MESON Chess Problem Database
Problem Display
PID: 58670 (K7/8/6p1/3N2Pb/B5R1/3Q1N1k/5P2/6rr w - - 0 1)
de Jong, Leonard Nicholaas
1st Prize, Tijdschrift vd NSB, 1895
#2
8 + 5
| 16106 | Probleemcomponisten I - L N de Jong | 1941 |
SOLUTION
- SOUND
- Sets
- 1...Kxg4
- 2.Bd7#
- 1...Ra1
- 2.Rg3#
- 1...Rb1
- 2.Rg3#
- 1...Rc1
- 2.Rg3#
- 1...Rd1
- 2.Rg3#
- 1...Re1
- 2.Rg3#
- 1...Rf1
- 2.Rg3#
- 1...Rg2
- 2.Rh4#
- 1...Rg3
- 2.Rxg3#
- 1...Bxg4
- 2.Sf4#
- 1...Kxg4
- Tries
- 1.Se1+?
- 1...Kh2
- 2.Rh4#
- 1...Rg3
- 2.Qxg3#
- 1...Kxg4!
- 1...Kh2
- 1.Sxg1+?
- 1...Kh2
- 2.Qg3#
- 2.Qh3#
- 1...Kxg4!
- 1...Kh2
- 1.Sh2+?
- 1...Rg3
- 2.Qxg3#
- 1...Kxh2!
- 1...Rg3
- 1.Se5+?
- 1...Rg3
- 2.Qxg3#
- 1...Kh2!
- 1...Rg3
- 1.Bd7?
- threat
- 2.Sf4#
- 2.Rg3#
- 1...Rxg4
- 2.Sf4#
- 1...Bxg4
- 2.Sf4#
- 1...Rg3
- 2.Sf4#
- 2.Rxg3#
- 1...Ra1+!
- threat
- 1.Qf1+?
- 1...Rxf1
- 2.Rg3#
- 1...Rg2
- 2.Rg3#
- 2.Rh4#
- 2.Qxg2#
- 1...Kxg4!
- 1...Rxf1
- 1.Qe2?
- 1...Kxg4
- 2.Bd7#
- 1...Bxg4
- 2.Sf4#
- 1...Rg3
- 2.Rxg3#
- 1...Rh2
- 2.Sxg1#
- 1...Ra1
- 2.Rg3#
- 1...Rb1
- 2.Rg3#
- 1...Rc1
- 2.Rg3#
- 1...Rd1
- 2.Rg3#
- 1...Re1
- 2.Rg3#
- 1...Rf1
- 2.Rg3#
- 1...Rg2
- 2.Rh4#
- 1...Rxg4!
- 1...Kxg4
- 1.Qc4?
- 1...Bxg4
- 2.Sf4#
- 1...Rg3
- 2.Rxg3#
- 1...Rh2
- 2.Sxg1#
- 1...Ra1
- 2.Rg3#
- 1...Rb1
- 2.Rg3#
- 1...Rc1
- 2.Rg3#
- 1...Rd1
- 2.Rg3#
- 1...Re1
- 2.Rg3#
- 1...Rf1
- 2.Rg3#
- 1...Rg2
- 2.Rh4#
- 1...Rxg4!
- 1...Bxg4
- 1.Qe4?
- 1...Bxg4
- 2.Sf4#
- 1...Rg3
- 2.Rxg3#
- 1...Rh2
- 2.Sxg1#
- 1...Ra1
- 2.Rg3#
- 1...Rb1
- 2.Rg3#
- 1...Rc1
- 2.Rg3#
- 1...Rd1
- 2.Rg3#
- 1...Re1
- 2.Rg3#
- 1...Rf1
- 2.Rg3#
- 1...Rg2
- 2.Rh4#
- 1...Rxg4!
- 1...Bxg4
- 1.Qf5?
- threat
- 2.Sf4#
- 2.Rg3#
- 1...Rxg4
- 2.Sf4#
- 1...Bxg4
- 2.Sf4#
- 1...Rg3
- 2.Sf4#
- 2.Rxg3#
- 1...gxf5!
- threat
- 1.Qd4?
- 1...Bxg4
- 2.Sf4#
- 1...Rg3
- 2.Rxg3#
- 1...Rh2
- 2.Sxg1#
- 1...Ra1
- 2.Rg3#
- 1...Rb1
- 2.Rg3#
- 1...Rc1
- 2.Rg3#
- 1...Rd1
- 2.Rg3#
- 1...Re1
- 2.Rg3#
- 1...Rf1
- 2.Rg3#
- 1...Rg2
- 2.Rh4#
- 1...Rxg4!
