MESON Chess Problem Database

Problem Display
PID: 54310 (2N2N2/1Q6/2n1P3/2pk1PBR/6R1/n3PK2/2P5/8 w - - 0 1)

Reeves, Alfred Christopher

Comm., The Problemist, 1996

2N2N2/1Q6/2n1P3/2pk1PBR/6R1/n3PK2/2P5/8

#2

11 + 4

56 The Problemist 2004
56 The Problemist 2005

SOLUTION

  • SOUND
  • Tries
    • 1.Se7+?
      • 1...Ke5
        • 2.Qc7#
      • 1...Kd6!
    • 1.Bh4?
      • threat
        • 2.f6#
      • 1...Ke5
        • 2.f6#
      • 1...Sc4!
    • 1.Bf6?
      • threat
        • 2.Qd7#
      • 1...Sc4
        • 2.e4#
      • 1...Sb5
        • 2.c4#
      • 1...c4!
    • 1.Be7?
      • threat
        • 2.f6#
      • 1...Ke5
        • 2.f6#
      • 1...Sc4!
    • 1.Bd8?
      • threat
        • 2.f6#
      • 1...Ke5
        • 2.f6#
      • 1...Sc4!
    • 1.Qxc6+?
      • 1...Ke5
        • 2.Qe4#
        • 2.Qxc5#
      • 1...Kxc6!
    • 1.f6?
      • threat
        • 2.Bh4#
        • 2.Bh6#
      • 1...Ke5
        • 2.Bh4#
      • 1...Sc4!
  • Keys
    • 1.Bf4!
      • threat
        • 2.Sb6#
      • 1...Kc4
        • 2.Qb3#
      • 1...Sc4
        • 2.Se7#
      • 1...c4
        • 2.f6#

There are these versions: 54311

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(J);CHECK
      • Vars
        • K(c);N_SPINS(d),P-FLIGHT::QAB(I)
      • Refutation
        • K(c);N_SPINS(d),P-FLIGHT
    • Try
      • B(F);
      • Threat
        • R(G)+P(E)
      • Vars
        • K(c);N_SPINS(d),P-FLIGHT::R(G)+P(E)
      • Refutation
        • S(a);
    • Try
      • B(F);
      • Threat
        • QAR2(I)
      • Vars
        • S(a);SBLOCK::P(B)
        • S(a);N_GUARD::P(A)
      • Refutation
        • P(b);
    • Try
      • B(F);
      • Threat
        • R(G)+P(E)
      • Vars
        • K(c);N_SPINS(d),P-FLIGHT::R(G)+P(E)
      • Refutation
        • S(a);
    • Try
      • B(F);
      • Threat
        • R(G)+P(E)
      • Vars
        • K(c);N_SPINS(d),P-FLIGHT::R(G)+P(E)
      • Refutation
        • S(a);
    • Try
      • Q(I);CHECK,XS(d)
      • Refutation
        • K(c);S_FLIGHT,XQ(I)
    • Try
      • P(E);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);N_SPINS(d),P-FLIGHT::R(G)+B(F)
      • Refutation
        • S(a);
  • Actual
    • B(F);
    • Threat
      • S(J)
    • Vars
      • K(c);N_SPINS(d),S_FLIGHT::QAB1(I)
      • S(a);SBLOCK::S(J)
      • P(b);SBLOCK::R(G)+P(E)
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