MESON Chess Problem Database

Problem Display
PID: 108645 (q7/rn1r1pPB/b1pRNP1p/1n2k3/8/p4R2/Q1N5/2B3K1 w - - 0 1)

Kiss, Janos

Piatesi Festival, 1984

q7/rn1r1pPB/b1pRNP1p/1n2k3/8/p4R2/Q1N5/2B3K1

#2

10 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd6
      • 2.Bf4#
    • 1...c5
      • 2.Qd5#
    • 1...fxe6
      • 2.Rxe6#
      • 2.Qxe6#
  • Tries
    • 1.Se3?
      • threat
        • 2.Sc4#
        • 2.Qh2#
      • 1...Rxd6
        • 2.Sg4#
      • 1...S5xd6
        • 2.Sg4#
      • 1...S7xd6
        • 2.Sg4#
      • 1...Sc3
        • 2.Qh2#
      • 1...Sd4
        • 2.Qh2#
      • 1...Sc7
        • 2.Qh2#
      • 1...Sa5
        • 2.Qh2#
      • 1...Kxd6!
    • 1.Sc5?
      • threat
        • 2.Bf4#
      • 1...Rxd6
        • 2.Rf5#
      • 1...S5xd6
        • 2.Sxd7#
      • 1...S7xd6
        • 2.Sd3#
      • 1...Kxd6!
    • 1.Rf5+?
      • 1...Kxd6
        • 2.Bf4#
      • 1...Ke4!
    • 1.g8Q?
      • threat
        • 2.Qg3#
      • 1...Kxd6
        • 2.Bf4#
        • 2.Qg3#
      • 1...Qxg8+!
    • 1.g8S?
      • threat
        • 2.Bf4#
      • 1...Kxd6
        • 2.Bf4#
      • 1...Qxg8+!
  • Keys
    • 1.Sb4!
      • threat
        • 2.Qh2#
      • 1...Kxd6
        • 2.Bf4#
      • 1...Rxd6
        • 2.Qe2#
      • 1...S5xd6
        • 2.Sxc6#
      • 1...S7xd6
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • K(c);S_FLIGHT,XR(F)::B(A)
    • P(e);N_GUARD::QAR1(C)
  • Tries
    • Try
      • S(D);
      • Threat
        • DUALS(2)
      • Vars
        • R(i);SBLOCK,XR(F)::S(D)
        • S(b);SBLOCK,XR(F)::S(D)
        • S(h);SBLOCK,XR(F)::S(D)
        • S(b);::QAB(C)
        • S(h);::QAB(C)
      • Refutation
        • K(c);S_FLIGHT,XR(F)
    • Try
      • S(G);
      • Threat
        • B(A)
      • Vars
        • R(i);SBLOCK,XR(F)::R1(E)
        • S(b);SBLOCK,XR(F)::S(G),XR(i)
        • S(h);SBLOCK,XR(F)::S(G)
      • Refutation
        • K(c);S_FLIGHT,XR(F)
    • Try
      • R(E);CHECK
      • Vars
        • K(c);S_FLIGHT,XR(F)::B(A)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • P(I);
      • Threat
        • QAB(I)
      • Refutation
        • Q(k);CHECK,XQ(I)
    • Try
      • P(I);
      • Threat
        • B(A)
      • Vars
        • K(c);S_FLIGHT,XR(F)::B(A)
      • Refutation
        • Q(k);CHECK,XS(I)
  • Actual
    • S(D);
    • Threat
      • QAB(C)
    • Vars
      • K(c);S_FLIGHT,XR(F)::B(A)
      • R(i);SBLOCK,XR(F)::QAR(C)
      • S(b);SBLOCK,XR(F)::S(D),XP(e)
      • S(h);SBLOCK,XR(F)::S(D)
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