MESON Chess Problem Database

Problem Display
PID: 159568 (3b4/N7/5P2/p1k5/3R4/1P2P1B1/P2K1Q2/8 w - - 0 1)

Albregts, W

Tijdschrift vd NSB, 1900

3b4/N7/5P2/p1k5/3R4/1P2P1B1/P2K1Q2/8

#2

9 + 3

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Bb6
      • 2.Bd6#
      • 2.Qf5#
  • Tries
    • 1.Rc4+?
      • 1...Kd5
        • 2.Qf5#
      • 1...Kb6!
    • 1.Rd5+?
      • 1...Kb4
        • 2.Bd6#
      • 1...Kxd5
        • 2.Qf5#
      • 1...Kb6!
    • 1.Qf4?
      • threat
        • 2.Qd6#
      • 1...Bc7
        • 2.Qxc7#
      • 1...Be7
        • 2.Qc7#
      • 1...Kb6!
    • 1.e4?
      • threat
        • 2.Ra4#
        • 2.Rc4#
      • 1...Bxf6
        • 2.Rc4#
      • 1...a4
        • 2.Rxa4#
        • 2.Rc4#
      • 1...Kb6!
  • Keys
    • 1.Rb4!
      • threat
        • 2.Rb5#
      • 1...Kxb4
        • 2.Bd6#
      • 1...Kd5
        • 2.Qf5#
      • 1...axb4
        • 2.e4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(G);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR2(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(G);CHECK
      • Vars
        • K(b);S_FLIGHT::B(F)
        • K(b);P-FLIGHT,XR(G)::QAR2(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Vars
        • B(c);N_GUARD::QAR2(C),XB(c)
        • B(c);N_GUARD::QAR2(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • P(E);
      • Threat
        • DUALS(2)
      • Vars
        • B(c);XP(H)::QAB(C)+R(G),DCHECK
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • R(G);
    • Threat
      • R1(G)
    • Vars
      • K(b);S_FLIGHT,XR(G)::B(F)
      • K(b);P-FLIGHT::QAR2(C)
      • P(a);SBLOCK,XR(G)::QAB(C)+P(E)
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