MESON Chess Problem Database

Problem Display
PID: 132714 (1bB5/1P5K/3p1Q2/8/2p1k3/RN2P3/2P5/3rrn2 w - - 0 1)

Brummelman, Derk Hendrikus (AKA Bruma, DH)

The Field, 1958

(First published on Thu Feb 20 1958)

1bB5/1P5K/3p1Q2/8/2p1k3/RN2P3/2P5/3rrn2

#2

8 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rd5
      • 2.Qf4#
    • 1...Rxe3
      • 2.Qf5#
    • 1...d5
      • 2.Sc5#
  • Tries
    • 1.Sd2+?
      • 1...Rxd2
        • 2.Qf5#
      • 1...Sxd2
        • 2.Qf5#
      • 1...Kd5!
    • 1.Sc5+?
      • 1...dxc5
        • 2.Qf5#
      • 1...Kd5!
    • 1.Qf3+?
      • 1...Ke5
        • 2.Qf5#
      • 1...Kxf3!
  • Keys
    • 1.Bg4!
      • threat
        • 2.Qe6#
      • 1...Kxe3
        • 2.Qf3#
      • 1...Kd5
        • 2.Bf3#
      • 1...Rxe3
        • 2.Qf5#
      • 1...Sxe3
        • 2.Bf3#
      • 1...Rd5
        • 2.Qf4#
      • 1...d5
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(a);SBLOCK::QAR1(E)
    • R(b);SBLOCK,XP(D)::QAB1(E)
    • P(f);N_GUARD,SBLOCK::S(C)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • R(a);XS(C)::QAB1(E)
        • S(c);XS(C)::QAB1(E)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • S(C);CHECK
      • Vars
        • P(f);XS(C)::QAB1(E)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • K(e);P-FLIGHT::QAR1(E)
      • Refutation
        • K(e);S_FLIGHT,XQ(E)
  • Actual
    • B(H);
    • Threat
      • QAR2(E)
    • Vars
      • K(e);P-FLIGHT,XP(D)::QAR1(E)
      • K(e);S_FLIGHT::B(H)
      • R(b);SBLOCK,XP(D)::QAB1(E)
      • S(c);SBLOCK,XP(D)::B(H)
      • R(a);SBLOCK::QAR1(E)
      • P(f);N_GUARD,SBLOCK::S(C)
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