MESON Chess Problem Database

Problem Display
PID: 89776 (5r2/3P1n2/1R3Q2/2Br1N1N/1KP1kb1p/1np3R1/2p5/5B1b w - - 0 1)

Dyachuk, Vasyl Vasilovich

Die Schwalbe, 1997

5r2/3P1n2/1R3Q2/2Br1N1N/1KP1kb1p/1np3R1/2p5/5B1b

#2

10 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd3
      • 2.Bxd3#
    • 1...Rxc5
      • 2.Bd3#
    • 1...Re5
      • 2.Bd3#
    • 1...Rxf5
      • 2.Bd3#
    • 1...Bg2
      • 2.Bxg2#
    • 1...Be3
      • 2.Rxe3#
    • 1...Be5
      • 2.Re3#
    • 1...Bd6
      • 2.Re3#
    • 1...Bc7
      • 2.Re3#
    • 1...Bb8
      • 2.Re3#
    • 1...Sd4
      • 2.Bd3#
  • Tries
    • 1.Sd6+?
      • 1...Rxd6
        • 2.Qxf4#
      • 1...Bxd6
        • 2.Re3#
      • 1...Sxd6!
    • 1.Re6+?
      • 1...Re5
        • 2.Bd3#
      • 1...Be5
        • 2.Re3#
      • 1...Se5!
    • 1.Qe6+?
      • 1...Re5
        • 2.Sf6#
        • 2.Bd3#
      • 1...Be5
        • 2.Re3#
      • 1...Se5!
  • Keys
    • 1.Qc6!
      • threat
        • 2.Qxd5#
      • 1...Ke5
        • 2.Qe6#
      • 1...Kxf5
        • 2.Qe6#
      • 1...Be5
        • 2.Bd3#
      • 1...Se5
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 10
  • Sets
    • R(h);N_GUARD::B(A),XR(h)
    • R(h);N_GUARD,XB(E)::B(A)
    • R(h);N_GUARD::B(A)
    • R(h);N_GUARD,XS(F)::B(A)
    • B(a);N_GUARD::B(A),XB(a)
    • B(f);N_GUARD::R1(B),XB(f)
    • B(f);N_GUARD::R1(B)
    • B(f);N_GUARD,P_PINB(E)::R1(B)
    • S(c);S_CUTR(h)::B(A)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • R(h);XS(F)::QAR1(I),XB(f)
        • B(f);P_PINB(E),XS(F)::R1(B)
      • Refutation
        • S(i);XS(F)
    • Try
      • R(H);CHECK
      • Vars
        • R(h);P_SPINR(h)::B(A)
        • B(f);P_SPINB(f)::R1(B)
      • Refutation
        • S(i);P_SPINS(i)
    • Try
      • Q(I);CHECK
      • Vars
        • B(f);P_SPINB(f)::R1(B)
      • Refutation
        • S(i);P_SPINS(i)
  • Actual
    • Q(I);P_PINR(h)
    • Threat
      • QAB1(I),XR(h)
    • Vars
      • K(e);N_SPINR(h),P-FLIGHT::QAR1(I)
      • K(e);N_SPINR(h),S_FLIGHT,XS(F)::QAB1(I)
      • B(f);SBLOCK::B(A)
      • S(i);N_GUARD,SBLOCK,S_CUTB(f)::S(F)
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