MESON Chess Problem Database

Problem Display
PID: 40341 (1B1KN1R1/4Rp2/8/3p1k2/6q1/2p4Q/2r2p2/2bb4 w - - 0 1)

Rietveld, Johannes Jacob

Brisbane Courier, 1918

1B1KN1R1/4Rp2/8/3p1k2/6q1/2p4Q/2r2p2/2bb4

#2

6 + 9

3360 Simple Two-move Themes 1924
5454 Near Snap 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Re2
      • 2.Qxg4#
    • 1...Bf4
      • 2.Qd3#
    • 1...Bg5
      • 2.Qh7#
  • Tries
    • 1.Bg3?
      • threat
        • 2.Re5#
      • 1...Re2
        • 2.Qxg4#
      • 1...Bg5
        • 2.Qh7#
      • 1...f6
        • 2.Sd6#
      • 1...Bf4!
    • 1.Be5?
      • threat
        • 2.Sd6#
      • 1...Ke4
        • 2.Sd6#
      • 1...Ba3!
    • 1.Rxf7+?
      • 1...Ke6
        • 2.Rf6#
      • 1...Ke4!
    • 1.Rg5+?
      • 1...Bxg5
        • 2.Qh7#
      • 1...Kxg5!
  • Keys
    • 1.Bh2!
      • threat
        • 2.Re5#
      • 1...Re2
        • 2.Qxg4#
      • 1...Bf4
        • 2.Qd3#
      • 1...Bg5
        • 2.Qh7#
      • 1...f6
        • 2.Sd6#

This anticipates 151484(1927)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(c);S_CUTB(b)::QAB1(A),XQ(f)
    • B(a);::QAB(A)
    • B(a);P_PINR(B)::QAB(A)
  • Tries
    • Try
      • B(C);
      • Threat
        • R1(B)
      • Vars
        • R(c);S_CUTB(b)::QAB1(A),XQ(f)
        • B(a);P_PINR(B)::QAB(A)
        • P(i);SBLOCK::S(E)
      • Refutation
        • B(a);
    • Try
      • B(C);
      • Threat
        • S(E)
      • Vars
        • K(h);N_SPINQ(f),S_FLIGHT::S(E)
      • Refutation
        • B(a);
    • Try
      • R(B);CHECK,XP(i)
      • Vars
        • K(h);S_FLIGHT::R1(B)
      • Refutation
        • K(h);N_SPINQ(f),S_FLIGHT
    • Try
      • R(F);CHECK
      • Vars
        • B(a);P_PINR(B),SBLOCK,XR(F)::QAB(A)
      • Refutation
        • K(h);N_SPINQ(f),P-FLIGHT,XR(F)
  • Actual
    • B(C);
    • Threat
      • R1(B)
    • Vars
      • R(c);S_CUTB(b)::QAB1(A),XQ(f)
      • B(a);::QAB(A)
      • B(a);P_PINR(B)::QAB(A)
      • P(i);SBLOCK::S(E)
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