MESON Chess Problem Database

Problem Display
PID: 68469 (4r3/7n/q2Q4/1pBp3r/pN1NkP1p/6PB/b4PK1/1n6 w - - 0 1)

Paslack, Rainer

Die Schwalbe, 2006

4r3/7n/q2Q4/1pBp3r/pN1NkP1p/6PB/b4PK1/1n6

#2

9 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rf5
      • 2.Bxf5#
    • 1...Rh6
      • 2.Bf5#
    • 1...Sg5
      • 2.Bf5#
  • Tries
    • 1.Kg1?
      • threat
        • 2.Bg2#
      • 1...Sg5
        • 2.Bf5#
      • 1...Sd2!
    • 1.Se2?
      • threat
        • 2.f3#
      • 1...Sd2
        • 2.Sc3#
      • 1...d4
        • 2.Qxd4#
      • 1...Sg5!
    • 1.Sxb5?
      • threat
        • 2.f3#
      • 1...Sd2
        • 2.Sc3#
      • 1...d4
        • 2.Qxd4#
      • 1...Sg5!
    • 1.Sdc6?
      • threat
        • 2.f3#
      • 1...Sg5
        • 2.Qg6#
      • 1...d4
        • 2.Qxd4#
      • 1...Sd2!
    • 1.Se6?
      • threat
        • 2.f3#
      • 1...Sg5
        • 2.Qe5#
      • 1...d4
        • 2.Qxd4#
      • 1...Sd2!
    • 1.Qg6+?
      • 1...Rf5
        • 2.Bxf5#
        • 2.Qxf5#
      • 1...Qxg6!
  • Keys
    • 1.Sb3!
      • threat
        • 2.f3#
      • 1...Sd2
        • 2.Sxd2#
      • 1...Sg5
        • 2.Qxd5#
      • 1...d4
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • R(h);N_GUARD::B(D),XR(h)
    • R(h);N_GUARD::B(D)
    • S(j);S_CUTR(h)::B(D)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Threat
        • B(D)
      • Vars
        • S(j);S_CUTR(h)::B(D)
      • Refutation
        • S(a);
    • Try
      • S(F);
      • Threat
        • P(A)
      • Vars
        • S(a);N_GUARD::S(F)
        • P(g);OGATE::QAR1(I),XP(g)
      • Refutation
        • S(j);
    • Try
      • S(F);XP(f)
      • Threat
        • P(A)
      • Vars
        • S(a);N_GUARD::S(F)
        • P(g);OGATE::QAR1(I),XP(g)
      • Refutation
        • S(j);
    • Try
      • S(F);
      • Threat
        • P(A)
      • Vars
        • S(j);S_CUTR(h)::QAB(I)
        • P(g);OGATE::QAR1(I),XP(g)
      • Refutation
        • S(a);
    • Try
      • S(F);
      • Threat
        • P(A)
      • Vars
        • S(j);S_CUTR(h)::QAR1(I)
        • P(g);OGATE::QAR1(I),XP(g)
      • Refutation
        • S(a);
    • Try
      • Q(I);CHECK
      • Refutation
        • Q(i);P_PINP(C),XQ(I)
  • Actual
    • S(F);
    • Threat
      • P(A)
    • Vars
      • S(a);N_GUARD::S(F),XS(a)
      • S(j);S_CUTR(h)::QAB1(I),XP(g)
      • P(g);OGATE::QAR1(I),XP(g)
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