MESON Chess Problem Database

Problem Display
PID: 70755 (3R4/4P1n1/Kp2k1Pp/pB1N4/r1n3P1/1Qp3BN/1q1pP1p1/5b2 w - - 0 1)

Gvozdjak, Peter

Klemanic, Emil

Comm., Schiller MT, 1993-1994

3R4/4P1n1/Kp2k1Pp/pB1N4/r1n3P1/1Qp3BN/1q1pP1p1/5b2

#2

11 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Sa3
      • 2.Bd7#
      • 2.Rd6#
    • 1...Se3
      • 2.Bd7#
      • 2.Rd6#
    • 1...Sd6
      • 2.Bd7#
      • 2.Rxd6#
    • 1...Sh5
      • 2.e8Q#
      • 2.e8R#
    • 1...h5
      • 2.Sg5#
  • Tries
    • 1.Sc7+?
      • 1...Kxe7
        • 2.Bh4#
      • 1...Kf6!
    • 1.Bc7?
      • threat
        • 2.Shf4#
      • 1...Sa3
        • 2.Bd7#
      • 1...Se3
        • 2.Bd7#
      • 1...Se5
        • 2.Rd6#
      • 1...Sh5
        • 2.e8Q#
        • 2.e8R#
      • 1...Sd6!
    • 1.Bb8?
      • threat
        • 2.Shf4#
      • 1...Sa3
        • 2.Bd7#
      • 1...Se3
        • 2.Bd7#
      • 1...Se5
        • 2.Rd6#
      • 1...Sh5
        • 2.e8Q#
        • 2.e8R#
      • 1...Sd6!
    • 1.Qxc4?
      • threat
        • 2.Bd7#
        • 2.Rd6#
        • 2.Qc6#
        • 2.Qc8#
      • 1...Rxc4
        • 2.Rd6#
      • 1...Qa3
        • 2.Bd7#
        • 2.Qc8#
      • 1...Qb4
        • 2.Bd7#
        • 2.Qc8#
      • 1...Sf5
        • 2.Bd7#
        • 2.Qc8#
      • 1...Se8
        • 2.Bd7#
        • 2.Qc8#
      • 1...Qxb5+!
    • 1.e8S?
      • threat
        • 2.Sec7#
        • 2.Sxg7#
      • 1...Sf5
        • 2.Sec7#
      • 1...Sh5
        • 2.Sec7#
      • 1...c2
        • 2.Sec7#
      • 1...Sxe8!
  • Keys
    • 1.e4!
      • threat
        • 2.Bd7#
      • 1...Sa3
        • 2.Rd6#
      • 1...Se3
        • 2.Rd6#
      • 1...Se5
        • 2.Shf4#
      • 1...Sd6
        • 2.Rxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • S(l);N_GUARD::P=Q
    • P(k);N_GUARD::S(D)
  • Tries
    • Try
      • S(G);CHECK,P_PINS(g)
      • Vars
        • K(j);N_SPINS(g),P-FLIGHT,XP(J)::B(C)
      • Refutation
        • K(j);N_SPINS(g),P-FLIGHT
    • Try
      • B(C);
      • Threat
        • S(D)
      • Vars
        • S(g);::B(F)
        • S(g);N_GUARD,SBLOCK::R1(K)
        • S(l);N_GUARD::P=Q
      • Refutation
        • S(g);
    • Try
      • B(C);
      • Threat
        • S(D)
      • Vars
        • S(g);::B(F)
        • S(g);N_GUARD,SBLOCK::R1(K)
        • S(l);N_GUARD::P=Q
      • Refutation
        • S(g);
    • Try
      • Q(B);XS(g)
      • Threat
        • DUALS(4)
      • Vars
        • R(f);XQ(B)::R1(K)
      • Refutation
        • Q(b);CHECK,XB(F)
    • Try
      • P(J);
      • Threat
        • DUALS(2)
      • Vars
        • S(l);::S(J)
        • P(e);::S(J)
      • Refutation
        • S(l);XS(J)
  • Actual
    • P(A);
    • Threat
      • B(F)
    • Vars
      • S(g);N_GUARD,P_PINB(F)::R1(K)
      • S(g);P_PINB(F),SBLOCK::S(D)
      • S(g);N_GUARD,P_PINB(F)::R1(K),XS(g)
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