MESON Chess Problem Database

Problem Display
PID: 277860 (q7/Q3r1b1/5B1p/6n1/1NR1Pkp1/2P2Nn1/1K1P2PP/1b2r3 w - - 0 1)

Turoverov, Valentin Alekseevich

diagrammes, 1981

q7/Q3r1b1/5B1p/6n1/1NR1Pkp1/2P2Nn1/1K1P2PP/1b2r3

#2

11 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qd5
      • 2.Sxd5#
    • 1...Qxa7
      • 2.Sd5#
    • 1...Qc8
      • 2.Sd5#
    • 1...Qe8
      • 2.Sd5#
    • 1...Qf8
      • 2.Sd5#
    • 1...Qh8
      • 2.Sd5#
    • 1...Rc1
      • 2.Qe3#
    • 1...Rd1
      • 2.Qe3#
    • 1...Rf1
      • 2.Qe3#
    • 1...Rg1
      • 2.Qe3#
    • 1...Rh1
      • 2.Qe3#
    • 1...Re3
      • 2.Qxe3#
      • 2.dxe3#
    • 1...Rc7
      • 2.Qxc7#
    • 1...Ba2
      • 2.Sd3#
    • 1...Bd3
      • 2.Sxd3#
    • 1...Se2
      • 2.Qe3#
    • 1...h5
      • 2.Bxg5#
  • Tries
    • 1.Qb8+?
      • 1...Re5
        • 2.Qxe5#
      • 1...Rc7
        • 2.Qxc7#
      • 1...Qxb8!
    • 1.Qc7+?
      • 1...Re5
        • 2.Qxe5#
      • 1...Rxc7!
  • Keys
    • 1.Sh4!
      • threat
        • 2.Sg6#
      • 1...Qxe4
        • 2.Sd5#
      • 1...R1xe4
        • 2.Qe3#
      • 1...R7xe4
        • 2.Qc7#
      • 1...Bxe4
        • 2.Sd3#
      • 1...S3xe4
        • 2.g3#
      • 1...S5xe4
        • 2.Qf2#
      • 1...Qe8
        • 2.Sd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 15
  • Sets
    • Q(j);N_GUARD::S(G),XQ(j)
    • Q(j);N_GUARD,XQ(K)::S(G)
    • Q(j);N_GUARD::S(G)
    • R(b);N_GUARD::QAB1(K)
    • R(h);N_GUARD::QAB(K),XR(h)
    • B(a);N_GUARD::S(G)
    • B(a);N_GUARD::S(G),XB(a)
    • S(c);S_CUTR(b)::QAB1(K)
    • P(g);N_GUARD::B(J),XS(f)
  • Tries
    • Try
      • Q(K);CHECK
      • Vars
        • R(h);N_GUARD,P_SPINR(h)::QAB1(K),XR(h)
        • R(h);N_GUARD,P_SPINR(h)::QAB(K),XR(h)
      • Refutation
        • Q(j);P_PINS(G),XQ(K)
    • Try
      • Q(K);CHECK
      • Vars
        • R(h);N_GUARD,P_SPINR(h)::QAB1(K),XR(h)
      • Refutation
        • R(h);XQ(K)
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • Q(j);N_GUARD,P_SPINQ(j),XP(I)::S(G)
      • R(b);N_GUARD,P_SPINR(b),XP(I)::QAB1(K)
      • R(h);N_GUARD,P_SPINR(h),XP(I)::QAB(K)
      • B(a);N_GUARD,P_SPINB(a),XP(I)::S(G)
      • S(c);OGATE,P_SPINS(c),XP(I)::P(C)
      • S(f);N_GUARD,P_SPINS(f),XP(I)::QAR2(K)
      • Q(j);N_GUARD::S(G)
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