MESON Chess Problem Database

Problem Display
PID: 240091 (3Q3K/p2p1k2/rRr2p1p/3p4/q2B1RN1/5n1b/8/8 w - - 0 1)

Mosiashvili, Givi

Pat a Mat, 2019

3Q3K/p2p1k2/rRr2p1p/3p4/q2B1RN1/5n1b/8/8

#2

6 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Rxf6#
      • 2.Qxf6#
    • 1...Rc1
      • 2.Rfxf6#
    • 1...Rc2
      • 2.Rfxf6#
    • 1...Rc3
      • 2.Rfxf6#
    • 1...Rc4
      • 2.Rfxf6#
    • 1...Rc5
      • 2.Rfxf6#
    • 1...Rc7
      • 2.Rfxf6#
    • 1...Rc8
      • 2.Rfxf6#
    • 1...d6
      • 2.Rxf6#
  • Tries
    • 1.Se5+?
      • 1...Ke6
        • 2.Rxf6#
        • 2.Qxf6#
        • 2.Qxd7#
      • 1...Sxe5!
    • 1.Sxf6?
      • threat
        • 2.Qe8#
      • 1...Ke6
        • 2.Qxd7#
      • 1...Kg6
        • 2.Qg8#
      • 1...Rxf6
        • 2.Rfxf6#
      • 1...Rc8
        • 2.Sg4#
      • 1...Re6!
    • 1.Sxh6+?
      • 1...Ke6
        • 2.Rxf6#
        • 2.Qxf6#
      • 1...Kg6!
    • 1.Qxf6+?
      • 1...Ke8
        • 2.Qf8#
      • 1...Rxf6!
  • Keys
    • 1.Bxf6!
      • threat
        • 2.Qg8#
      • 1...Ke6
        • 2.Qe7#
      • 1...Kg6
        • 2.Qe8#
      • 1...Rxf6
        • 2.Rfxf6#
      • 1...Rc8
        • 2.Bd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • R(f);N_GUARD::R1(B),XP(g)
    • R(f);N_GUARD,P_PINQ(E)::R1(B),XP(g)
    • P(j);S_CUTR(f)::R1(B),XP(g)
  • Tries
    • Try
      • S(C);CHECK
      • Refutation
        • S(a);XS(C)
    • Try
      • S(C);XP(g)
      • Threat
        • QAB1(E)
      • Vars
        • K(k);P_SPINR(f),S_FLIGHT::QAB1(E),XP(j)
        • K(k);S_FLIGHT::QAR2(E)
        • R(f);OGATE,P_SPINR(f),XS(C)::R1(B),XR(f)
        • R(f);N_GUARD,P_PINQ(E)::R(B)+S(C)
      • Refutation
        • R(f);
    • Try
      • S(C);CHECK,XP(h)
      • Refutation
        • K(k);N_SPINP(g),S_FLIGHT
    • Try
      • Q(E);CHECK,XP(g)
      • Vars
        • K(k);OGATE,S_FLIGHT::QAR1(E)
      • Refutation
        • R(f);P_SPINR(f),XQ(E)
  • Actual
    • B(A);XP(g)
    • Threat
      • QAB1(E)
    • Vars
      • K(k);P_SPINR(f),S_FLIGHT::QAR1(E)
      • K(k);S_FLIGHT::QAB(E)
      • R(f);OGATE,P_SPINR(f),XB(A)::R1(B),XR(f)
      • R(f);N_GUARD,P_PINQ(E)::R(B)+B(A)
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