MESON Chess Problem Database

Problem Display
PID: 55222 (b7/4p3/B1p1K3/1r4R1/P1k2Bp1/PpP4R/1n2P3/Q3N3 w - - 0 1)

Sumny, Milan

Troll, 1992

b7/4p3/B1p1K3/1r4R1/P1k2Bp1/PpP4R/1n2P3/Q3N3

#2

11 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sd3
      • 2.exd3#
    • 1...c5
      • 2.Bxb5#
  • Tries
    • 1.Bd6?
      • threat
        • 2.Rxg4#
        • 2.Rc5#
      • 1...Sxa4
        • 2.Rxg4#
      • 1...gxh3
        • 2.Rc5#
      • 1...g3
        • 2.Rc5#
      • 1...Sd3
        • 2.exd3#
      • 1...c5
        • 2.Bxb5#
        • 2.Rxc5#
      • 1...exd6!
    • 1.Rxg4?
      • threat
        • 2.Bd6#
      • 1...Kc5
        • 2.Be3#
      • 1...c5
        • 2.Bxb5#
      • 1...Sd3!
    • 1.Qd1?
      • threat
        • 2.Qd4#
      • 1...Sd3
        • 2.Qxd3#
      • 1...c5
        • 2.Bxb5#
      • 1...Sxd1!
  • Keys
    • 1.Be3!
      • threat
        • 2.Rc5#
      • 1...Kxc3
        • 2.Qc1#
      • 1...Sxa4
        • 2.Rxg4#
      • 1...Sd3
        • 2.exd3#
      • 1...c5
        • 2.Rxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(a);OGATE::P(C),XS(a)
    • P(f);N_GUARD::B(J),XR(e)
  • Tries
    • Try
      • B(H);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);XP(G)::R(I),XP(d)
        • P(d);XR(F)::R1(I)
        • P(d);::R1(I)
        • S(a);OGATE::P(C),XS(a)
      • Refutation
        • P(g);XB(H)
    • Try
      • R(I);XP(d)
      • Threat
        • R(I)+B(H)
      • Vars
        • K(c);N_SPINR(e),P-FLIGHT::B(H)
        • P(f);N_GUARD,SBLOCK::B(J),XR(e)
      • Refutation
        • S(a);
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • S(a);N_GUARD::QAB1(A),XS(a)
        • P(f);N_GUARD::B(J),XR(e)
      • Refutation
        • S(a);XQ(A)
  • Actual
    • B(H);
    • Threat
      • R1(I)
    • Vars
      • K(c);N_SPINR(e),OGATEB,P-FLIGHT,P_SPINS(a),XP(E)::QAR2(A)
      • S(a);XP(G)::R(I),XP(d)
      • S(a);OGATE::P(C),XS(a)
      • P(f);::R1(I),XP(f)
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Developed and maintained by Brian Stephenson.
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