MESON Chess Problem Database

Problem Display
PID: 7656 (3r4/3p3B/7b/1pP2r2/b4p2/2p2QPP/n1pk1BKR/6R1 w - - 0 1)

Dyachuk, Vasyl Vasilovich

2nd Place, Prioskaya Pravda, 1992-1993

3r4/3p3B/7b/1pP2r2/b4p2/2p2QPP/n1pk1BKR/6R1

#2

9 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc5
      • 2.Qd3#
    • 1...Re5
      • 2.Qd3#
    • 1...Rg5
      • 2.Qd3#
    • 1...Rh5
      • 2.Qd3#
    • 1...Rf6
      • 2.Qd3#
    • 1...Rf7
      • 2.Qd3#
    • 1...Rff8
      • 2.Qd3#
    • 1...Sc1
      • 2.Be1#
  • Tries
    • 1.Kh1?
      • threat
        • 2.Bd4#
      • 1...fxg3
        • 2.Bxg3#
      • 1...c1S
        • 2.Be1#
      • 1...Re5
        • 2.Be3#
        • 2.Qd3#
      • 1...Sc1
        • 2.Be1#
      • 1...Re8!
    • 1.Bxf5?
      • threat
        • 2.Qd3#
      • 1...c1S
        • 2.Be1#
      • 1...Sc1
        • 2.Be1#
      • 1...Sb4!
    • 1.Qd5+?
      • 1...Ke2
        • 2.Re1#
      • 1...Rxd5!
  • Keys
    • 1.Be1+!
      • 1...Kc1
        • 2.Bxc3#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 8
  • Sets
    • R(h);XP(H)::QAR1(E)
    • R(h);::QAR1(E)
    • R(h);P_PINP(F)::QAR1(E)
    • S(a);SBLOCK::B(B)
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Threat
        • R(D)+B(B)
      • Vars
        • P(f);OGATE,XP(F)::R(D)+B(B),XP(f)
        • P(b);SBLOCK::R(D)+B(B),DCHECK
        • S(a);SBLOCK::R(D)+B(B),DCHECK
      • Refutation
        • R(k);
    • Try
      • B(I);XR(h)
      • Threat
        • QAR1(E)
      • Vars
        • P(b);SBLOCK::B(B)
        • S(a);SBLOCK::B(B)
      • Refutation
        • S(a);
    • Try
      • Q(E);CHECK
      • Vars
        • K(c);P-FLIGHT::R1(A)
      • Refutation
        • R(h);XQ(E)
  • Actual
    • B(B);CHECK
    • Vars
      • K(c);OGATE,S_FLIGHT::R(A)+B(B),XP(d)
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