MESON Chess Problem Database

Problem Display
PID: 235452 (B4Q2/r3p1pP/1R4P1/N2pkNpp/R5b1/6n1/K2P1n1q/6B1 w - - 0 1)

Pituk, Alexander

2nd Comm., Solarczyk MT, 1998

B4Q2/r3p1pP/1R4P1/N2pkNpp/R5b1/6n1/K2P1n1q/6B1

#2

11 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bxf5
      • 2.Qxg7#
    • 1...e6
      • 2.Sc6#
  • Tries
    • 1.Sxg3?
      • threat
        • 2.Qxg7#
        • 2.d4#
      • 1...Bf5
        • 2.Qxg7#
        • 2.Qxf5#
      • 1...Sd1
        • 2.Bd4#
        • 2.Qxg7#
      • 1...Sh1
        • 2.Bd4#
        • 2.Qxg7#
      • 1...Sd3
        • 2.Bd4#
        • 2.Qxg7#
      • 1...Sh3
        • 2.Bd4#
        • 2.Qxg7#
      • 1...Se4
        • 2.Bd4#
      • 1...d4
        • 2.Sc4#
      • 1...e6
        • 2.Sc6#
        • 2.d4#
      • 1...Qxg3!
    • 1.Qxe7+?
      • 1...Kxf5
        • 2.Qe6#
      • 1...Rxe7!
  • Keys
    • 1.Sh6!
      • threat
        • 2.Qxg7#
      • 1...gxh6
        • 2.h8Q#
        • 2.h8B#
      • 1...Sf5
        • 2.Sf7#
      • 1...Sfe4
        • 2.Bd4#
      • 1...Sge4
        • 2.d4#
      • 1...d4
        • 2.Sc4#
      • 1...e6
        • 2.Sc6#

This is a version

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • B(d);SBLOCK,XS(F)::QAB(K),XP(k)
    • P(j);SBLOCK::S(E)
  • Tries
    • Try
      • S(F);XS(c)
      • Threat
        • DUALS(2)
      • Vars
        • S(a);OGATE,P_PINP(C)::B(A)
        • P(e);N_GUARD,SBLOCK::S(E)
      • Refutation
        • Q(b);XS(F)
    • Try
      • Q(K);CHECK,XP(j)
      • Vars
        • K(f);P-FLIGHT,XS(F)::QAB1(K)
      • Refutation
        • R(i);XQ(K)
  • Actual
    • S(F);
    • Threat
      • QAB(K),XP(k)
    • Vars
      • P(k);XS(F)::P=Q
      • S(c);SBLOCK::S(F)
      • S(a);OGATE,P_PINP(C),SBLOCK::B(A)
      • S(c);SBLOCK::P(C)
      • P(e);N_GUARD,SBLOCK::S(E)
      • P(j);SBLOCK::S(E)
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