Meson Chess Problem Database

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Problem Display

PID: 126 (b3K2b/r1R2p1r/4k3/1N1n4/2BP1Q2/8/8/8 w - - 0 1)

Loshinski, Lev Ilich

1/2 HM., Tijdschrift vd NSB, 1930

6 + 7

58	Tijdschrift vd NSB	1931
3147	Chess Problems: Introduction to an Art	1963
5862	An ABC of Chess Problems	1970
3098	FIDE Album (1914-1944) (I)	1971
274	diagrammes	1973
102	Probleemblad	1979
3364	Solving in Style	1985
4640	Chess Wizardry: The New ABC of Chess Problems	1996
45	Schach	2004
422	Suomen Tehtavaniekat	2007
136	Problem Observer	2011
3713	Snap	2019

SOLUTION

SOUND
Sets
- 1...Ra1
  - 2.Re7#
- 1...Ra2
  - 2.Re7#
- 1...Ra3
  - 2.Re7#
- 1...Ra4
  - 2.Re7#
- 1...Ra5
  - 2.Re7#
- 1...Ra6
  - 2.Re7#
- 1...Rb7
  - 2.Rc6#
- 1...Rxc7
  - 2.Sxc7#
- 1...Rh1
  - 2.Qxf7#
- 1...Rh2
  - 2.Qxf7#
- 1...Rh3
  - 2.Qxf7#
- 1...Rh4
  - 2.Qxf7#
- 1...Rh5
  - 2.Qxf7#
- 1...Rh6
  - 2.Qxf7#
- 1...Rg7
  - 2.Qe5#
- 1...Bc6+
  - 2.Rxc6#
- 1...Bb7
  - 2.Re7#
- 1...Bxd4
  - 2.Sxd4#
- 1...Be5
  - 2.Qxe5#
- 1...Bf6
  - 2.Qg4#
- 1...Bg7
  - 2.Qxf7#
- 1...f5
  - 2.Qd6#
- 1...f6
  - 2.Qe4#
Tries
- 1.Kd8?
  - 1...Rxc7
    - 2.Sxc7#
  - 1...Bxd4
    - 2.Sxd4#
  - 1...f5
    - 2.Qd6#
  - 1...Ra1
    - 2.Re7#
  - 1...Ra2
    - 2.Re7#
  - 1...Ra3
    - 2.Re7#
  - 1...Ra4
    - 2.Re7#
  - 1...Ra5
    - 2.Re7#
  - 1...Ra6
    - 2.Re7#
  - 1...Rb7
    - 2.Rc6#
  - 1...Rh1
    - 2.Qxf7#
  - 1...Rh2
    - 2.Qxf7#
  - 1...Rh3
    - 2.Qxf7#
  - 1...Rh4
    - 2.Qxf7#
  - 1...Rh5
    - 2.Qxf7#
  - 1...Rh6
    - 2.Qxf7#
  - 1...Rg7
    - 2.Qe5#
  - 1...Bc6
    - 2.Rxc6#
  - 1...Bb7
    - 2.Re7#
  - 1...Be5
    - 2.Qxe5#
  - 1...Bg7
    - 2.Qxf7#
  - 1...f6
    - 2.Qe4#
  - 1...Bf6+!
- 1.Ba2?
  - 1...Bc6+
    - 2.Rxc6#
  - 1...Rxc7
    - 2.Sxc7#
  - 1...Bxd4
    - 2.Sxd4#
  - 1...f5
    - 2.Qd6#
  - 1...Ra3
    - 2.Re7#
  - 1...Ra4
    - 2.Re7#
  - 1...Ra5
    - 2.Re7#
  - 1...Ra6
    - 2.Re7#
  - 1...Rb7
    - 2.Rc6#
  - 1...Rh1
    - 2.Qxf7#
  - 1...Rh2
    - 2.Qxf7#
  - 1...Rh3
    - 2.Qxf7#
  - 1...Rh4
    - 2.Qxf7#
  - 1...Rh5
    - 2.Qxf7#
  - 1...Rh6
    - 2.Qxf7#
  - 1...Rg7
    - 2.Qe5#
  - 1...Bb7
    - 2.Re7#
  - 1...Be5
    - 2.Qxe5#
  - 1...Bf6
    - 2.Qg4#
  - 1...Bg7
    - 2.Qxf7#
  - 1...f6
    - 2.Qe4#
  - 1...Rxa2!
- 1.Rxa7?
  - threat
    - 2.Sc7#
    - 2.Re7#
  - 1...f5
    - 2.Qd6#
  - 1...Bb7
    - 2.Sc7#
  - 1...Be5
    - 2.Re7#
    - 2.Qxe5#
  - 1...Bf6
    - 2.Sc7#
    - 2.Qg4#
  - 1...f6
    - 2.Qe4#
  - 1...Bc6+!
- 1.Rb7?
  - threat
    - 2.Sc7#
  - 1...f5
    - 2.Qd6#
  - 1...Be5
    - 2.Qxe5#
  - 1...f6
    - 2.Qe4#
  - 1...Rxb7!
- 1.Qe4+?
  - 1...Be5
    - 2.Qxe5#
  - 1...Kf6!
Keys
- 1.Bb3!
  - 1...Bc6+
    - 2.Rxc6#
  - 1...Rxc7
    - 2.Sxc7#
  - 1...Bxd4
    - 2.Sxd4#
  - 1...f5
    - 2.Qd6#
  - 1...Ra1
    - 2.Re7#
  - 1...Ra2
    - 2.Re7#
  - 1...Ra3
    - 2.Re7#
  - 1...Ra4
    - 2.Re7#
  - 1...Ra5
    - 2.Re7#
  - 1...Ra6
    - 2.Re7#
  - 1...Rb7
    - 2.Rc6#
  - 1...Rh1
    - 2.Qxf7#
  - 1...Rh2
    - 2.Qxf7#
  - 1...Rh3
    - 2.Qxf7#
  - 1...Rh4
    - 2.Qxf7#
  - 1...Rh5
    - 2.Qxf7#
  - 1...Rh6
    - 2.Qxf7#
  - 1...Rg7
    - 2.Qe5#
  - 1...Bb7
    - 2.Re7#
  - 1...Be5
    - 2.Qxe5#
  - 1...Bf6
    - 2.Qg4#
  - 1...Bg7
    - 2.Qxf7#
  - 1...f6
    - 2.Qe4#

