MESON Chess Problem Database

Problem Display
PID: 243084 (n3BB2/3p2K1/2RpN1p1/1p1k1bp1/p2PnPp1/P2PP1P1/7Q/8 w - - 0 1)

Anonymous

Source?, 0000

n3BB2/3p2K1/2RpN1p1/1p1k1bp1/p2PnPp1/P2PP1P1/7Q/8

#2

12 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe6
      • 2.Bf7#
      • 2.Qa2#
    • 1...Sd2
      • 2.Rxd6#
    • 1...Sf2
      • 2.Rxd6#
    • 1...Sc3
      • 2.Rxd6#
    • 1...Sxg3
      • 2.Rxd6#
    • 1...Sc5
      • 2.Rxd6#
    • 1...Sf6
      • 2.Rxd6#
    • 1...dxc6
      • 2.Qa2#
    • 1...dxe6
      • 2.Qa2#
  • Tries
    • 1.Bxd7?
      • threat
        • 2.Qa2#
      • 1...Sd2
        • 2.Rxd6#
      • 1...Sf2
        • 2.Rxd6#
      • 1...Sc3
        • 2.Rxd6#
      • 1...Sc5
        • 2.Rxd6#
      • 1...Sb6
        • 2.Sc7#
      • 1...b4!
    • 1.Qg2?
      • threat
        • 2.Rxd6#
      • 1...Kxe6
        • 2.Bf7#
        • 2.Qa2#
      • 1...dxc6
        • 2.Qa2#
      • 1...Kxc6!
  • Keys
    • 1.Qc2!
      • 1...Kxe6
        • 2.Bf7#
        • 2.Qa2#
      • 1...Bxe6
        • 2.dxe4#
      • 1...Sxg3
        • 2.Rxd6#
      • 1...gxf4
        • 2.Sxf4#
      • 1...dxc6
        • 2.Qa2#
      • 1...dxe6
        • 2.Qa2#
      • 1...Sc3
        • 2.Rxd6#
      • 1...Sc5
        • 2.Rxd6#
      • 1...b4
        • 2.Qc4#
      • 1...Sd2
        • 2.Rxd6#
      • 1...Sf2
        • 2.Rxd6#
      • 1...Sf6
        • 2.Rxd6#
      • 1...Sb6
        • 2.Sc7#
      • 1...Sc7
        • 2.Sxc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • S(b);N_GUARD::R1(H),XP(h)
    • S(b);N_GUARD,XP(E)::R1(H),XP(h)
    • P(j);XR(H)::QAB(A)
    • P(j);SBLOCK,XS(I)::QAB(A)
  • Tries
    • Try
      • B(K);XP(j)
      • Threat
        • QAB(A)
      • Vars
        • S(b);N_GUARD::R1(H),XP(h)
        • S(k);N_GUARD::S(I)
      • Refutation
        • P(d);
    • Try
      • Q(A);P_PINS(b)
      • Threat
        • R1(H),XP(h)
      • Vars
        • P(j);XR(H)::QAB(A)
      • Refutation
        • K(e);P_SPINP(j),S_FLIGHT,XR(H)
  • Actual
    • Q(A);
    • Vars
      • B(f);N_GUARD,SBLOCK,XS(I)::P(C),XS(b)
      • S(b);N_GUARD,XP(E)::R1(H),XP(h)
      • P(g);XP(G)::S(I),XP(g)
      • P(j);XR(H)::QAB(A)
      • P(j);SBLOCK,XS(I)::QAB(A)
      • S(b);N_GUARD::R1(H),XP(h)
      • P(d);N_GUARD::QAB1(A)
      • S(k);N_GUARD::S(I)
      • S(k);N_GUARD::S(I),XS(k)
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