MESON Chess Problem Database

Problem Display
PID: 204965 (3N3b/2p4N/4B2p/2p1k3/4p3/6R1/1K1Q4/8 w - - 0 1)

Juricek, Stanislav

Sachova skladba, 2014

3N3b/2p4N/4B2p/2p1k3/4p3/6R1/1K1Q4/8

#2

6 + 6

5454 Near Snap 2020

SOLUTION

  • SOUND
  • Sets
    • 1...h5
      • 2.Rg5#
  • Tries
    • 1.Bh3?
      • threat
        • 2.Sc6#
        • 2.Sf7#
      • 1...c6
        • 2.Sxc6#
        • 2.Sf7#
      • 1...e3!
    • 1.Bg4?
      • threat
        • 2.Sc6#
        • 2.Sf7#
      • 1...c6
        • 2.Sxc6#
        • 2.Sf7#
      • 1...e3!
    • 1.Bd7?
      • threat
        • 2.Sc6#
        • 2.Sf7#
      • 1...c6
        • 2.Sxc6#
        • 2.Sf7#
      • 1...e3!
    • 1.Bc8?
      • threat
        • 2.Sc6#
        • 2.Sf7#
      • 1...c6
        • 2.Sxc6#
        • 2.Sf7#
      • 1...e3!
    • 1.Rd3?
      • threat
        • 2.Rd5#
        • 2.Qh2#
      • 1...e3
        • 2.Qxe3#
      • 1...c6
        • 2.Qh2#
      • 1...exd3!
    • 1.Rf3?
      • threat
        • 2.Rf5#
        • 2.Qd5#
      • 1...e3
        • 2.Qd5#
      • 1...c6
        • 2.Rf5#
      • 1...exf3!
    • 1.Qc3+?
      • 1...Kf4
        • 2.Rg4#
      • 1...Kd6!
    • 1.Qf4+?
      • 1...Kd4
        • 2.Sc6#
      • 1...Kxf4+!
  • Keys
    • 1.Qh2!
      • threat
        • 2.Rd3#
      • 1...Kf4+
        • 2.Rc3#
      • 1...Kd6+
        • 2.Rg7#
      • 1...Kd4
        • 2.Sc6#
      • 1...e3
        • 2.Rg4#

Anticipated by 109671(1892), 108165(1985)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • P(d);N_GUARD::R(C)
  • Tries
    • Try
      • B(D);
      • Threat
        • DUALS(2)
      • Refutation
        • P(a);
    • Try
      • B(D);
      • Threat
        • DUALS(2)
      • Refutation
        • P(a);
    • Try
      • B(D);
      • Threat
        • DUALS(2)
      • Refutation
        • P(a);
    • Try
      • B(D);
      • Threat
        • DUALS(2)
      • Refutation
        • P(a);
    • Try
      • R(C);
      • Threat
        • DUALS(2)
      • Vars
        • P(a);OGATEB::QAR2(B),XP(a)
        • P(e);::QAB(B)
      • Refutation
        • P(a);XR(C)
    • Try
      • R(C);
      • Threat
        • DUALS(2)
      • Vars
        • P(a);::QAR1(B)
        • P(e);::R1(C)
      • Refutation
        • P(a);XR(C)
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);P_PINQ(B),S_FLIGHT::R1(C)
      • Refutation
        • K(c);P_PINQ(B),S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);P_SPINP(a),S_FLIGHT::S(F)
      • Refutation
        • K(c);CHECK,S_FLIGHT,XQ(B)
  • Actual
    • Q(B);
    • Threat
      • QAB(B)+R(C)
    • Vars
      • K(c);CHECK,S_FLIGHT::QAB(B)+R(C)
      • K(c);S_FLIGHT::S(F)
      • P(a);::QAB(B)+R(C)
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