This anticipates 200004(1947)

FEATURES

Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
Sets
- R(c);N_GUARD::R1(E)
- R(c);S_CUTB(f)::R(E)
- R(c);XR(E)::S(D),XR(c)
- R(e);N_GUARD::QAB1(C),XP(d)
- R(e);S_CUTB(g)::QAR1(C)
- B(f);CHECK,N_GUARD::R(E),XB(f)
- B(f);S_CUTR(c)::R1(E)
- B(g);XP(B)::S(D),XB(g)
- B(g);N_GUARD::QAR1(C),XB(g)
- B(g);SBLOCK,S_CUTP(d)::QAB(C)
- B(g);S_CUTR(e)::QAB1(C),XP(d)
- P(d);SBLOCK::QAR1(C)
- P(d);SBLOCK,S_CUTB(g)::QAR2(C)
Tries
- Try
  - K(F);P-FLIGHT
  - Vars
    - R(c);XR(E)::S(D),XR(c)
    - B(g);XP(B)::S(D),XB(g)
    - P(d);SBLOCK::QAR1(C)
    - R(c);N_GUARD::R1(E)
    - R(c);S_CUTB(f)::R(E)
    - R(e);N_GUARD::QAB1(C),XP(d)
    - R(e);S_CUTB(g)::QAR1(C)
    - B(f);N_GUARD::R(E),XB(f)
    - B(f);S_CUTR(c)::R1(E)
    - B(g);N_GUARD::QAR1(C),XB(g)
    - B(g);S_CUTR(e)::QAB1(C),XP(d)
    - P(d);SBLOCK,S_CUTB(g)::QAR2(C)
  - Refutation
    - B(g);CHECK
- Try
  - B(A);
  - Vars
    - B(f);CHECK,N_GUARD::R(E),XB(f)
    - R(c);XR(E)::S(D),XR(c)
    - B(g);XP(B)::S(D),XB(g)
    - P(d);SBLOCK::QAR1(C)
    - R(c);N_GUARD::R1(E)
    - R(c);S_CUTB(f)::R(E)
    - R(e);N_GUARD::QAB1(C),XP(d)
    - R(e);S_CUTB(g)::QAR1(C)
    - B(f);S_CUTR(c)::R1(E)
    - B(g);N_GUARD::QAR1(C),XB(g)
    - B(g);SBLOCK,S_CUTP(d)::QAB(C)
    - B(g);S_CUTR(e)::QAB1(C),XP(d)
    - P(d);SBLOCK,S_CUTB(g)::QAR2(C)
  - Refutation
    - R(c);N_SPINS(a),XB(A)
- Try
  - R(E);XR(c)
  - Threat
    - DUALS(2)
  - Vars
    - P(d);SBLOCK::QAR1(C)
    - B(f);::S(D)
    - P(d);SBLOCK,S_CUTB(g)::QAR2(C)
  - Refutation
    - B(f);CHECK
- Try
  - R(E);
  - Threat
    - S(D)
  - Vars
    - P(d);SBLOCK::QAR1(C)
    - B(g);N_GUARD::QAR1(C),XB(g)
    - P(d);SBLOCK,S_CUTB(g)::QAR2(C)
  - Refutation
    - R(c);XR(E)
- Try
  - Q(C);CHECK
  - Vars
    - B(g);N_GUARD,P_SPINB(g)::QAR1(C),XB(g)
  - Refutation
    - K(b);N_SPINS(a),P-FLIGHT
Actual
- B(A);
- Vars
  - B(f);CHECK,N_GUARD::R(E),XB(f)
  - R(c);XR(E)::S(D),XR(c)
  - B(g);XP(B)::S(D),XB(g)
  - P(d);SBLOCK::QAR1(C)
  - R(c);N_GUARD::R1(E)
  - R(c);S_CUTB(f)::R(E)
  - R(e);N_GUARD::QAB1(C),XP(d)
  - R(e);S_CUTB(g)::QAR1(C)
  - B(f);S_CUTR(c)::R1(E)
  - B(g);N_GUARD::QAR1(C),XB(g)
  - B(g);SBLOCK,S_CUTP(d)::QAB(C)
  - B(g);S_CUTR(e)::QAB1(C),XP(d)
  - P(d);SBLOCK,S_CUTB(g)::QAR2(C)

MESON Chess Problem Database

Problem Display

PID: 126 (b3K2b/r1R2p1r/4k3/1N1n4/2BP1Q2/8/8/8 w - - 0 1)

SOLUTION

FEATURES