MESON Chess Problem Database

Problem Display
PID: 72551 (6B1/2P1Pn2/K1p1pb1Q/2Nk2r1/1P4nR/1P3NB1/8/2R1r3 w - - 0 1)

Pape, Edouard

Segers, Marcel

Tijdschrift vd NSB, 1931

6B1/2P1Pn2/K1p1pb1Q/2Nk2r1/1P4nR/1P3NB1/8/2R1r3

#2

12 + 8

5454 Near Snap 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Ree5
      • 2.Rd1#
    • 1...Rge5
      • 2.Qd2#
    • 1...Be5
      • 2.Qxe6#
    • 1...Sge5
      • 2.Rd4#
    • 1...Sd8
      • 2.cxd8Q#
      • 2.cxd8R#
  • Tries
    • 1.Rd1+?
      • 1...Bd4
        • 2.Rxd4#
      • 1...Rxd1!
  • Keys
    • 1.c8S!
      • threat
        • 2.Sb6#
      • 1...Ree5
        • 2.Rd1#
      • 1...Rge5
        • 2.Qd2#
      • 1...Be5
        • 2.Qxe6#
      • 1...Sge5
        • 2.Rd4#
      • 1...Sfe5
        • 2.Bxe6#
      • 1...e5
        • 2.Bxf7#

Anticipated by 72931(1930)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(a);N_GUARD,S_CUTB(g)::R(A)
    • R(d);OGATE::QAR(I)
    • B(g);OGATE::QAB1(I),XP(f)
    • S(b);OGATE::R1(F)
    • S(h);OGATE,P_SPINP(f)::PXS(h)=Q
  • Tries
    • Try
      • R(A);CHECK
      • Vars
        • B(g);N_GUARD,P_SPINB(g)::R1(A),XB(g)
      • Refutation
        • R(a);XR(A)
  • Actual
    • P(J);
    • Threat
      • S(J)
    • Vars
      • R(a);N_GUARD,S_CUTB(g)::R(A)
      • R(d);OGATE::QAR(I)
      • B(g);OGATE::QAB1(I),XP(f)
      • S(b);OGATE::R1(F)
      • S(h);OGATE,P_SPINP(f)::B(L),XP(f)
      • P(f);OGATEB,P_SPINS(h)::B(L),XS(h)
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