MESON Chess Problem Database

Problem Display
PID: 264939 (3N4/2QP1p1B/8/3k4/2p5/n1RP4/1Kn1P3/8 w - - 0 1)

Ouellet, Charles

The Problemist, 2022

3N4/2QP1p1B/8/3k4/2p5/n1RP4/1Kn1P3/8

#2

8 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Sd4
      • 2.Be4#
      • 2.e4#
    • 1...cxd3
      • 2.Qc5#
  • Tries
    • 1.Sb7?
      • threat
        • 2.Qd6#
      • 1...Kd4
        • 2.Qc5#
      • 1...Ke6
        • 2.Qd6#
      • 1...Sb5!
    • 1.Sxf7?
      • threat
        • 2.Qd6#
      • 1...Kd4
        • 2.Qe5#
      • 1...Sb5
        • 2.Qxc4#
      • 1...Ke6!
    • 1.Rxc4?
      • threat
        • 2.Be4#
        • 2.Qc5#
        • 2.e4#
      • 1...Se3
        • 2.Be4#
        • 2.Qc5#
      • 1...f5
        • 2.Bg8#
        • 2.Qc5#
      • 1...Sxc4+!
    • 1.e3?
      • threat
        • 2.Be4#
      • 1...cxd3
        • 2.Rc5#
        • 2.Qc5#
      • 1...f5
        • 2.Bg8#
      • 1...Sxe3!
    • 1.dxc4+?
      • 1...Kd4
        • 2.Rd3#
        • 2.Qd6#
      • 1...Sxc4+!
  • Keys
    • 1.d4!
      • threat
        • 2.Qe5#
        • 2.Qc5#
      • 1...Kxd4
        • 2.Qd6#
      • 1...Sxd4
        • 2.e4#
      • 1...f5
        • 2.Qe5#
      • 1...f6
        • 2.Qc5#

This is after

After Vasyl Dyachuk.

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • P(c);XP(D)::QAR1(E)
  • Tries
    • Try
      • S(H);
      • Threat
        • QAR1(E)
      • Vars
        • K(d);N_GUARD,P-FLIGHT::QAB1(E)
        • K(d);S_FLIGHT::QAR1(E)
      • Refutation
        • S(b);
    • Try
      • S(H);XP(e)
      • Threat
        • QAR1(E)
      • Vars
        • K(d);N_GUARD,P-FLIGHT::QAB1(E)
        • S(b);N_GUARD::QAB1(E),XP(c)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • R(C);XP(c)
      • Threat
        • DUALS(3)
      • Refutation
        • S(b);CHECK,XR(C)
    • Try
      • P(B);
      • Threat
        • B(G)
      • Vars
        • P(e);OGATEB::B(G)
      • Refutation
        • S(a);XP(B)
    • Try
      • P(D);CHECK,XP(c)
      • Refutation
        • S(b);CHECK,XP(D)
  • Actual
    • P(D);
    • Threat
      • DUALS(2)
    • Vars
      • K(d);N_GUARD,P-FLIGHT,XP(D)::QAR2(E)
      • S(a);SBLOCK,XP(D)::P(B)
      • P(e);::QAR1(E)
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