- 1...Bxg4
- 1.Se1+?
- Keys
- 1.Qd1!
- 1...Kxg4
- 2.Bd7#
- 1...Rxd1
- 2.Rg3#
- 1...Rxg4
- 2.Qxh1#
- 1...Bxg4
- 2.Sf4#
- 1...Rg3
- 2.Rxg3#
- 1...Rh2
- 2.Sxg1#
- 1...Re1
- 2.Rg3#
- 1...Rf1
- 2.Rg3#
- 1...Rg2
- 2.Rh4#
- 1...Kxg4
- 1.Qd1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 3
- Sets
- K(c);OGATEB,S_FLIGHT,XR(E)::B(D)
- R(a);N_GUARD,P_PINB(D)::R1(E)
- R(a);N_GUARD::R1(E)
- R(a);SBLOCK::R1(E)
- R(a);N_GUARD::R1(E),XR(a)
- B(d);SBLOCK,XR(E)::S(F)
- Tries
- Try
- S(C);CHECK
- Vars
- K(c);P-FLIGHT::R(E)
- R(a);N_GUARD,P_SPINR(a)::QAR1(B),XR(a)
- Refutation
- K(c);S_FLIGHT,XR(E)
- Try
- S(C);CHECK,XR(a)
- Refutation
- K(c);S_FLIGHT,XR(E)
- Try
- S(C);CHECK
- Vars
- R(a);N_GUARD,P_SPINR(a)::QAR1(B),XR(a)
- Refutation
- K(c);P-FLIGHT,XS(C)
- Try
- S(C);CHECK
- Vars
- R(a);N_GUARD,P_SPINR(a)::QAR1(B),XR(a)
- Refutation
- K(c);P-FLIGHT
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- R(a);P_SPINR(a),XR(E)::S(F)
- B(d);P_SPINB(d),XR(E)::S(F)
- Refutation
- R(a);CHECK
- Try
- Q(B);CHECK
- Vars
- R(a);XQ(B)::R1(E)
- Refutation
- K(c);S_FLIGHT,XR(E)
- Try
- Q(B);
- Vars
- K(c);OGATEB,S_FLIGHT,XR(E)::B(D)
- B(d);SBLOCK,XR(E)::S(F)
- R(a);N_GUARD::R1(E),XR(a)
- R(b);N_GUARD,SBLOCK::S(C),XR(a)
- R(a);N_GUARD,P_PINB(D)::R1(E)
- R(a);N_GUARD::R1(E)
- R(a);SBLOCK::R1(E)
- Refutation
- R(a);XR(E)
- Try
- Q(B);
- Vars
- B(d);SBLOCK,XR(E)::S(F)
- R(a);N_GUARD::R1(E),XR(a)
- R(b);N_GUARD,SBLOCK::S(C),XR(a)
- R(a);N_GUARD,P_PINB(D)::R1(E)
- R(a);N_GUARD::R1(E)
- R(a);SBLOCK::R1(E)
- Refutation
- R(a);XR(E)
- Try
- Q(B);
- Vars
- B(d);SBLOCK,XR(E)::S(F)
- R(a);N_GUARD::R1(E),XR(a)
- R(b);N_GUARD,SBLOCK::S(C),XR(a)
- R(a);N_GUARD,P_PINB(D)::R1(E)
- R(a);N_GUARD::R1(E)
- R(a);SBLOCK::R1(E)
- Refutation
- R(a);XR(E)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- R(a);P_SPINR(a),XR(E)::S(F)
- B(d);P_SPINB(d),XR(E)::S(F)
- Refutation
- P(e);XQ(B)
- Try
- Q(B);
- Vars
- B(d);SBLOCK,XR(E)::S(F)
- R(a);N_GUARD::R1(E),XR(a)
- R(b);N_GUARD,SBLOCK::S(C),XR(a)
- R(a);N_GUARD,P_PINB(D)::R1(E)
- R(a);N_GUARD::R1(E)
- R(a);SBLOCK::R1(E)
- Refutation
- R(a);XR(E)
- Try
- Actual
- Q(B);
- Vars
- K(c);OGATEB,S_FLIGHT,XR(E)::B(D)
- R(a);N_GUARD,XQ(B)::R1(E)
- R(a);OGATE,SBLOCK,XR(E)::QAR2(B),XR(b)
- B(d);SBLOCK,XR(E)::S(F)
- R(a);N_GUARD::R1(E),XR(a)
- R(b);N_GUARD,SBLOCK::S(C),XR(a)
- R(a);N_GUARD::R1(E)
- R(a);SBLOCK::R1(E)
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