MESON Chess Problem Database

Problem Display
PID: 245546 (3N4/8/4N3/2pk4/3B4/8/3KQ3/8 w - - 0 1)

Shumarin, Vladimir Pavlovich

64 Shakhmatnoe obozrenie, 2017

3N4/8/4N3/2pk4/3B4/8/3KQ3/8

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...c4
      • 2.Qe5#
  • Tries
    • 1.Sf4+?
      • 1...Kxd4
        • 2.Sc6#
        • 2.Sde6#
      • 1...Kd6!
    • 1.Sxc5?
      • 1...Kd6
        • 2.Qe5#
      • 1...Kxd4!
    • 1.Sc7+?
      • 1...Kxd4
        • 2.Sc6#
        • 2.Sde6#
      • 1...Kd6!
    • 1.Ba1?
      • threat
        • 2.Qd3#
      • 1...c4
        • 2.Qe5#
      • 1...Kd6!
    • 1.Bb2?
      • threat
        • 2.Qd3#
      • 1...c4
        • 2.Qe5#
      • 1...Kd6!
    • 1.Bc3?
      • threat
        • 2.Qd3#
      • 1...c4
        • 2.Qe5#
      • 1...Kd6!
    • 1.Bg7?
      • threat
        • 2.Qd3#
      • 1...c4
        • 2.Qe5#
      • 1...Kd6!
    • 1.Bh8?
      • threat
        • 2.Qd3#
      • 1...c4
        • 2.Qe5#
      • 1...Kd6!
    • 1.Qd3?
      • threat
        • 2.Ba1#
        • 2.Bb2#
        • 2.Bc3#
        • 2.Bf6#
        • 2.Bg7#
        • 2.Bh8#
      • 1...Kd6
        • 2.Bf6#
      • 1...cxd4
        • 2.Qxd4#
      • 1...c4!
  • Keys
    • 1.Bf6!
      • threat
        • 2.Qd3#
      • 1...Kd6
        • 2.Qd3#
      • 1...c4
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(a);SBLOCK::QAR1(B)
  • Tries
    • Try
      • S(D);CHECK
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(D);XP(a)
      • Vars
        • K(b);P-FLIGHT::QAB1(B)
      • Refutation
        • K(b);P-FLIGHT,XB(C)
    • Try
      • S(D);CHECK
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(C);
      • Threat
        • QAR2(B)
      • Vars
        • P(a);SBLOCK::QAR1(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(C);
      • Threat
        • QAR2(B)
      • Vars
        • P(a);SBLOCK::QAR1(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(C);
      • Threat
        • QAR2(B)
      • Vars
        • P(a);SBLOCK::QAR1(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(C);
      • Threat
        • QAR2(B)
      • Vars
        • P(a);SBLOCK::QAR1(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(C);
      • Threat
        • QAR2(B)
      • Vars
        • P(a);SBLOCK::QAR1(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(B);
      • Threat
        • DUALS(6)
      • Vars
        • K(b);P-FLIGHT::QAR(B)+B(C)
        • P(a);OGATE,P_SPINP(a),XB(C)::QAR1(B),XP(a)
      • Refutation
        • P(a);
  • Actual
    • B(C);
    • Threat
      • QAR2(B)
    • Vars
      • K(b);P-FLIGHT::QAR(B)
      • P(a);SBLOCK::QAR1(B)
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