MESON Chess Problem Database

Problem Display
PID: 21375 (B4bb1/4p3/8/p2P1p2/Q2Bk2r/1K2P2r/1P2P3/8 w - - 0 1)

Tuxen, Harri Viggo

Hvar a Dag, 1918

B4bb1/4p3/8/p2P1p2/Q2Bk2r/1K2P2r/1P2P3/8

#2

8 + 8

3360 Simple Two-move Themes 1924

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe3+
      • 2.Bc3#
    • 1...Be6
      • 2.dxe6#
    • 1...Bh7
      • 2.d6#
    • 1...e5
      • 2.Bc5#
      • 2.dxe5 ep#
    • 1...e6
      • 2.dxe6#
      • 2.d6#
  • Tries
    • 1.Ka2?
      • threat
        • 2.Qc2#
      • 1...Rxe3
        • 2.Bc3#
        • 2.Bf6#
        • 2.Bg7#
        • 2.Bh8#
      • 1...Bxd5+!
    • 1.Kc4?
      • threat
        • 2.Qc2#
      • 1...Bxd5+
        • 2.Bxd5#
      • 1...Rxe3!
    • 1.Qc4?
      • threat
        • 2.Qd3#
        • 2.Qc2#
      • 1...Rxe3+
        • 2.Bc3#
      • 1...Bxd5
        • 2.Bxd5#
        • 2.Qxd5#
      • 1...a4+!
  • Keys
    • 1.Ka3!
      • threat
        • 2.Qc2#
      • 1...Rxe3+
        • 2.Bc3#
      • 1...e5+
        • 2.Bc5#
      • 1...e6+
        • 2.d6#

This is after

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • R(a);CHECK,P_PINP(G),SBLOCK,XP(D)::QAR(E)+B(F)
    • B(h);OGATE::B(H)+P(G),XB(h)
    • B(h);OGATE::B(H)+P(G)
  • Tries
    • Try
      • K(C);N_SPINP(D),P_SPINP(G),S_FLIGHT
      • Threat
        • QAB(E)
      • Refutation
        • B(h);CHECK,P_SPINB(h),XP(G)
    • Try
      • K(C);N_SPINP(D),P_SPINP(G),S_FLIGHT
      • Threat
        • QAB(E)
      • Vars
        • B(h);CHECK,OGATE,P_SPINB(h),XP(G)::B(H),XB(h)
      • Refutation
        • R(a);XP(D)
    • Try
      • Q(E);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);CHECK,SBLOCK,XP(D)::QAR(E)+B(F)
      • Refutation
        • P(d);CHECK
  • Actual
    • K(C);P-FLIGHT
    • Threat
      • QAB(E)
    • Vars
      • R(a);CHECK,SBLOCK,XP(D)::QAR(E)+B(F)
      • P(f);CHECK,SBLOCK::QAR(E)+B(F)
      • P(f);CHECK,S_CUTB(h)::B(H)+P(G)
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