MESON Chess Problem Database

Problem Display
PID: 134452 (1b2b2K/2n2BB1/4p1Pp/rR2pNkr/4p1pN/2n5/3PpR1Q/q7 w - - 0 1)

Stojnic, Dragan

Sp. Prize, Mat Plus Review, 2007

1b2b2K/2n2BB1/4p1Pp/rR2pNkr/4p1pN/2n5/3PpR1Q/q7

#2

10 + 14

23 Die Schwalbe 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Rxh4
      • 2.Qxh4#
    • 1...g3
      • 2.Qxg3#
    • 1...exf5
      • 2.Rxf5#
  • Tries
    • 1.Sg3?
      • threat
        • 2.Bf6#
      • 1...S3d5
        • 2.Sxe4#
      • 1...S7d5!
    • 1.Sd4?
      • threat
        • 2.Bf6#
      • 1...Rxh4
        • 2.Qxe5#
      • 1...g3
        • 2.Qxg3#
      • 1...S7d5
        • 2.Sxe6#
      • 1...S3d5!
    • 1.Sd6?
      • threat
        • 2.Bf6#
      • 1...Rxh4
        • 2.Qxe5#
      • 1...g3
        • 2.Qxg3#
      • 1...S3d5
        • 2.Sxe4#
      • 1...S7d5!
    • 1.Bxh6+?
      • 1...Kf6
        • 2.Qxe5#
      • 1...Rxh6+!
  • Keys
    • 1.Rxe5!
      • threat
        • 2.Qf4#
      • 1...Rxh4
        • 2.Qxh4#
      • 1...exf5
        • 2.Rfxf5#
      • 1...g3
        • 2.Qxg3#
      • 1...S7d5
        • 2.Sd6#
      • 1...S3d5
        • 2.Sd4#

This is after 61576

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(i);OGATE,XS(D)::QAB1(C),XR(i)
    • P(e);OGATEB::QAR2(C),XP(e)
    • P(j);OGATE,XS(F)::R1(B),XP(j)
  • Tries
    • Try
      • S(F);P_PINP(g)
      • Threat
        • B(I)
      • Vars
        • S(c);N_GUARD,N_SPINP(g)::S(F),XP(d)
      • Refutation
        • S(l);N_SPINP(g)
    • Try
      • S(F);P_PINP(g)
      • Threat
        • B(I)
      • Vars
        • R(i);SBLOCK,XS(D)::QAR2(C),XP(g)
        • P(e);OGATEB::QAR2(C),XP(e)
        • S(l);N_GUARD,N_SPINP(g)::S(F),XP(j)
      • Refutation
        • S(c);N_SPINP(g)
    • Try
      • S(F);P_PINP(g)
      • Threat
        • B(I)
      • Vars
        • R(i);SBLOCK,XS(D)::QAR2(C),XP(g)
        • P(e);OGATEB::QAR2(C),XP(e)
        • S(c);N_GUARD,N_SPINP(g)::S(F),XP(d)
      • Refutation
        • S(l);N_SPINP(g)
    • Try
      • B(I);CHECK,P_SPINB(I),XP(k)
      • Vars
        • K(h);S_FLIGHT::QAB1(C),XP(g)
      • Refutation
        • R(i);CHECK,XB(I)
  • Actual
    • R(E);XP(g)
    • Threat
      • QAB1(C)
    • Vars
      • R(i);OGATE,XS(D)::QAB1(C),XR(i)
      • P(j);OGATE,P_SPINP(j),XS(F)::R1(B),XP(j)
      • P(e);OGATEB::QAR2(C),XP(e)
      • S(l);S_CUTR(f)::R(E)+S(F)
      • S(c);S_CUTR(f)::R(E)+S(F)
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