MESON Chess Problem Database

Problem Display
PID: 193940 (1B6/6R1/n1prp2b/Q1p1N2p/5k1P/K2RpPN1/4P1r1/8 w - - 0 1)

Pape, Edouard

Brisbane Courier, 1916

1B6/6R1/n1prp2b/Q1p1N2p/5k1P/K2RpPN1/4P1r1/8

#2

10 + 10

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd3+
      • 2.Sxd3#
    • 1...Rd4
      • 2.Sg6#
    • 1...Rd5
      • 2.Sg6#
    • 1...Rd7
      • 2.Sg6#
    • 1...Rd8
      • 2.Sg6#
  • Tries
    • 1.Bxd6?
      • threat
        • 2.Sg6#
      • 1...Rxg3
        • 2.Rf7#
      • 1...Rxe2!
    • 1.Rd4+?
      • 1...Rxd4
        • 2.Sd3#
        • 2.Sg6#
      • 1...cxd4
        • 2.Sd3#
      • 1...Kxe5!
    • 1.Rg4+?
      • 1...Kxe5
        • 2.Qc3#
      • 1...hxg4!
    • 1.Rg5?
      • threat
        • 2.Sxh5#
        • 2.Sg6#
      • 1...Rxd3+
        • 2.Sxd3#
      • 1...Rxe2
        • 2.Sxe2#
        • 2.Sxh5#
      • 1...Rxg3
        • 2.Sg6#
      • 1...Bxg5!
    • 1.Rf7+?
      • 1...Kxe5
        • 2.Bxd6#
        • 2.Qc3#
      • 1...Kxg3!
  • Keys
    • 1.Qd8!
      • threat
        • 2.Qf6#
      • 1...Rxd3+
        • 2.Sxd3#
      • 1...Kxe5
        • 2.Bxd6#
      • 1...Rxd8
        • 2.Sg6#
      • 1...Bxg7
        • 2.Qg5#
      • 1...Bg5
        • 2.Qxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • R(h);CHECK,XR(C)::B(J)+S(H),DCHECK,XR(h)
    • R(h);::B(J)+S(H),DCHECK
  • Tries
    • Try
      • B(J);XR(h)
      • Threat
        • B(J)+S(H),DCHECK
      • Vars
        • R(a);SBLOCK,XS(E)::R(I)
      • Refutation
        • R(a);XP(A)
    • Try
      • R(C);CHECK
      • Vars
        • P(d);XR(C)::S(H)
      • Refutation
        • K(c);P_SPINP(d),P_SPINR(h),S_FLIGHT,XS(H)
    • Try
      • R(I);CHECK
      • Vars
        • K(c);P_SPINP(d),P_SPINR(h),S_FLIGHT,XS(H)::QAB(G)
      • Refutation
        • P(e);XR(I)
    • Try
      • R(I);
      • Threat
        • DUALS(2)
      • Vars
        • R(h);CHECK,XR(C)::B(J)+S(H),DCHECK,XR(h)
        • R(a);XS(E)::S(H)
      • Refutation
        • B(j);XR(I)
    • Try
      • R(I);CHECK
      • Refutation
        • K(c);S_FLIGHT,XS(E)
  • Actual
    • Q(G);
    • Threat
      • QAR2(G)
    • Vars
      • R(h);CHECK,XR(C)::B(J)+S(H),DCHECK,XR(h)
      • K(c);OGATEB,P_SPINR(h),S_FLIGHT,XS(H)::B(J),XR(h)
      • R(h);XQ(G)::B(J)+S(H),DCHECK
      • B(j);N_GUARD,XR(I)::QAB1(G)
      • B(j);N_GUARD::QAB1(G),XB(j)
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