Qe2#
- 1...d1B
- 2.Qxf2#
- 1...d1R
- 2.Qe2#
- 2.Qxf2#
- 1...f1Q
- 2.Qxd2#
- 1...f1S
- 2.Re2#
- 1...f1B
- 2.Qxd2#
- 1...f1R
- 2.Re2#
- 2.Qxd2#
- 1...Kf1!
- 1...d1Q
- 1.Ke7?
- 1...d1Q
- 2.Qxf2#
- 1...d1S
- 2.Qe2#
- 1...d1B
- 2.Qxf2#
- 1...d1R
- 2.Qe2#
- 2.Qxf2#
- 1...f1Q
- 2.Qxd2#
- 1...f1S
- 2.Re2#
- 1...f1B
- 2.Qxd2#
- 1...f1R
- 2.Re2#
- 2.Qxd2#
- 1...Kf1!
- 1...d1Q
- 1.Kf7?
- 1...d1Q
- 2.Qxf2#
- 1...d1S
- 2.Qe2#
- 1...d1B
- 2.Qxf2#
- 1...d1R
- 2.Qe2#
- 2.Qxf2#
- 1...f1Q
- 2.Qxd2#
- 1...f1S
- 2.Re2#
- 1...f1B
- 2.Qxd2#
- 1...f1R
- 2.Re2#
- 2.Qxd2#
- 1...Kf1!
- 1...d1Q
- 1.Kd8?
- 1...d1Q
- 2.Qxf2#
- 1...d1S
- 2.Qe2#
- 1...d1B
- 2.Qxf2#
- 1...d1R
- 2.Qe2#
- 2.Qxf2#
- 1...f1Q
- 2.Qxd2#
- 1...f1S
- 2.Re2#
- 1...f1B
- 2.Qxd2#
- 1...f1R
- 2.Re2#
- 2.Qxd2#
- 1...Kf1!
- 1...d1Q
- 1.Kf8?
- 1...d1Q
- 2.Qxf2#
- 1...d1S
- 2.Qe2#
- 1...d1B
- 2.Qxf2#
- 1...d1R
- 2.Qe2#
- 2.Qxf2#
- 1...f1Q
- 2.Qxd2#
- 1...f1S
- 2.Re2#
- 1...f1B
- 2.Qxd2#
- 1...f1R
- 2.Re2#
- 2.Qxd2#
- 1...Kf1!
- 1...d1Q
- 1.Qe4+?
- 1...Kd1
- 2.Qb1#
- 1...Kf1!
- 1...Kd1
- 1.Qxd2+?
- 1...Kf1
- 2.Qxf2#
- 1...Kxd2!
- 1...Kf1
- 1.f4?
- 1...d1Q
- 2.Qxf2#
- 1...d1S
- 2.Qe2#
- 1...d1B
- 2.Qxf2#
- 1...d1R
- 2.Qe2#
- 2.Qxf2#
- 1...f1Q
- 2.Qxd2#
- 1...f1S
- 2.Sf3#
- 2.Re2#
- 1...f1B
- 2.Sf3#
- 2.Qxd2#
- 1...f1R
- 2.Re2#
- 2.Qxd2#
- 1...Kf1!
- 1...d1Q
- 1.Kd7?
- Keys
- 1.Rh2!
- 1...Kf1
- 2.Qd1#
- 1...d1Q
- 2.Qxf2#
- 1...d1S
- 2.Qe2#
- 1...d1B
- 2.Qxf2#
- 1...d1R
- 2.Qe2#
- 2.Qxf2#
- 1...f1Q
- 2.Qxd2#
- 1...f1S
- 2.Re2#
- 1...f1B
- 2.Qxd2#
- 1...f1R
- 2.Re2#
- 2.Qxd2#
- 1...Kf1
- 1.Rh2!
This anticipates 227261(1928)
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- P(b);OGATE,SBLOCK::QAB1(A),XP(c)
- P(b);OGATE::QAR1(A)
- P(c);SBLOCK::QAB1(A),XP(b)
- P(c);OGATE,SBLOCK::R1(B)
- Tries
- Try
- K(E);S_FLIGHT
- Vars
- P(b);OGATE,P_PINS(D),SBLOCK::QAB1(A),XP(c)
- P(b);OGATE::QAR1(A)
- P(b);OGATE,SBLOCK::QAB1(A),XP(c)
- P(c);SBLOCK::QAB1(A),XP(b)
- P(c);OGATE,SBLOCK::R1(B)
- Refutation
- K(a);P-FLIGHT
- Try
- K(E);P-FLIGHT
- Vars
- P(b);OGATE,SBLOCK::QAB1(A),XP(c)
- P(b);OGATE::QAR1(A)
- P(c);SBLOCK::QAB1(A),XP(b)
- P(c);OGATE,SBLOCK::R1(B)
- Refutation
- K(a);P-FLIGHT
- Try
- K(E);S_FLIGHT
- Vars
- P(b);OGATE,SBLOCK::QAB1(A),XP(c)
- P(b);OGATE::QAR1(A)
- P(c);P_PINP(C),SBLOCK::QAB1(A),XP(b)
- P(c);OGATE,SBLOCK::R1(B)
- P(c);SBLOCK::QAB1(A),XP(b)
- Refutation
- K(a);P-FLIGHT
- Try
- K(E);P-FLIGHT
- Vars
- P(b);OGATE,P_PINS(D),SBLOCK::QAB1(A),XP(c)
- P(b);OGATE::QAR1(A)
- P(b);OGATE,SBLOCK::QAB1(A),XP(c)
- P(c);SBLOCK::QAB1(A),XP(b)
- P(c);OGATE,SBLOCK::R1(B)
- Refutation
- K(a);P-FLIGHT
- Try
- K(E);P-FLIGHT
- Vars
- P(b);OGATE,SBLOCK::QAB1(A),XP(c)
- P(b);OGATE::QAR1(A)
- P(c);P_PINP(C),SBLOCK::QAB1(A),XP(b)
- P(c);OGATE,SBLOCK::R1(B)
- P(c);SBLOCK::QAB1(A),XP(b)
- Refutation
- K(a);P-FLIGHT
- Try
- Q(A);CHECK
- Vars
- K(a);P-FLIGHT::QAR2(A)
- Refutation
- K(a);P-FLIGHT
- Try
- Q(A);CHECK,XP(b)
- Vars
- K(a);P-FLIGHT::QAR1(A),XP(c)
- Refutation
- K(a);P_SPINP(c),S_FLIGHT,XQ(A)
- Try
- P(C);
- Vars
- P(b);OGATE,SBLOCK::QAB1(A),XP(c)
- P(b);OGATE::QAR1(A)
- P(c);SBLOCK::QAB1(A),XP(b)
- Refutation
- K(a);P-FLIGHT
- Try
- Actual
- R(B);
- Vars
- K(a);P-FLIGHT::QAR2(A)
- P(b);OGATE,SBLOCK::QAB1(A),XP(c)
- P(b);OGATE::QAR1(A)
- P(c);SBLOCK::QAB1(A),XP(b)
- P(c);OGATE,SBLOCK::R1(B)
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