MESON Chess Problem Database

Problem Display
PID: 10540 (1R6/3p4/3k1NP1/p2P4/P3B2Q/2N5/8/BR5K w - - 0 1)

Mees, Wouter Jacob Gregorius

1st Prize, Schakend Nederland, 1965

1R6/3p4/3k1NP1/p2P4/P3B2Q/2N5/8/BR5K

#2

11 + 3

5862 An ABC of Chess Problems 1970
3772 FIDE Album (1965-1967) 1976
102 Probleemblad 2006
23 Die Schwalbe 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Sb5#
    • 1...Kc7
      • 2.Se8#
  • Tries
    • 1.Sb5+?
      • 1...Ke7
        • 2.Sg4#
        • 2.Sh5#
        • 2.Sh7#
        • 2.Sg8#
        • 2.Re8#
        • 2.Qh7#
      • 1...Kc5!
    • 1.Sxd7?
      • 1...Kxd7
        • 2.Qd8#
      • 1...Kc7!
    • 1.Se8+?
      • 1...Ke5
        • 2.Sd1#
        • 2.Sa2#
        • 2.Se2#
        • 2.Sb5#
        • 2.Qf6#
      • 1...Kc5!
    • 1.Bc2?
      • 1...Ke5
        • 2.Sb5#
      • 1...Kc7
        • 2.Se8#
      • 1...Ke7
        • 2.Sfe4#
      • 1...Kc5!
    • 1.R1b6+?
      • 1...Ke5
        • 2.Sb1#
        • 2.Sd1#
        • 2.Sa2#
        • 2.Se2#
        • 2.Sb5#
      • 1...Kc7
        • 2.Sb5#
        • 2.Se8#
        • 2.d6#
      • 1...Ke7
        • 2.Sg4#
        • 2.Sh5#
        • 2.Sh7#
        • 2.Sg8#
        • 2.Re8#
        • 2.Qh7#
      • 1...Kc5!
    • 1.R1b7?
      • 1...Ke5
        • 2.Sb5#
      • 1...Ke7
        • 2.Rxd7#
      • 1...Kc5!
    • 1.Rc8?
      • 1...Ke5
        • 2.Sb5#
      • 1...Ke7!
    • 1.Qf2?
      • 1...Ke5
        • 2.Sb5#
      • 1...Kc7
        • 2.Se8#
        • 2.Qc5#
        • 2.Qb6#
      • 1...Ke7!
    • 1.Qg3+?
      • 1...Ke7
        • 2.Sg8#
        • 2.Qe5#
      • 1...Kc5!
    • 1.Qg5?
      • 1...Kc7
        • 2.Se8#
      • 1...Ke7
        • 2.Qe5#
      • 1...Kc5!
    • 1.Qh2+?
      • 1...Ke7
        • 2.Sg8#
        • 2.Qe5#
      • 1...Kc5!
    • 1.Qf4+?
      • 1...Ke7
        • 2.Sg8#
        • 2.Re8#
        • 2.Qe5#
      • 1...Kc5!
    • 1.Qh5?
      • 1...Kc7
        • 2.Se8#
      • 1...Ke7
        • 2.Qe5#
      • 1...Kc5!
    • 1.Qh6?
      • 1...Ke5
        • 2.Sb5#
      • 1...Kc7
        • 2.Se8#
      • 1...Ke7
        • 2.Qf8#
      • 1...Kc5!
  • Keys
    • 1.Bd3!
      • 1...Kc5
        • 2.Sce4#
      • 1...Ke5
        • 2.Sb5#
      • 1...Kc7
        • 2.Se8#
      • 1...Ke7
        • 2.Sfe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::B(A)+S(D)
    • K(b);S_FLIGHT::S(I)
  • Tries
    • Try
      • S(D);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(I);XP(c)
      • Vars
        • K(b);OGATEB,P-FLIGHT,XS(I)::QAR1(G)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(I);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(F);
      • Vars
        • K(b);S_FLIGHT::B(A)+S(D)
        • K(b);S_FLIGHT::S(I)
        • K(b);S_FLIGHT::QAB(G)+S(I)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(B);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(b);S_FLIGHT::B(A)+S(D)
        • K(b);P_SPINP(c),S_FLIGHT::R1(B),XP(c)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(K);
      • Vars
        • K(b);S_FLIGHT::B(A)+S(D)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(G);
      • Vars
        • K(b);S_FLIGHT::B(A)+S(D)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(G);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(G);
      • Vars
        • K(b);S_FLIGHT::S(I)
        • K(b);S_FLIGHT::QAR2(G)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(G);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(G);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(G);
      • Vars
        • K(b);S_FLIGHT::S(I)
        • K(b);S_FLIGHT::QAR2(G)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(G);
      • Vars
        • K(b);S_FLIGHT::B(A)+S(D)
        • K(b);S_FLIGHT::S(I)
        • K(b);S_FLIGHT::QAB1(G)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • B(F);
    • Vars
      • K(b);S_FLIGHT::S(D)
      • K(b);S_FLIGHT::B(A)+S(D)
      • K(b);S_FLIGHT::S(I)
      • K(b);S_FLIGHT::QAB(G)+S(I)
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