MESON Chess Problem Database

Problem Display
PID: 278002 (1K2B3/1P6/pR1PP3/k2N2BR/1p6/3p1p2/1n1Pqp2/8 w - - 0 1)

Murashev, Pavel Aleksandrovich

Pat a Mat, 2015

1K2B3/1P6/pR1PP3/k2N2BR/1p6/3p1p2/1n1Pqp2/8

#2

10 + 8

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Tries
    • 1.Sc7?
      • threat
        • 2.Be3#
        • 2.Rxa6#
      • 1...Qxe6
        • 2.Rxa6#
      • 1...Qe4
        • 2.Rxa6#
      • 1...Qe3
        • 2.Bxe3#
        • 2.Rxa6#
      • 1...Qe5
        • 2.Rxa6#
      • 1...Sa4
        • 2.Rxa6#
      • 1...Sc4
        • 2.Rxa6#
      • 1...b3
        • 2.Be3#
      • 1...Kxb6!
    • 1.Bd8?
      • threat
        • 2.Se3#
        • 2.Rxb4#
      • 1...Qxe6
        • 2.Rxb4#
      • 1...Qe4
        • 2.Rxb4#
      • 1...Qe3
        • 2.Sxe3#
      • 1...Qe5
        • 2.Rxb4#
      • 1...Sa4
        • 2.Rb5#
      • 1...b3
        • 2.Se3#
        • 2.Rxb3#
        • 2.Rb4#
      • 1...Sc4!
    • 1.Rxb4?
      • threat
        • 2.Bd8#
      • 1...Sa4
        • 2.Rxa4#
      • 1...Sc4
        • 2.Ra4#
      • 1...Qe3!
  • Keys
    • 1.Se3!
      • threat
        • 2.Bd8#
      • 1...Kxb6
        • 2.Bd8#
      • 1...Qxe3
        • 2.Bxe3#
      • 1...Sa4
        • 2.Sc4#
      • 1...Sc4
        • 2.Sxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Threat
        • DUALS(2)
      • Vars
        • Q(b);XP(G)::R1(E),XP(h)
        • Q(b);::R1(E),XP(h)
        • S(a);::R1(E),XP(h)
        • P(f);::R(D)+B(C)
      • Refutation
        • K(g);S_FLIGHT,XR(E)
    • Try
      • B(C);
      • Threat
        • DUALS(2)
      • Vars
        • Q(b);XP(G)::B(C)+R(E),XP(f)
        • Q(b);::B(C)+R(E),XP(f)
        • Q(b);::R(D)+S(B),XQ(b)
        • Q(b);P_PINP(F)::B(C)+R(E),XP(f)
        • S(a);SBLOCK::B(C)+R(E),DCHECK
      • Refutation
        • S(a);
    • Try
      • R(E);XP(f)
      • Threat
        • B(C)
      • Vars
        • S(a);N_GUARD::R1(E),XS(a)
        • S(a);N_GUARD::R1(E)
      • Refutation
        • Q(b);
  • Actual
    • S(B);
    • Threat
      • R(D)+B(C)
    • Vars
      • K(g);S_FLIGHT,XR(E)::B(C)
      • Q(b);OGATE,XS(B)::R(D)+B(C),XQ(b)
      • S(a);N_GUARD::S(B)
      • S(a);N_GUARD::S(B),XS(a)
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