MESON Chess Problem Database

Problem Display
PID: 85654 (6b1/4K3/6Q1/1R1N1P2/4kr2/4pN2/1B6/5R2 w - - 0 1)

Pavlov, Mikhail Aleksandrovich

Intelectualie Egri, 1993

6b1/4K3/6Q1/1R1N1P2/4kr2/4pN2/1B6/5R2

#2

8 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rh4
      • 2.f6#
  • Tries
    • 1.Sb4?
      • threat
        • 2.Sg5#
        • 2.Re5#
      • 1...Rxf5
        • 2.Sg5#
        • 2.Qxf5#
      • 1...Rg4
        • 2.Qxg4#
      • 1...Rh4
        • 2.Sg5#
      • 1...e2
        • 2.Re5#
      • 1...Bd5
        • 2.Sg5#
      • 1...Rxf3!
    • 1.Sxf4?
      • threat
        • 2.Sg5#
      • 1...Kxf4
        • 2.Sd2#
      • 1...e2!
    • 1.Rd1?
      • threat
        • 2.Sg5#
      • 1...Rxf3
        • 2.Rb4#
      • 1...Rg4
        • 2.Qxg4#
      • 1...Kxf3!
    • 1.Rb4+?
      • 1...Kxd5
        • 2.Qd6#
      • 1...Kd3!
    • 1.Qg2?
      • threat
        • 2.Qc2#
      • 1...Kd3
        • 2.Se5#
      • 1...Kxf5
        • 2.Sh4#
      • 1...e2!
  • Keys
    • 1.Qc6!
      • threat
        • 2.Qc2#
      • 1...Kd3
        • 2.Sxf4#
      • 1...Kxf5
        • 2.Sxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(c);N_GUARD::QAB(G)+P(F)
  • Tries
    • Try
      • S(E);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);OGATEB::QAR2(G),XR(c)
        • R(c);::S(C)
        • P(a);::R1(D)
        • B(d);::S(C)
      • Refutation
        • R(c);XS(C)
    • Try
      • S(E);XR(c)
      • Threat
        • S(C)
      • Vars
        • K(b);P-FLIGHT,XS(E)::R(A)+S(C)
      • Refutation
        • P(a);
    • Try
      • R(A);
      • Threat
        • S(C)
      • Vars
        • R(c);SBLOCK,XS(C)::R(D)
        • R(c);OGATEB::QAR2(G),XR(c)
      • Refutation
        • K(b);S_FLIGHT,XS(C)
    • Try
      • R(D);CHECK
      • Vars
        • K(b);S_FLIGHT,XS(E)::QAR1(G)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(G);
      • Threat
        • QAB(G)
      • Vars
        • K(b);S_FLIGHT::S(C)
        • K(b);S_FLIGHT,XP(F)::S(C)
      • Refutation
        • P(a);
  • Actual
    • Q(G);
    • Threat
      • QAB(G)
    • Vars
      • K(b);S_FLIGHT::S(E),XR(c)
      • K(b);S_FLIGHT,XP(F)::R(D)+S(E),DCHECK,XP(a)
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